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    956 Products

    Performance

    Performance

    General Purpose Washers

    Your go-to metal washer for every screw size. Washers take the pressure off nuts and screws to protect mounting surfaces.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    Super-Corrosion-Resistant High-Strength Bumax 109 Stainless Steel—As strong as 17-7 PH stainless steel and as corrosion resistant as 316 stainless steel. These washers are commonly used in demanding environments, such as marine and chemical processing applications.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide 18-8 Stainless Steel
    No. 000
    		0.040"0.078"0.010" to 0.020"—5096765A216000000
    No. 00
    		0.053"0.109"0.010" to 0.020"—5096765A21700000
    No. 0
    		0.062"0.156"0.010" to 0.040"—5096765A21800000
    No. 1
    		0.080"0.156"0.010" to 0.020"—5096765A21900000
    No. 2
    		0.094"0.250"0.018" to 0.039"—10096765A1050000
    No. 3
    		0.109"0.250"0.010" to 0.040"—5096765A22100000
    No. 4
    		0.125"0.312"0.024" to 0.038"—10096765A1100000
    No. 5
    		0.141"0.281"0.020" to 0.040"—5096765A22200000
    No. 6
    		0.141"0.375"0.024" to 0.039"—10096765A1150000
    No. 8
    		0.172"0.375"0.024" to 0.038"—10096765A1200000
    No. 10
    		0.203"0.438"0.024" to 0.038"—10096765A1250000
    No. 12
    		0.234"0.500"0.030" to 0.050"—5096765A22300000
    1/4"
    		0.281"0.625"0.040" to 0.060"—10096765A14000000
    5/16"
    		0.344"0.750"0.040" to 0.060"—10096765A14500000
    3/8"
    		0.406"0.875"0.040" to 0.060"—10096765A15000000
    7/16"
    		0.500"1.000"0.050" to 0.080"—1096765A21100000
    1/2"
    		0.531"1.250"0.052" to 0.072"—2596765A16000000
    9/16"
    		0.578"1.062"0.050" to 0.080"—1096765A21200000
    5/8"
    		0.688"1.500"0.068" to 0.088"—1096765A1750000
    3/4"
    		0.812"1.875"0.090" to 0.119"—596765A1800000
    7/8"
    		0.938"2.000"0.094" to 0.119"—596765A19000000
    1"
    		1.062"2.000"0.110" to 0.140"ASME B18.21.1596765A21000000
    1 1/8"
    		1.188"2.500"0.090" to 0.160"—196765A2130000
    1 1/4"
    		1.312"2.750"0.090" to 0.160"—196765A2140000
    1 3/8"
    		1.500"2.750"0.100" to 0.180"—196765A2150000
    1 1/2"
    		1.562"3.250"0.100" to 0.180"—190377A18900000
    1 3/4"
    		1.812"3.500"0.100" to 0.180"—190377A19100000
    2"
    		2.125"4.000"0.150" to 0.220"—196765A22400000
    M3
    		3.2 mm7.0 mm0.4 mm to 0.6 mmDIN 125, ISO 708910098269A4200000
    M4
    		4.3 mm9.0 mm0.7 mm to 0.9 mmDIN 125, ISO 708910098269A4300000
    M5
    		5.3 mm10.0 mm0.9 mm to 1.1 mmDIN 125, ISO 708910098269A4400000
    M6
    		6.4 mm12.0 mm1.4 mm to 1.8 mmDIN 125, ISO 708910098269A45000000
     
    Super-Corrosion-Resistant High-Strength Bumax 109 Stainless Steel
    M6
    		6.4 mm12.0 mm1.4 mm to 1.8 mmDIN 125, ISO 70891094316A3100000
    M8
    		8.4 mm16.0 mm1.4 mm to 1.8 mmDIN 125, ISO 70891094316A3200000
    M10
    		10.5 mm20.0 mm1.8 mm to 2.2 mmDIN 125, ISO 7089594316A3300000
    M12
    		13.0 mm24.0 mm2.3 mm to 2.7 mmDIN 125, ISO 7089594316A34000000
     
    Steel
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Corrosion-Resistant Chrome-Plated Steel—The brightest, shiniest finish we offer, this plating has a mirror-like appearance that is often used in decorative applications. It resists salt water and chemicals better than zinc plating and is less likely to wear off.
    Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
    Material Certificate—Washers include a report with a traceable lot number.
    For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
    For Screw
    Size
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Specs. Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
    No. 0
    		0.062"0.125"0.005" to 0.024"———2598029A02100000
    No. 1
    		0.078"0.156"0.005" to 0.024"———2598029A02200000
    No. 2
    		0.094"0.188"0.014" to 0.033"———2598029A0230000
    No. 4
    		0.125"0.250"0.049" to 0.068"———2598029A0240000
    No. 6
    		0.156"0.312"0.049" to 0.068"———2598029A0250000
    No. 8
    		0.172"0.375"0.049" to 0.068"———2598029A0260000
    No. 10
    		0.203"0.500"0.080" to 0.099"———2598029A0110000
    1/4"
    		0.281"0.625"0.105" to 0.130"———2598029A0290000
    5/16"
    		0.344"0.750"0.105" to 0.130"———2598029A0300000
    3/8"
    		0.406"0.750"0.079" to 0.098"———2598029A0450000
    7/16"
    		0.469"1.000"0.105" to 0.130"———2598029A0320000
    1/2"
    		0.531"1.125"0.105" to 0.130"——Material Certificate2598029A03300000
    9/16"
    		0.594"1.188"0.177" to 0.187"———598029A11500000
    5/8"
    		0.656"1.375"0.105" to 0.130"———1098029A0350000
    3/4"
    		0.812"1.500"0.198" to 0.223"———198099A0460000
    7/8"
    		0.906"1.750"0.136" to 0.161"———598029A03700000
    1"
    		1.031"2.000"0.168" to 0.193"——Material Certificate598029A03800000
    1 1/8"
    		1.156"2.250"0.199" to 0.224"———198029A03900000
    1 1/4"
    		1.281"2.5"0.24" to 0.26"———198029A0600000
    1 3/8"
    		1.500"2.750"0.235" to 0.265"———193550A11000000
    1 1/2"
    		1.625"3.000"0.235" to 0.265"——Material Certificate193550A11500000
    1 3/4"
    		1.875"3.375"0.235" to 0.265"———193550A12000000
    2"
    		2.125"3.750"0.235" to 0.265"———193550A12500000
    2 1/2"
    		2.625"4.500"0.298" to 0.328"———193550A13000000
     
    Corrosion-Resistant Chrome-Plated Steel
    1/4"
    		0.312"0.734"0.051" to 0.080"—ASME B18.21.1—1093960A12000000
     
    Black Super-Corrosion-Resistant-Coated Steel
    1/4"
    		0.312"0.750"0.055" to 0.072"SAE Grade 8
    		——1098026A11100000
    5/16"
    		0.375"0.875"0.064" to 0.080"SAE Grade 8
    		ASME B18.21.1—1098026A11200000
    3/8"
    		0.438"1.000"0.064" to 0.080"SAE Grade 8
    		ASME B18.21.1—598026A1130000
    7/16"
    		0.500"1.250"0.064" to 0.080"SAE Grade 8
    		ASME B18.21.1—598026A11400000
    1/2"
    		0.562"1.375"0.097" to 0.121"SAE Grade 8
    		ASME B18.21.1—598026A11500000
    9/16"
    		0.625"1.500"0.097" to 0.121"SAE Grade 8
    		——598026A11600000
    5/8"
    		0.688"1.750"0.122" to 0.146"SAE Grade 8
    		ASME B18.21.1—198026A1170000
    3/4"
    		0.812"2.000"0.122" to 0.146"SAE Grade 8
    		ASME B18.21.1—198026A1180000
    7/8"
    		0.938"2.250"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—198026A1190000
    1"
    		1.062"2.500"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—198026A1210000
    1 1/8"
    		1.250"2.750"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—198026A12200000
    1 1/4"
    		1.375"3.000"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—198026A12300000
    1 3/8"
    		1.500"3.250"0.136" to 0.160"SAE Grade 8
    		——198026A12400000
    1 1/2"
    		1.625"3.500"0.136" to 0.160"SAE Grade 8
    		——198026A12500000
    M4
    		4.3 mm9.0 mm0.7 mm to 0.9 mm—DIN 125, ISO 7089—1093413A1200000
    M5
    		5.3 mm10.0 mm0.9 mm to 1.1 mm—DIN 125, ISO 7089—1093413A1300000
    M6
    		6.4 mm12.0 mm1.4 mm to 1.8 mm—DIN 125, ISO 7089—1093413A14000000
    M7
    		7.4 mm14.0 mm1.4 mm to 1.8 mm—DIN 125, ISO 7089—593413A1500000
    M8
    		8.4 mm16.0 mm1.4 mm to 1.8 mm—DIN 125, ISO 7089—593413A1600000
    M10
    		10.5 mm20.0 mm1.8 mm to 2.2 mm—DIN 125, ISO 7089—593413A1700000
    M12
    		13.0 mm24.0 mm2.3 mm to 2.7 mm—DIN 125, ISO 7089—593413A1800000
    M14
    		15.0 mm28.0 mm2.3 mm to 2.7 mm—DIN 125, ISO 7089—593413A1900000
     
    Brass
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Softer than most metals, brass washers won't damage other fastening components.
    Nickel-Plated Brass—The nickel plating offers better corrosion resistance than plain brass to stand up to solvents, salt water, and chemicals. The plating can wear off over time, so these washers are not recommended for applications that experience a lot of friction or wear.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Nickel-Plated Brass
    No. 2
    		0.099"0.188"0.010" to 0.030"—10092917A10500000
    No. 4
    		0.120"0.281"0.018" to 0.032"ASTM B3610092917A1100000
    No. 6
    		0.147"0.312"0.018" to 0.032"ASTM B3610092917A1150000
    No. 8
    		0.172"0.375"0.025" to 0.039"ASTM B3610092917A1250000
    No. 10
    		0.200"0.438"0.029" to 0.043"ASTM B3610092917A1350000
    No. 12
    		0.228"0.500"0.030" to 0.050"—10092917A14600000
    1/4"
    		0.260"0.562"0.030" to 0.050"ASTM B3610092917A15500000
    5/16"
    		0.340"0.750"0.052" to 0.072"ASTM B362592917A1850000
    3/8"
    		0.392"0.875"0.052" to 0.072"ASTM B362592917A19500000
    7/16"
    		0.500"1.125"0.071" to 0.091"ASTM B361092917A20500000
     

    Oversized Washers

    These washers have exaggerated diameters to cover large holes and to compensate for uneven mounting surfaces. They are also thicker than general purpose washers, so they bridge wide gaps when used as spacers.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. Oversized Washers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2
    		2.2 mm7.0 mm0.6 mm to 1.0 mm—10091116A24000000
    M3
    		3.2 mm9.0 mm0.9 mm to 1.1 mmDIN 734910097310A1270000
    M4
    		4.3 mm12.0 mm1.4 mm to 1.8 mmDIN 734910097310A12800000
    M5
    		5.3 mm15.0 mm1.8 mm to 2.2 mmDIN 734910097310A12900000
    M6
    		6.4 mm17.0 mm2.7 mm to 3.3 mmDIN 73495097310A13100000
    M7
    		7.4 mm22.0 mm1.8 mm to 2.2 mmDIN 90212591116A25000000
    M8
    		8.4 mm21.0 mm3.7 mm to 4.3 mmDIN 73492597310A13200000
    M10
    		10.5 mm25.0 mm3.7 mm to 4.3 mmDIN 73491097310A1330000
    M12
    		13.0 mm30.0 mm5.4 mm to 6.6 mmDIN 73491097310A13400000
    M14
    		15.0 mm36.0 mm5.4 mm to 6.6 mmDIN 7349597310A13500000
    M14
    		15.0 mm44.0 mm2.7 mm to 3.3 mmDIN 9021191116A0190000
    M16
    		17.0 mm40.0 mm5.4 mm to 6.6 mmDIN 7349597310A13600000
    M18
    		20.0 mm56.0 mm3.4 mm to 4.6 mmDIN 9021191116A2100000
    M20
    		21.0 mm44.0 mm7.0 mm to 9.0 mmDIN 7349197310A1370000
    M24
    		25.0 mm50.0 mm9.0 mm to 11.0 mmDIN 7349197310A1380000
     
    Black-Oxide 18-8 Stainless Steel
    No. 0
    		0.078"0.188"0.010" to 0.030"—5090377A11100000
    No. 1
    		0.080"0.188"0.040" to 0.060"—5090377A13300000
    No. 2
    		0.094"0.312"0.050" to 0.080"—5090377A13400000
    No. 3
    		0.109"0.312"0.050" to 0.080"—5090377A13500000
    No. 4
    		0.125"0.344"0.050" to 0.080"—5090377A11200000
    No. 4
    		0.125"0.375"0.050" to 0.080"—5090377A11300000
    No. 5
    		0.141"0.375"0.050" to 0.080"—5090377A11400000
    No. 5
    		0.141"0.625"0.020" to 0.040"—2590377A1160000
    No. 6
    		0.156"0.438"0.020" to 0.040"—5090377A13700000
    No. 6
    		0.156"0.500"0.050" to 0.080"—2590377A1380000
    No. 6
    		0.156"0.562"0.040" to 0.060"—2590377A1150000
    No. 6
    		0.156"0.750"0.030" to 0.070"—2590377A1170000
    No. 8
    		0.172"0.500"0.050" to 0.080"—2590377A1420000
    No. 8
    		0.172"0.625"0.050" to 0.080"—2590377A1180000
    No. 8
    		0.172"0.750"0.030" to 0.050"—2590377A1190000
    No. 8
    		0.188"0.438"0.050" to 0.080"—2590377A1410000
    No. 8
    		0.188"0.750"0.040" to 0.060"—2590377A1210000
    No. 8
    		0.188"1.000"0.030" to 0.070"—2590377A12200000
    No. 10
    		0.203"0.500"0.030" to 0.050"—2590377A1230000
    No. 10
    		0.203"0.562"0.060" to 0.090"—2590377A1430000
    No. 10
    		0.203"0.625"0.060" to 0.090"—2590377A1440000
    No. 10
    		0.203"0.688"0.030" to 0.050"—2590377A1240000
    No. 10
    		0.203"0.750"0.030" to 0.050"—2590377A1250000
    No. 10
    		0.203"0.875"0.110" to 0.140"—1090377A14500000
    No. 10
    		0.203"1.000"0.030" to 0.050"—2590377A12600000
    No. 10
    		0.203"1.250"0.110" to 0.140"—590377A1920000
    No. 10
    		0.219"1.500"0.030" to 0.070"—1090377A1560000
    No. 12
    		0.250"0.562"0.040" to 0.060"—5090377A12700000
    No. 12
    		0.250"0.750"0.060" to 0.090"—2590377A14600000
    No. 12
    		0.250"1.000"0.060" to 0.090"—1090377A14700000
    No. 12
    		0.250"1.500"0.110" to 0.140"—590377A19300000
    1/4"
    		0.266"0.562"0.050" to 0.080"—2590377A1480000
    1/4"
    		0.266"0.875"0.050" to 0.080"—2590377A13100000
    1/4"
    		0.266"1.000"0.040" to 0.060"—1090377A1570000
    1/4"
    		0.266"1.250"0.040" to 0.060"—1090377A1580000
    1/4"
    		0.266"1.500"0.050" to 0.080"—1090377A15900000
    1/4"
    		0.266"2.000"0.050" to 0.080"—590377A1610000
    1/4"
    		0.266"2.500"0.050" to 0.080"—590377A16200000
    1/4"
    		0.266"3.000"0.050" to 0.080"—590377A16300000
    1/4"
    		0.281"0.625"0.110" to 0.140"—1090377A14900000
    1/4"
    		0.281"0.625"0.170" to 0.200"—590377A19400000
    1/4"
    		0.281"0.688"0.060" to 0.090"—2590377A12800000
    1/4"
    		0.281"0.750"0.060" to 0.090"—2590377A12900000
    5/16"
    		0.328"0.625"0.110" to 0.140"—1090377A15100000
    5/16"
    		0.344"0.750"0.110" to 0.140"—1090377A1520000
    5/16"
    		0.344"0.750"0.170" to 0.200"—590377A19500000
    5/16"
    		0.344"1.250"0.040" to 0.060"—1090377A1640000
    5/16"
    		0.344"1.500"0.050" to 0.080"—1090377A1650000
    5/16"
    		0.344"2.000"0.050" to 0.080"—590377A16600000
    5/16"
    		0.344"2.500"0.050" to 0.080"—590377A16700000
    5/16"
    		0.344"3.000"0.050" to 0.080"—590377A16800000
    3/8"
    		0.406"0.750"0.110" to 0.140"—1090377A15300000
    3/8"
    		0.406"0.875"0.110" to 0.140"—1090377A15400000
    3/8"
    		0.406"1.000"0.040" to 0.060"—1090377A1690000
    3/8"
    		0.406"1.000"0.110" to 0.140"—1090377A19600000
    3/8"
    		0.406"1.250"0.040" to 0.060"—1090377A1710000
    3/8"
    		0.406"1.500"0.050" to 0.080"—1090377A1720000
    3/8"
    		0.406"1.625"0.050" to 0.080"—590377A17300000
    3/8"
    		0.406"2.000"0.050" to 0.080"—590377A1740000
    3/8"
    		0.406"3.000"0.050" to 0.080"—590377A17500000
    7/16"
    		0.500"1.000"0.110" to 0.140"—1090377A19700000
    7/16"
    		0.500"1.125"0.050" to 0.080"—1090377A1760000
    7/16"
    		0.500"1.125"0.110" to 0.140"—590377A19800000
    7/16"
    		0.500"1.250"0.110" to 0.140"—590377A17700000
    7/16"
    		0.500"1.250"0.170" to 0.200"—190377A1990000
    7/16"
    		0.500"1.500"0.110" to 0.140"—590377A17800000
    7/16"
    		0.500"1.500"0.170" to 0.200"—190377A2010000
    1/2"
    		0.531"1.000"0.060" to 0.090"—1090377A13200000
    1/2"
    		0.531"1.125"0.110" to 0.140"—590377A2020000
    1/2"
    		0.531"1.250"0.110" to 0.140"—590377A17900000
    1/2"
    		0.531"1.250"0.170" to 0.200"—190377A2030000
    1/2"
    		0.531"1.500"0.050" to 0.080"—1090377A18100000
    1/2"
    		0.531"1.500"0.110" to 0.140"—590377A2040000
    1/2"
    		0.531"2.000"0.050" to 0.080"—590377A18200000
    1/2"
    		0.531"3.000"0.050" to 0.080"—590377A18300000
    9/16"
    		0.578"1.062"0.110" to 0.140"—590377A20500000
    9/16"
    		0.578"1.250"0.050" to 0.080"—1090377A18400000
    9/16"
    		0.625"1.375"0.050" to 0.080"—1090377A18500000
    9/16"
    		0.625"1.375"0.110" to 0.140"—590377A20600000
    5/8"
    		0.656"1.375"0.110" to 0.140"—590377A20800000
    5/8"
    		0.656"1.500"0.110" to 0.140"—590377A20900000
    5/8"
    		0.688"1.500"0.110" to 0.140"—590377A20700000
    3/4"
    		0.812"1.500"0.170" to 0.200"—190377A2110000
    3/4"
    		0.812"1.750"0.170" to 0.200"—190377A2120000
    3/4"
    		0.812"1.750"0.230" to 0.270"—190377A2130000
    3/4"
    		0.812"2.000"0.122" to 0.177"ASME B18.21.1190377A1870000
    7/8"
    		0.938"2.000"0.170" to 0.200"—190377A1550000
    7/8"
    		0.938"2.500"0.170" to 0.200"—190377A21400000
    1"
    		1.062"2.500"0.110" to 0.140"—190377A1880000
    1"
    		1.062"3.000"0.150" to 0.220"—190377A21500000
    M2
    		2.2 mm7.0 mm0.6 mm to 1.0 mm—1091116A31000000
    M2.5
    		2.7 mm8.0 mm0.7 mm to 0.9 mmDIN 90211091116A32000000
    M3
    		3.2 mm9.0 mm0.7 mm to 0.9 mmDIN 90211091116A33000000
    M4
    		4.3 mm12.0 mm0.9 mm to 1.1 mmDIN 90211091116A34000000
    M5
    		5.3 mm15.0 mm1.0 mm to 1.4 mmDIN 90211091116A35000000
    M6
    		6.4 mm18.0 mm1.4 mm to 1.8 mmDIN 90211091116A36000000
    M7
    		7.4 mm22.0 mm1.8 mm to 2.2 mmDIN 90211091116A37000000
    M8
    		8.4 mm24.0 mm1.8 mm to 2.2 mmDIN 9021591116A3800000
    M10
    		10.5 mm30.0 mm2.3 mm to 2.7 mmDIN 9021591116A39000000
    M12
    		13.0 mm37.0 mm2.7 mm to 3.3 mmDIN 9021191116A4100000
    M14
    		15.0 mm44.0 mm2.7 mm to 3.3 mmDIN 9021191116A4200000
    M16
    		17.0 mm50.0 mm2.7 mm to 3.3 mmDIN 9021191116A4300000
    M18
    		20.0 mm56.0 mm3.4 mm to 4.6 mmDIN 9021191116A4400000
    M20
    		22.0 mm60.0 mm3.4 mm to 4.6 mmDIN 9021191116A4500000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M2
    		2.2 mm7.0 mm0.6 mm to 1.0 mm—10095211A2600000
    M2.5
    		2.7 mm8.0 mm0.7 mm to 0.9 mmDIN 902110095211A1100000
    M3
    		3.2 mm9.0 mm0.7 mm to 0.9 mmDIN 90215095211A1200000
    M4
    		4.3 mm12.0 mm0.9 mm to 1.1 mmDIN 90215095211A1400000
    M5
    		5.3 mm15.0 mm1.0 mm to 1.4 mmDIN 90215095211A15000000
    M6
    		6.4 mm18.0 mm1.4 mm to 1.8 mmDIN 90212595211A1600000
    M7
    		7.4 mm22.0 mm1.8 mm to 2.2 mmDIN 90211095211A2700000
    M8
    		8.4 mm24.0 mm1.8 mm to 2.2 mmDIN 90211095211A1800000
    M10
    		10.5 mm30.0 mm2.3 mm to 2.7 mmDIN 9021595211A1900000
    M12
    		13.0 mm37.0 mm2.7 mm to 3.3 mmDIN 9021195211A2000000
    M14
    		15.0 mm44.0 mm2.7 mm to 3.3 mmDIN 9021195211A2100000
    M16
    		17.0 mm50.0 mm2.7 mm to 3.3 mmDIN 9021195211A2200000
    M18
    		20.0 mm56.0 mm3.4 mm to 4.6 mmDIN 9021195211A2300000
    M20
    		22.0 mm60.0 mm3.4 mm to 4.6 mmDIN 9021195211A2400000
     
    Steel
    Image of Product. Front orientation. Washers. Oversized Washers.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Blue-Dyed Steel—These metric-sized washers have a distinctive blue color, so you can easily tell them apart from inch washers. The coating provides only minimal corrosion resistance, so these washers are best for dry environments.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
    Material Certificate—Washers include a report with a traceable lot number.
    For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
    For Screw
    Size
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Specs.
    Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1/4"
    		0.281"0.625"0.090" to 0.108"SAE Grade 8
    		——10098025A029000000
    5/16"
    		0.344"0.688"0.090" to 0.108"SAE Grade 8
    		——5098025A03000000
    3/8"
    		0.406"0.812"0.110" to 0.126"SAE Grade 8
    		——5098025A03100000
    7/16"
    		0.469"0.922"0.110" to 0.126"SAE Grade 8
    		——2598025A1320000
    1/2"
    		0.531"1.062"0.190" to 0.208"SAE Grade 8
    		——2598025A13300000
    9/16"
    		0.594"1.172"0.168" to 0.191"SAE Grade 8
    		——1098025A03400000
    5/8"
    		0.656"1.312"0.206" to 0.229"SAE Grade 8
    		—Material Certificate1098025A03500000
    3/4"
    		0.812"1.469"0.206" to 0.229"SAE Grade 8
    		——1098025A03600000
    7/8"
    		0.938"1.750"0.235" to 0.264"SAE Grade 8
    		——598025A0370000
    1"
    		1.062"2.000"0.235" to 0.264"SAE Grade 8
    		——598025A0380000
    1 1/8"
    		1.188"2.250"0.235" to 0.264"SAE Grade 8
    		——598025A13900000
    1 1/4"
    		1.375"2.500"0.235" to 0.264"SAE Grade 8
    		——598025A04000000
    1 3/8"
    		1.438"2.750"0.235" to 0.264"SAE Grade 8
    		——198025A0430000
    1 1/2"
    		1.562"3.000"0.235" to 0.264"SAE Grade 8
    		——198025A0450000
     
    Black-Oxide Steel
    No. 4
    		0.125"0.312"0.068" to 0.088"———2598029A04100000
    No. 6
    		0.156"0.375"0.068" to 0.088"———2598029A04200000
    No. 6
    		0.156"0.562"0.120" to 0.130"———1092140A1010000
    No. 8
    		0.188"0.438"0.068" to 0.088"———2598029A04300000
    No. 8
    		0.188"0.750"0.120" to 0.130"———1092140A1040000
    No. 10
    		0.203"1.000"0.120" to 0.130"———1092140A10800000
    1/4"
    		0.281"0.500"0.064" to 0.083"———2598029A0270000
    1/4"
    		0.281"0.625"0.168" to 0.193"———1098099A0290000
    1/4"
    		0.281"0.750"0.130" to 0.150"———1098029A04700000
    1/4"
    		0.281"1.000"0.120" to 0.130"———1092140A11200000
    1/4"
    		0.281"1.500"0.120" to 0.130"———1092140A11400000
    5/16"
    		0.344"0.625"0.079" to 0.098"———2598029A0280000
    5/16"
    		0.344"0.688"0.105" to 0.130"———2598029A04400000
    5/16"
    		0.344"0.750"0.168" to 0.193"———1098099A0300000
    5/16"
    		0.344"0.875"0.130" to 0.150"———1098029A04800000
    5/16"
    		0.344"1.250"0.120" to 0.130"———1092140A11600000
    3/8"
    		0.406"0.875"0.105" to 0.130"———2598029A03100000
    3/8"
    		0.406"1.000"0.105" to 0.130"———1098029A0460000
    3/8"
    		0.406"1.000"0.168" to 0.193"———1098099A0310000
    3/8"
    		0.406"1.625"0.120" to 0.130"———1092140A11800000
    7/16"
    		0.469"1.000"0.168" to 0.193"———598099A0320000
    7/16"
    		0.469"1.250"0.168" to 0.193"———598029A04900000
    1/2"
    		0.531"1.062"0.168" to 0.192"———598099A0340000
    1/2"
    		0.531"1.125"0.168" to 0.193"———598099A0330000
    1/2"
    		0.531"1.375"0.146" to 0.166"———598029A0500000
    1/2"
    		0.531"1.500"0.198" to 0.233"———598029A05100000
    1/2"
    		0.531"2.000"0.120" to 0.130"———592140A12000000
    5/8"
    		0.656"1.312"0.198" to 0.223"———198099A0450000
    5/8"
    		0.656"1.375"0.168" to 0.193"———598099A0350000
    5/8"
    		0.656"1.500"0.198" to 0.233"———198029A0520000
    5/8"
    		0.656"1.750"0.146" to 0.166"———192140A1220000
    5/8"
    		0.719"1.250"0.230" to 0.255"———198029A0530000
    3/4"
    		0.781"1.625"0.136" to 0.161"———1098029A03600000
    3/4"
    		0.781"1.625"0.230" to 0.255"———598099A0360000
    3/4"
    		0.781"1.875"0.230" to 0.255"———198029A0540000
    3/4"
    		0.812"2.000"0.240" to 0.260"———192140A1240000
    3/4"
    		0.844"1.500"0.230" to 0.255"———198029A0550000
    7/8"
    		0.906"1.750"0.230" to 0.255"———598099A03700000
    7/8"
    		0.906"1.828"0.230" to 0.255"———198029A0560000
    7/8"
    		0.906"2.125"0.293" to 0.318"———198029A0570000
    1"
    		1.031"2.000"0.230" to 0.255"———198099A0480000
    1"
    		1.031"2.000"0.261" to 0.286"———198099A0380000
    1"
    		1.062"2.500"0.240" to 0.260"———192140A12600000
    1"
    		1.063"2.500"0.293" to 0.318"———198029A05800000
    1 3/8"
    		1.500"2.750"0.240" to 0.260"———198029A11600000
    1 1/2"
    		1.563"2.750"0.355" to 0.380"———198029A05900000
    1 1/2"
    		1.625"3.000"0.240" to 0.260"———198029A11700000
    1 3/4"
    		1.875"3.375"0.240" to 0.260"———198029A11800000
    2"
    		2.125"3.750"0.240" to 0.260"———198029A11900000
    M3
    		3.2 mm8.0 mm1.5 mm to 2.4 mm———2598035A10100000
    M3
    		3.2 mm12.0 mm2.5 mm to 3.4 mm———598040A1010000
    M4
    		4.3 mm10.0 mm1.5 mm to 2.4 mm———2598035A10200000
    M4
    		4.3 mm14.0 mm2.5 mm to 3.4 mm———598040A1020000
    M5
    		5.3 mm11.0 mm1.5 mm to 2.4 mm———1098035A1030000
    M5
    		5.3 mm15.0 mm3.0 mm to 3.9 mm———598040A1030000
    M6
    		6.4 mm13.0 mm2.0 mm to 2.9 mm———1098035A1040000
    M6
    		6.4 mm18.0 mm4.0 mm to 4.9 mm———598040A10400000
    M8
    		8.4 mm16.0 mm2.5 mm to 3.4 mm———1098035A1050000
    M8
    		8.4 mm22.0 mm4.5 mm to 5.4 mm———598040A1050000
    M10
    		10.5 mm19.0 mm2.5 mm to 3.4 mm———1098035A1060000
    M10
    		10.5 mm23.0 mm4.5 mm to 5.4 mm———598040A1060000
    M12
    		13.0 mm26.0 mm4.5 mm to 5.4 mm———598040A1070000
    M14
    		15.0 mm27.0 mm4.5 mm to 5.4 mm———598040A1080000
    M16
    		17.0 mm32.0 mm4.5 mm to 5.4 mm———598040A10900000
    M20
    		21.0 mm35.0 mm4.5 mm to 5.4 mm———598040A11000000
    M24
    		25.0 mm43.0 mm6.0 mm to 6.9 mm———598040A11100000
    M30
    		31.0 mm48.0 mm6.0 mm to 6.9 mm———198040A1120000
    M36
    		37.0 mm50.0 mm7.0 mm to 7.9 mm———198040A1130000
     
    Blue-Dyed Steel
    M6
    		7.0 mm12.0 mm2.7 mm to 4.0 mm———2593162A31000000
    M8
    		9.0 mm17.0 mm2.5 mm to 3.5 mm———5093162A32000000
    M10
    		11.0 mm20.0 mm3.0 mm to 4.5 mm———2593162A33000000
    M12
    		14.2 mm26.0 mm3.4 mm to 3.7 mm———1093162A3400000
    M16
    		18.0 mm32.0 mm3.1 mm to 4.6 mm———593162A3500000
    M20
    		22.0 mm38.0 mm2.9 mm to 3.3 mm———593162A3600000
    M24
    		26.0 mm48.0 mm3.4 mm to 4.6 mm———593162A37000000
    M30
    		33.0 mm58.0 mm3.4 mm to 4.6 mm———193162A3800000
    M36
    		39.3 mm70.0 mm3.9 mm to 4.3 mm———193162A39000000
     
    Steel
    M6
    		6.4 mm17.0 mm2.7 mm to 3.3 mm—DIN 6340—5094630A11100000
    M8
    		8.4 mm23.0 mm3.7 mm to 4.3 mm—DIN 6340—2594630A11200000
    M10
    		10.5 mm28.0 mm3.7 mm to 4.3 mm—DIN 6340—1094630A1130000
    M12
    		13.0 mm35.0 mm4.4 mm to 5.6 mm—DIN 6340—1094630A11400000
    M16
    		17.0 mm45.0 mm5.4 mm to 6.6 mm—DIN 6340—594630A11500000
    M20
    		21.0 mm50.0 mm5.4 mm to 6.6 mm—DIN 6340—594630A11600000
    M24
    		25.0 mm60.0 mm7.0 mm to 9.0 mm—DIN 6340—194630A1170000
    M30
    		31.0 mm68.0 mm9.0 mm to 11.0 mm—DIN 6340—194630A1180000
     
    Corrosion-Resistant Galvanized Steel
    1/2"
    		0.562"3.000"0.235" to 0.265"———198970A10000000
    5/8"
    		0.688"3.000"0.235" to 0.265"———198970A12500000
    3/4"
    		0.812"3.000"0.235" to 0.265"———198970A1500000
    7/8"
    		0.938"3.000"0.235" to 0.265"———198970A17500000
    1"
    		1.062"3.250"0.235" to 0.265"———198970A20000000
    1 1/4"
    		1.375"4.000"0.485" to 0.515"———198970A22500000
    1 1/2"
    		1.750"4.000"0.302" to 0.332"———198970A23100000
    1 3/4"
    		2.000"4.000"0.302" to 0.332"———198970A23200000
    2"
    		2.250"4.000"0.302" to 0.332"———198970A23300000
    2 1/2"
    		2.750"4.500"0.302" to 0.332"———198970A23400000
    3"
    		3.250"5.500"0.302" to 0.332"———198970A23500000
     
    Black Super-Corrosion-Resistant-Coated Steel
    3/16"
    		0.219"1.000"0.051" to 0.084"———1093413A20000000
    3/16"
    		0.219"1.250"0.051" to 0.084"———1093413A21000000
    1/4"
    		0.281"1.000"0.051" to 0.084"———1093413A22000000
    1/4"
    		0.281"1.250"0.051" to 0.084"———1093413A23000000
    1/4"
    		0.281"1.500"0.051" to 0.084"———593413A2400000
    1/4"
    		0.313"0.750"0.090" to 0.110"SAE Grade 8
    		——593413A3110000
    5/16"
    		0.344"1.250"0.051" to 0.084"———1093413A25000000
    5/16"
    		0.344"1.500"0.051" to 0.084"———593413A2600000
    5/16"
    		0.375"0.875"0.090" to 0.110"SAE Grade 8
    		——593413A3120000
    3/8"
    		0.406"1.250"0.051" to 0.084"———1093413A27000000
    3/8"
    		0.406"1.500"0.051" to 0.084"———593413A2800000
    3/8"
    		0.438"1.000"0.110" to 0.126"SAE Grade 8
    		——593413A31300000
    7/16"
    		0.500"1.250"0.110" to 0.126"SAE Grade 8
    		——593413A31400000
    1/2"
    		0.531"2.000"0.051" to 0.084"———593413A29000000
    1/2"
    		0.563"1.375"0.156" to 0.188"SAE Grade 8
    		——193413A3150000
    9/16"
    		0.625"1.500"0.156" to 0.188"SAE Grade 8
    		——193413A3160000
    5/8"
    		0.688"1.750"0.170" to 0.195"SAE Grade 8
    		——193413A3170000
    3/4"
    		0.813"2.000"0.170" to 0.195"SAE Grade 8
    		——193413A3180000
    7/8"
    		0.938"2.250"0.235" to 0.265"SAE Grade 8
    		——193413A31900000
    1"
    		1.063"2.500"0.235" to 0.265"SAE Grade 8
    		——193413A32100000
    M4
    		4.3 mm12.0 mm0.9 mm to 1.1 mm—DIN 9021—593413A2110000
    M5
    		5.3 mm15.0 mm1.0 mm to 1.4 mm—DIN 9021—593413A2120000
    M6
    		6.4 mm18.0 mm1.4 mm to 1.8 mm—DIN 9021—593413A2130000
    M8
    		8.4 mm24.0 mm1.8 mm to 2.2 mm—DIN 9021—593413A2140000
    M10
    		10.5 mm30.0 mm2.3 mm to 2.7 mm—DIN 9021—593413A21500000
    M12
    		13.0 mm37.0 mm2.7 mm to 3.3 mm—DIN 9021—193413A2160000
    M14
    		15.0 mm44.0 mm2.7 mm to 3.3 mm—DIN 9021—193413A2170000
     
    Brass
    Image of Product. Front orientation. Washers. Oversized Washers.
    Softer than most metals, brass washers won't damage other fastening components.
    Nickel-Plated Brass—The nickel plating offers better corrosion resistance than plain brass to stand up to solvents, salt water, and chemicals. The plating can wear off over time, so these washers are not recommended for applications that experience a lot of friction or wear.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Nickel-Plated Brass
    No. 6
    		0.147"0.375"0.025" to 0.039"10092917A12000000
    No. 8
    		0.172"0.438"0.029" to 0.043"10092917A1300000
    No. 10
    		0.200"0.500"0.033" to 0.047"10092917A14000000
    1/4"
    		0.260"0.688"0.041" to 0.061"5092917A16000000
    5/16"
    		0.340"0.875"0.052" to 0.072"2592917A19000000
    3/8"
    		0.392"1.000"0.071" to 0.091"1092917A20000000
     

    Mil. Spec. Washers

    These washers are manufactured and tested to strict U.S. military standards for material and construction. They take the pressure off screws and nuts to protect mounting surfaces.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    High-Temperature 321 Stainless Steel—The best stainless steel for high-temperature applications. These washers won't deform or lose strength when exposed to high heat up to 1500° F. They resist corrosion from mild cleaners, such as ammonia and acetone, but they can't withstand salt water or harsh chemicals as well as 316 stainless steel.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 0
    		0.063"0.099"0.015" to 0.018"—NAS620C025090945A700000000
    No. 0
    		0.068"0.130"0.022" to 0.028"MS51496P61—2598019A21100000
    No. 0
    		0.068"0.161"0.013" to 0.019"MS51496P62—2598019A21200000
    No. 1
    		0.078"0.188"0.016" to 0.025"MS15795-801NASM1579550098019A39500000
    No. 1
    		0.099"0.140"0.010" to 0.013"MS51496P79—2598019A21300000
    No. 1
    		0.099"0.161"0.022" to 0.028"MS51496P63—2598019A23600000
    No. 2
    		0.089"0.149"0.015" to 0.018"—NAS620C250090945A70500000
    No. 2
    		0.094"0.250"0.016" to 0.025"MS15795-802ASME B18.21.1, NASM1579550098019A30000000
    No. 2
    		0.099"0.250"0.014" to 0.018"AN960-C2LNAS1149-CN216R50098017A60000000
    No. 2
    		0.099"0.250"0.028" to 0.036"AN960-C2NAS1149-CN232R50098017A60100000
    No. 3
    		0.102"0.180"0.015" to 0.018"—NAS620C3L50090945A70700000
    No. 3
    		0.102"0.180"0.030" to 0.034"—NAS620C350090945A70800000
    No. 3
    		0.105"0.250"0.014" to 0.018"AN960-C3LNAS1149-CN316R50098017A10300000
    No. 3
    		0.105"0.250"0.028" to 0.036"AN960-C3NAS1149-CN332R50098017A60500000
    No. 3
    		0.109"0.219"0.022" to 0.028"MS51496P64—1098019A2370000
    No. 4
    		0.115"0.209"0.015" to 0.018"—NAS620C4L50090945A71000000
    No. 4
    		0.115"0.209"0.030" to 0.034"—NAS620C450090945A71100000
    No. 4
    		0.125"0.180"0.013" to 0.019"MS51496P80—1098019A2160000
    No. 4
    		0.125"0.180"0.029" to 0.032"MS51496P65—1098019A2180000
    No. 4
    		0.125"0.250"0.017" to 0.028"MS15795-803NASM1579550098019A30900000
    No. 4
    		0.125"0.255"0.013" to 0.019"MS51496P66—1098019A2170000
    No. 4
    		0.125"0.255"0.028" to 0.036"MS51496P67—1098019A2380000
    No. 4
    		0.125"0.312"0.014" to 0.018"AN960-C4LNAS1149-CN416R50098017A60900000
    No. 4
    		0.125"0.312"0.025" to 0.040"MS15795-804ASME B18.21.1, NASM1579550098019A31000000
    No. 4
    		0.125"0.312"0.028" to 0.036"AN960-C4ASME B18.21.1, NAS1149-CN432R50098017A61000000
    No. 5
    		0.128"0.238"0.015" to 0.018"—NAS620C5L50090945A71200000
    No. 5
    		0.128"0.238"0.030" to 0.034"—NAS620C525090945A71300000
    No. 5
    		0.140"0.438"0.028" to 0.036"—NAS1149-CN532R10098017A25100000
    No. 5
    		0.140"0.438"0.037" to 0.047"AN960-C5NAS1149-CN542R10098017A25200000
    No. 5
    		0.154"0.490"0.017" to 0.023"MS14151-1—10092503A17000000
    No. 6
    		0.143"0.267"0.015" to 0.018"—NAS620C6L25090945A71500000
    No. 6
    		0.143"0.267"0.030" to 0.034"—NAS620C625090945A71600000
    No. 6
    		0.149"0.375"0.014" to 0.018"AN960-C6LNAS1149-CN616R50098017A61400000
    No. 6
    		0.149"0.375"0.028" to 0.036"AN960-C6NAS1149-CN632R50098017A61500000
    No. 6
    		0.156"0.284"0.013" to 0.019"MS51496P68—1098019A22100000
    No. 6
    		0.156"0.284"0.029" to 0.035"MS51496P69—1098019A22300000
    No. 6
    		0.156"0.312"0.027" to 0.048"MS15795-805NASM1579525098019A31400000
    No. 6
    		0.156"0.375"0.036" to 0.065"MS15795-806ASME B18.21.1, NASM1579525098019A31500000
    No. 6
    		0.187"0.560"0.017" to 0.023"MS14151-6—10092503A18000000
    No. 8
    		0.169"0.304"0.015" to 0.018"—NAS620C8L25090945A72500000
    No. 8
    		0.169"0.304"0.030" to 0.034"—NAS620C825090945A72600000
    No. 8
    		0.174"0.375"0.014" to 0.018"AN960-C8LNAS1149-CN816R50098017A62400000
    No. 8
    		0.174"0.375"0.028" to 0.036"AN960-C8NAS1149-CN832R50098017A62500000
    No. 8
    		0.176"0.284"0.029" to 0.035"MS51496P70—1098019A23900000
    No. 8
    		0.188"0.375"0.036" to 0.065"MS15795-807NASM1579525098019A32500000
    No. 8
    		0.188"0.438"0.036" to 0.065"MS15795-841ASME B18.21.1, NASM1579512598019A32600000
    No. 8
    		0.199"0.315"0.029" to 0.032"MS51496P71—1098019A2410000
    No. 8
    		0.209"0.620"0.017" to 0.023"MS14151-2—10092503A19000000
    No. 10
    		0.195"0.354"0.030" to 0.034"—NAS620C10L25090945A74000000
    No. 10
    		0.195"0.354"0.060" to 0.066"—NAS620C1010090945A74100000
    No. 10
    		0.203"0.438"0.028" to 0.036"AN960-C10LNAS1149-C0332R25098017A63500000
    No. 10
    		0.203"0.438"0.057" to 0.069"AN960-C10NAS1149-C0363R25098017A64000000
    No. 10
    		0.210"0.365"0.029" to 0.032"MS51496P73—1098019A22600000
    No. 10
    		0.219"0.438"0.036" to 0.065"MS15795-808NASM1579525098019A33000000
    No. 10
    		0.219"0.500"0.036" to 0.065"MS15795-842ASME B18.21.1, NASM1579510098019A33300000
    No. 10
    		0.220"0.400"0.040" to 0.050"MS51496P82—1098019A22700000
    No. 12
    		0.250"0.562"0.051" to 0.080"MS15795-809ASME B18.21.1, NASM1579510098019A33500000
    1/4"
    		0.255"0.468"0.030" to 0.034"—NAS620C416L10090945A76000000
    1/4"
    		0.255"0.468"0.060" to 0.066"—NAS620C41610090945A76100000
    1/4"
    		0.265"0.500"0.028" to 0.036"AN960-C416LNAS1149-C0432R25098017A65500000
    1/4"
    		0.265"0.500"0.057" to 0.069"AN960-C416NAS1149-C0463R10098017A66000000
    1/4"
    		0.270"0.460"0.029" to 0.032"MS51496P75—1098019A25500000
    1/4"
    		0.275"1.090"0.017" to 0.023"MS14151-3—5092503A21000000
    1/4"
    		0.280"0.375"0.022" to 0.028"MS51496P84—1098019A22800000
    1/4"
    		0.281"0.625"0.051" to 0.080"MS15795-810ASME B18.21.1, NASM157955098019A35500000
    1/4"
    		0.288"0.440"0.029" to 0.032"MS51496P77—1098019A23100000
    1/4"
    		0.312"0.734"0.051" to 0.080"MS15795-811ASME B18.21.1, NASM157952598019A36000000
    1/4"
    		0.322"0.760"0.051" to 0.080"MS16212-11—5092503A11000000
    5/16"
    		0.317"0.525"0.029" to 0.032"MS51496P78—598019A2320000
    5/16"
    		0.328"0.562"0.028" to 0.036"AN960-C516LNAS1149-C0532R10098017A68900000
    5/16"
    		0.328"0.562"0.057" to 0.069"AN960-C516NAS1149-C0563R10098017A69000000
    5/16"
    		0.338"1.090"0.017" to 0.023"MS14151-4—5092503A22000000
    5/16"
    		0.344"0.688"0.051" to 0.080"MS15795-812ASME B18.21.1, NASM157952598019A3850000
    5/16"
    		0.375"0.875"0.064" to 0.104"MS15795-813NASM157952598019A39000000
    5/16"
    		0.385"0.760"0.051" to 0.080"MS16212-12—5092503A12000000
    3/8"
    		0.390"0.625"0.028" to 0.036"AN960-C616LNAS1149-C0632R10098017A19900000
    3/8"
    		0.390"0.625"0.057" to 0.069"AN960-C616NAS1149-C0663R10098017A20000000
    3/8"
    		0.390"0.625"0.082" to 0.098"—NAS1149-C0690R2598017A25300000
    3/8"
    		0.400"1.090"0.017" to 0.023"MS14151-5—5092503A23000000
    3/8"
    		0.406"0.812"0.051" to 0.080"MS15795-814ASME B18.21.1, NASM157955098019A39900000
    3/8"
    		0.421"0.630"0.045" to 0.055"MS51496P85—598019A23300000
    3/8"
    		0.438"1.000"0.064" to 0.104"MS15795-815ASME B18.21.1, NASM157951098019A5000000
    3/8"
    		0.447"0.885"0.064" to 0.104"MS16212-13—2592503A13000000
    7/16"
    		0.453"0.750"0.028" to 0.036"AN960-C716LNAS1149-C0732R10098017A20400000
    7/16"
    		0.453"0.750"0.057" to 0.069"AN960-C716NAS1149-C0763R2598017A20500000
    7/16"
    		0.453"0.750"0.082" to 0.098"—NAS1149-C0790R1098017A25400000
    7/16"
    		0.469"0.922"0.051" to 0.080"MS15795-816ASME B18.21.1, NASM157952598019A50200000
    7/16"
    		0.500"1.250"0.064" to 0.104"MS15795-817ASME B18.21.1, NASM157951098019A50500000
    1/2"
    		0.515"0.875"0.028" to 0.036"AN960-C816LNAS1149-C0832R10098017A20900000
    1/2"
    		0.515"0.875"0.057" to 0.069"AN960-C816NAS1149-C0863R5098017A21000000
    1/2"
    		0.515"0.875"0.082" to 0.098"—NAS1149-C0890R598017A25600000
    1/2"
    		0.531"1.062"0.074" to 0.121"MS15795-818ASME B18.21.1, NASM157951098019A50900000
    1/2"
    		0.562"1.375"0.086" to 0.132"MS15795-819ASME B18.21.1, NASM157951098019A51000000
    1/2"
    		0.572"1.260"0.086" to 0.132"MS16212-14—1092503A14000000
    9/16"
    		0.578"1.062"0.028" to 0.036"AN960-C916LNAS1149-C0932R2598017A25500000
    9/16"
    		0.578"1.062"0.057" to 0.069"AN960-C916NAS1149-C0963R2598017A21400000
    5/8"
    		0.640"1.188"0.028" to 0.036"AN960-C1016LNAS1149-C1032R2598017A25700000
    5/8"
    		0.640"1.188"0.057" to 0.069"AN960-C1016NAS1149-C1063R2598017A21500000
    5/8"
    		0.656"1.062"0.040" to 0.050"MS51496P86—198019A2340000
    5/8"
    		0.656"1.312"0.074" to 0.121"MS15795-820ASME B18.21.1, NASM157951098019A51400000
    5/8"
    		0.688"1.750"0.108" to 0.160"MS15795-821ASME B18.21.1, NASM15795598019A51500000
    5/8"
    		0.697"1.510"0.108" to 0.160"MS16212-15—592503A15000000
    3/4"
    		0.765"1.312"0.028" to 0.036"AN960-C1216LNAS1149-C1232R2598017A25800000
    3/4"
    		0.765"1.312"0.082" to 0.098"AN960-C1216NAS1149-C1290R1098017A22000000
    3/4"
    		0.812"1.469"0.108" to 0.160"MS15795-822ASME B18.21.1, NASM15795598019A51900000
    3/4"
    		0.812"2.000"0.122" to 0.177"MS15795-823ASME B18.21.1, NASM15795598019A52000000
    3/4"
    		0.813"1.125"0.013" to 0.019"MS51496P87—198019A2350000
    3/4"
    		0.822"1.760"0.122" to 0.177"MS16212-16—592503A16000000
    7/8"
    		0.890"1.500"0.028" to 0.036"AN960-C1416LNAS1149-C1432R1098017A25900000
    7/8"
    		0.890"1.500"0.082" to 0.098"AN960-C1416NAS1149-C1490R1098017A22500000
    7/8"
    		0.938"1.750"0.108" to 0.160"MS15795-824ASME B18.21.1, NASM15795598019A52400000
    7/8"
    		0.938"2.250"0.136" to 0.192"MS15795-825ASME B18.21.1, NASM15795198019A5250000
    1"
    		1.015"1.750"0.028" to 0.036"AN960-C1616LNAS1149-C1632R1098017A26100000
    1"
    		1.015"1.750"0.082" to 0.098"AN960-C1616NAS1149-C1690R598017A23000000
    1"
    		1.062"2.000"0.108" to 0.160"MS15795-826ASME B18.21.1, NASM15795198019A5290000
    1"
    		1.062"2.500"0.136" to 0.192"MS15795-827ASME B18.21.1, NASM15795198019A5300000
    1 1/8"
    		1.140"1.875"0.028" to 0.036"AN960-C1816LNAS1149-C1832R1098017A26200000
    1 1/8"
    		1.140"1.875"0.082" to 0.098"AN960-C1816NAS1149-C1890R598017A26300000
    1 1/4"
    		1.265"2.000"0.028" to 0.036"AN960-C2016LNAS1149-C2032R598017A26400000
    1 1/4"
    		1.265"2.000"0.082" to 0.098"AN960-C2016NAS1149-C2090R198017A26500000
    1 1/2"
    		1.515"2.250"0.028" to 0.036"—NAS1149-C2432R198017A2660000
    1 1/2"
    		1.515"2.250"0.082" to 0.098"—NAS1149-C2490R198017A26700000
     
    Black-Oxide 18-8 Stainless Steel
    No. 1
    		0.078"0.188"0.016" to 0.025"MS15795-801BNASM1579510090618A11100000
    No. 2
    		0.094"0.218"0.018" to 0.022"MS15795-844BNASM1579510090618A11300000
    No. 2
    		0.094"0.250"0.016" to 0.025"MS15795-802BASME B18.21.1, NASM1579510090618A11200000
    No. 4
    		0.125"0.250"0.017" to 0.028"MS15795-803BNASM1579510090618A2000000
    No. 4
    		0.125"0.312"0.025" to 0.040"MS15795-804BASME B18.21.1, NASM1579510090618A11400000
    No. 6
    		0.156"0.312"0.027" to 0.048"MS15795-805BNASM1579510090618A3000000
    No. 6
    		0.156"0.375"0.036" to 0.065"MS15795-806BASME B18.21.1, NASM1579510090618A11500000
    No. 6
    		0.172"0.281"0.029" to 0.039"MS15795-845BNASM1579510090618A11600000
    No. 6
    		0.172"0.312"0.029" to 0.039"MS15795-856BNASM1579510090618A11700000
    No. 8
    		0.188"0.375"0.036" to 0.065"MS15795-807BNASM1579510090618A40000000
    No. 8
    		0.188"0.438"0.036" to 0.065"MS15795-841BASME B18.21.1, NASM1579510090618A11800000
    No. 10
    		0.203"0.375"0.019" to 0.021"MS15795-846BNASM1579510090618A11900000
    No. 10
    		0.203"0.562"0.029" to 0.035"MS15795-847BNASM1579510090618A12200000
    No. 10
    		0.203"0.562"0.057" to 0.069"MS15795-848BNASM157955090618A12300000
    No. 10
    		0.203"0.625"0.035" to 0.045"MS15795-849BNASM157955090618A1240000
    No. 10
    		0.203"0.734"0.025" to 0.045"MS15795-857BNASM157955090618A12500000
    No. 10
    		0.203"1.062"0.017" to 0.023"MS15795-850BNASM157951090618A12600000
    No. 10
    		0.219"0.438"0.036" to 0.065"MS15795-808BNASM1579510090618A50000000
    No. 10
    		0.219"0.500"0.036" to 0.065"MS15795-842BASME B18.21.1, NASM1579510090618A12100000
    1/4"
    		0.250"0.562"0.051" to 0.080"MS15795-809BNASM1579510090618A12900000
    1/4"
    		0.250"0.688"0.065" to 0.075"MS15795-851BNASM157952590618A13200000
    1/4"
    		0.266"0.458"0.028" to 0.046"MS15795-858BNASM1579510090618A12800000
    1/4"
    		0.266"0.625"0.026" to 0.036"MS15795-852BNASM1579510090618A13100000
    1/4"
    		0.266"0.688"0.046" to 0.054"MS15795-853BNASM157955090618A13300000
    1/4"
    		0.281"0.625"0.051" to 0.080"MS15795-810BASME B18.21.1, NASM157955090618A60000000
    1/4"
    		0.296"0.438"0.029" to 0.035"MS15795-854BNASM1579510090618A12700000
    5/16"
    		0.312"0.734"0.051" to 0.080"MS15795-811BNASM157955090618A13400000
    5/16"
    		0.344"0.688"0.051" to 0.080"MS15795-812BASME B18.21.1, NASM157955090618A70000000
    3/8"
    		0.375"0.875"0.064" to 0.104"MS15795-813BNASM157952590618A13500000
    3/8"
    		0.406"0.812"0.051" to 0.080"MS15795-814BASME B18.21.1, NASM157955090618A80000000
    7/16"
    		0.438"1.000"0.064" to 0.104"MS15795-815BNASM157952590618A13600000
    7/16"
    		0.469"0.922"0.051" to 0.080"MS15795-816BASME B18.21.1, NASM157952590618A13700000
    1/2"
    		0.500"1.250"0.064" to 0.104"MS15795-817BNASM157951090618A13800000
    1/2"
    		0.531"1.062"0.074" to 0.121"MS15795-818BASME B18.21.1, NASM157951090618A90000000
    1/2"
    		0.531"1.250"0.090" to 0.112"MS15795-855BNASM157951090618A13900000
    1/2"
    		0.562"1.375"0.086" to 0.132"MS15795-819BASME B18.21.1, NASM15795590618A14100000
    9/16"
    		0.594"1.469"0.090" to 0.112"MS15795-843BNASM15795590618A14200000
    5/8"
    		0.656"1.312"0.074" to 0.121"MS15795-820BASME B18.21.1, NASM15795590618A14300000
    3/4"
    		0.812"1.469"0.108" to 0.160"MS15795-822BASME B18.21.1, NASM15795590618A14400000
    3/4"
    		0.812"2.000"0.122" to 0.177"MS15795-823BASME B18.21.1, NASM15795590618A14500000
    7/8"
    		0.938"1.750"0.108" to 0.160"MS15795-824BASME B18.21.1, NASM15795590618A14600000
    7/8"
    		0.938"2.250"0.136" to 0.192"MS15795-825BASME B18.21.1, NASM15795190618A1470000
    1"
    		1.062"2.000"0.108" to 0.160"MS15795-826BASME B18.21.1, NASM15795190618A1480000
    1"
    		1.062"2.500"0.136" to 0.192"MS15795-827BASME B18.21.1, NASM15795190618A1490000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"MS15795-828BASME B18.21.1, NASM15795190618A15100000
     
    High-Temperature 321 Stainless Steel
    3/4"
    		0.776"1.188"0.028" to 0.036"MS9549-17—1091877A14100000
    7/8"
    		0.901"1.375"0.028" to 0.036"MS9549-18—1091877A14200000
    1"
    		1.026"1.562"0.028" to 0.036"MS9549-19—591877A14300000
     
    Steel
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    Low-Friction Cadmium-Plated Steel—The plating reduces friction between the washer, fastener, and mounting surface to prevent sticking when fastening and loosening. It also creates a barrier against rust that's comparable to zinc yellow-chromate plating.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Low-Friction Cadmium-Plated Steel
    No. 0
    		0.063"0.099"0.015" to 0.017"—NAS620-01005360N111000000
    No. 1
    		0.078"0.188"0.016" to 0.025"MS27183-1—10098032A4130000
    No. 2
    		0.089"0.149"0.015" to 0.017"—NAS620-21005360N1120000
    No. 2
    		0.094"0.250"0.016" to 0.025"MS27183-2ASME B18.21.110098032A4170000
    No. 2
    		0.099"0.250"0.029" to 0.035"AN960-2NAS1149-FN232P10095229A2300000
    No. 3
    		0.102"0.180"0.015" to 0.017"—NAS620-3L255360N1130000
    No. 3
    		0.102"0.180"0.031" to 0.033"—NAS620-3255360N11400000
    No. 3
    		0.125"0.250"0.017" to 0.028"MS27183-3—10098032A4210000
    No. 4
    		0.115"0.209"0.015" to 0.017"—NAS620-4L1005360N11500000
    No. 4
    		0.115"0.209"0.031" to 0.033"—NAS620-41005360N11600000
    No. 4
    		0.125"0.312"0.014" to 0.018"AN960-4LNAS1149-FN416P10095229A2600000
    No. 4
    		0.125"0.312"0.025" to 0.040"MS27183-4ASME B18.21.110098032A4250000
    No. 4
    		0.125"0.312"0.029" to 0.035"AN960-4ASME B18.21.1, NAS1149-FN432P10095229A2700000
    No. 4
    		0.125"0.375"0.025" to 0.040"MS27183-44—10098032A4290000
    No. 5
    		0.128"0.238"0.015" to 0.017"—NAS620-5L1005360N1170000
    No. 5
    		0.128"0.238"0.031" to 0.033"—NAS620-52505360N11800000
    No. 5
    		0.141"0.281"0.025" to 0.040"MS27183-45—10098032A4320000
    No. 6
    		0.143"0.267"0.015" to 0.017"—NAS620-6L1005360N1190000
    No. 6
    		0.143"0.267"0.031" to 0.033"—NAS620-61005360N12100000
    No. 6
    		0.149"0.375"0.014" to 0.018"AN960-6LNAS1149-FN616P10095229A3100000
    No. 6
    		0.149"0.375"0.029" to 0.035"AN960-6NAS1149-FN632P10095229A3200000
    No. 6
    		0.156"0.250"0.013" to 0.020"MS27183-43—10098032A4360000
    No. 6
    		0.156"0.312"0.027" to 0.048"MS27183-5—10098032A4430000
    No. 6
    		0.156"0.375"0.036" to 0.065"MS27183-6ASME B18.21.110098032A4470000
    No. 8
    		0.169"0.304"0.015" to 0.017"—NAS620-8L2505360N12200000
    No. 8
    		0.169"0.304"0.031" to 0.033"—NAS620-81005360N12300000
    No. 8
    		0.174"0.375"0.014" to 0.018"AN960-8LNAS1149-FN816P10095229A3300000
    No. 8
    		0.174"0.375"0.029" to 0.035"AN960-8NAS1149-FN832P10095229A3400000
    No. 8
    		0.188"0.375"0.036" to 0.065"MS27183-7—10098032A4510000
    No. 8
    		0.188"0.438"0.036" to 0.065"MS27183-41ASME B18.21.110098032A45700000
    No. 8
    		0.188"0.500"0.051" to 0.080"MS27183-46—10098032A4620000
    No. 10
    		0.195"0.354"0.031" to 0.033"—NAS620-10L1005360N1240000
    No. 10
    		0.195"0.354"0.062" to 0.064"—NAS620-101005360N1250000
    No. 10
    		0.203"0.438"0.029" to 0.035"AN960-10LNAS1149-F0332P10095229A3700000
    No. 10
    		0.203"0.438"0.059" to 0.067"AN960-10NAS1149-F0363P10095229A3800000
    No. 10
    		0.203"0.875"0.053" to 0.073"AN970-3NASM97010095229A91000000
    No. 10
    		0.219"0.365"0.025" to 0.040"MS27183-47—10098032A4660000
    No. 10
    		0.219"0.438"0.036" to 0.065"MS27183-8—10098032A4690000
    No. 10
    		0.219"0.500"0.036" to 0.065"MS27183-42ASME B18.21.110098032A47200000
    No. 12
    		0.250"0.562"0.025" to 0.040"MS27183-49—10098032A4770000
    No. 12
    		0.250"0.562"0.051" to 0.080"MS27183-9ASME B18.21.110098032A48100000
    No. 12
    		0.250"0.625"0.025" to 0.040"MS27183-50—10098032A48500000
    No. 12
    		0.250"0.938"0.051" to 0.080"MS27183-48—2598032A4890000
    No. 12
    		0.250"1.000"0.051" to 0.080"MS27183-51—2598032A4920000
    1/4"
    		0.255"0.468"0.031" to 0.033"—NAS620-416L1005360N12600000
    1/4"
    		0.255"0.468"0.062" to 0.064"—NAS620-4161005360N12700000
    1/4"
    		0.260"0.531"0.052" to 0.072"MS20002-4—2591922A30400000
    1/4"
    		0.265"0.500"0.029" to 0.035"AN960-416LNAS1149-F0432P10095229A4200000
    1/4"
    		0.265"0.500"0.059" to 0.067"AN960-416NAS1149-F0463P10095229A4300000
    1/4"
    		0.265"1.125"0.053" to 0.073"AN970-4NASM9705095229A92000000
    1/4"
    		0.281"0.625"0.051" to 0.080"MS27183-10ASME B18.21.110098032A49500000
    1/4"
    		0.281"0.734"0.051" to 0.080"MS27183-52—10098032A49800000
    1/4"
    		0.312"0.500"0.027" to 0.048"MS27183-54—5098032A33100000
    1/4"
    		0.312"0.875"0.051" to 0.075"MS27183-53—2598032A33200000
    1/4"
    		0.313"0.734"0.051" to 0.080"MS27183-11ASME B18.21.15098032A50100000
    5/16"
    		0.324"0.593"0.052" to 0.072"MS20002-5—2591922A30500000
    5/16"
    		0.328"0.562"0.029" to 0.035"AN960-516LNAS1149-F0532P10095229A4500000
    5/16"
    		0.328"0.562"0.059" to 0.067"AN960-516NAS1149-F0563P10095229A4600000
    5/16"
    		0.328"1.375"0.053" to 0.073"AN970-5NASM9705095229A93000000
    5/16"
    		0.344"0.688"0.051" to 0.080"MS27183-12ASME B18.21.110098032A50500000
    5/16"
    		0.375"0.625"0.027" to 0.048"MS27183-56—5098032A3340000
    5/16"
    		0.375"0.734"0.064" to 0.094"MS27183-55—5098032A33500000
    5/16"
    		0.375"0.875"0.064" to 0.104"MS27183-13ASME B18.21.15098032A5090000
    3/8"
    		0.385"0.687"0.052" to 0.072"MS20002-6—2591922A30600000
    3/8"
    		0.390"0.625"0.029" to 0.035"AN960-616LNAS1149-F0632P10095229A4800000
    3/8"
    		0.390"0.625"0.059" to 0.067"AN960-616NAS1149-F0663P10095229A49000000
    3/8"
    		0.390"1.625"0.053" to 0.073"AN970-6NASM9702595229A94000000
    3/8"
    		0.406"0.812"0.051" to 0.080"MS27183-14ASME B18.21.15098032A5140000
    3/8"
    		0.406"0.875"0.051" to 0.070"MS27183-57—5098032A34200000
    3/8"
    		0.412"0.625"0.025" to 0.040"MS27183-58—5098032A3410000
    3/8"
    		0.438"0.875"0.051" to 0.080"MS27183-60—5098032A34300000
    3/8"
    		0.438"1.365"0.064" to 0.104"MS27183-59—1098032A34400000
    3/8"
    		0.438"1.625"0.051" to 0.104"MS27183-61—1098032A34500000
    7/16"
    		0.438"1.000"0.064" to 0.104"MS27183-15—5098032A33700000
    7/16"
    		0.451"0.781"0.052" to 0.072"MS20002-7—2591922A30700000
    7/16"
    		0.453"0.750"0.029" to 0.035"AN960-716LNAS1149-F0732P10095229A51000000
    7/16"
    		0.453"0.750"0.059" to 0.067"AN960-716NAS1149-F0763P10095229A52000000
    7/16"
    		0.453"1.812"0.099" to 0.119"AN970-7NASM9701095229A53000000
    7/16"
    		0.469"0.734"0.051" to 0.080"MS27183-62—5098032A33600000
    7/16"
    		0.469"0.922"0.051" to 0.080"MS27183-16ASME B18.21.15098032A33800000
    7/16"
    		0.500"1.250"0.064" to 0.104"MS27183-17ASME B18.21.15098032A33900000
    1/2"
    		0.515"0.875"0.029" to 0.035"AN960-816LNAS1149-F0832P10095229A54000000
    1/2"
    		0.515"0.875"0.052" to 0.072"MS20002-8—2591922A30800000
    1/2"
    		0.515"0.875"0.059" to 0.067"AN960-816NAS1149-F0863P10095229A55000000
    1/2"
    		0.515"2.000"0.099" to 0.119"AN970-8NASM9701095229A96000000
    1/2"
    		0.531"1.062"0.074" to 0.121"MS27183-18ASME B18.21.12598032A34600000
    1/2"
    		0.562"1.375"0.086" to 0.132"MS27183-19ASME B18.21.11098032A3470000
    9/16"
    		0.578"1.062"0.059" to 0.067"AN960-916NAS1149-F0963P5095229A58000000
    9/16"
    		0.578"2.188"0.115" to 0.135"AN970-9NASM970595229A9700000
    9/16"
    		0.579"0.968"0.052" to 0.072"MS20002-9—2591922A30900000
    9/16"
    		0.594"1.156"0.074" to 0.121"MS27183-20ASME B18.21.12598032A34800000
    5/8"
    		0.640"1.188"0.029" to 0.035"AN960-1016LNAS1149-F1032P5095229A6000000
    5/8"
    		0.640"1.188"0.059" to 0.067"AN960-1016NAS1149-F1063P5095229A61000000
    5/8"
    		0.640"2.375"0.115" to 0.135"AN970-10NASM970595229A56000000
    5/8"
    		0.643"1.062"0.052" to 0.072"MS20002-10—1091922A31100000
    5/8"
    		0.656"1.312"0.074" to 0.121"MS27183-21ASME B18.21.12598032A35100000
    5/8"
    		0.656"2.125"0.080" to 0.115"MS27183-63—598032A34900000
    5/8"
    		0.688"1.750"0.108" to 0.160"MS27183-22ASME B18.21.11098032A35200000
    3/4"
    		0.765"1.312"0.028" to 0.036"AN960-1216LNAS1149-F1232P5095229A11100000
    3/4"
    		0.765"1.312"0.086" to 0.094"AN960-1216LNAS1149-F1290P1095229A11200000
    3/4"
    		0.770"1.250"0.052" to 0.072"MS20002-12—1091922A31200000
    3/4"
    		0.812"1.469"0.108" to 0.160"MS27183-23ASME B18.21.11098032A35300000
    3/4"
    		0.812"2.000"0.122" to 0.177"MS27183-24ASME B18.21.1598032A35400000
    7/8"
    		0.890"1.500"0.028" to 0.036"AN960-1416LNAS1149-F1432P2595229A11500000
    7/8"
    		0.890"1.500"0.059" to 0.067"—NAS1149-F1463P1095229A11600000
    7/8"
    		0.890"1.500"0.086" to 0.094"AN960-1416NAS1149-F1490P1095229A11700000
    7/8"
    		0.897"1.437"0.052" to 0.072"MS20002-14—1091922A31300000
    7/8"
    		0.938"1.750"0.108" to 0.160"MS27183-25ASME B18.21.11098032A37100000
    7/8"
    		0.938"2.250"0.136" to 0.192"MS27183-26ASME B18.21.1598032A35600000
    1"
    		1.015"1.750"0.028" to 0.036"AN960-1616LNAS1149-F1632P1095229A11300000
    1"
    		1.015"1.750"0.086" to 0.094"AN960-1616NAS1149-F1690P1095229A11400000
    1"
    		1.025"1.625"0.052" to 0.072"MS20002-16—591922A31400000
    1"
    		1.062"2.000"0.108" to 0.160"MS27183-27ASME B18.21.11098032A35700000
    1"
    		1.062"2.500"0.136" to 0.192"MS27183-28ASME B18.21.1198032A3580000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"MS27183-29ASME B18.21.1198032A3590000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"MS27183-30ASME B18.21.1198032A3610000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"MS27183-31ASME B18.21.1198032A3620000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"MS27183-32ASME B18.21.1198032A3630000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"MS27183-33ASME B18.21.1198032A36400000
    1 3/4"
    		1.875"4.000"0.153" to 0.213"MS27183-34ASME B18.21.1198032A36500000
    1 7/8"
    		2.000"4.250"0.153" to 0.213"MS27183-35ASME B18.21.1198032A36600000
    2"
    		2.125"4.500"0.153" to 0.213"MS27183-36ASME B18.21.1198032A36700000
     
    AluminumAbout Aluminum
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    One-third the weight of steel, these washers are commonly used in robotics, automation, and other applications that have weight limits. They're an alternative to stainless steel for rust resistance.
    High-Strength Zinc-Yellow-Chromate-Plated 2024 Aluminum—A winning combination of strength and corrosion resistance. These washers are as strong as steel and withstand rust better than unplated 2024 aluminum.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    High-Strength Zinc-Yellow-Chromate-Plated 2024 Aluminum
    No. 2
    		0.099"0.250"0.013" to 0.019"AN960-JD2LNAS1149-DN216J10099018A111000000
    No. 3
    		0.105"0.250"0.013" to 0.019"AN960-JD3LNAS1149-DN316J10099018A11200000
    No. 3
    		0.105"0.250"0.028" to 0.036"AN960-JD3NAS1149-DN332J10099018A11300000
    No. 4
    		0.125"0.313"0.013" to 0.019"AN960-JD4LNAS1149-DN416J10094589A1500000
    No. 4
    		0.125"0.313"0.028" to 0.036"AN960-JD4NAS1149-DN432J10094589A1600000
    No. 5
    		0.140"0.438"0.013" to 0.019"—NAS1149-DN516J10099018A11600000
    No. 5
    		0.140"0.438"0.028" to 0.036"—NAS1149-DN532J10099018A11700000
    No. 6
    		0.149"0.375"0.013" to 0.019"AN960-JD6LNAS1149-DN616J10094589A2000000
    No. 6
    		0.149"0.375"0.028" to 0.036"AN960-JD6NAS1149-DN632J10094589A2100000
    No. 8
    		0.174"0.375"0.013" to 0.019"AN960-JD8LNAS1149-DN816J10094589A2200000
    No. 8
    		0.174"0.375"0.028" to 0.036"AN960-JD8NAS1149-DN832J10094589A23000000
    No. 10
    		0.203"0.438"0.013" to 0.019"AN960-JD10LLNAS1149-D0316J10099018A12300000
    No. 10
    		0.203"0.438"0.028" to 0.036"AN960-JD10LNAS1149-D0332J10094589A2600000
    No. 10
    		0.203"0.438"0.057" to 0.069"AN960-JD10NAS1149-D0363J10094589A27000000
    1/4"
    		0.265"0.500"0.013" to 0.019"AN960-JD416LNAS1149-D0416J5099018A1260000
    1/4"
    		0.265"0.500"0.028" to 0.036"—NAS1149-D0432J10094589A30000000
    1/4"
    		0.265"0.500"0.057" to 0.069"AN960-JD416NAS1149-D0463J5094589A3100000
    5/16"
    		0.328"0.562"0.028" to 0.036"—NAS1149-D0532J5099018A12900000
    5/16"
    		0.328"0.563"0.013" to 0.019"AN960-JD516LNAS1149-D0516J5094589A3200000
    5/16"
    		0.328"0.563"0.057" to 0.069"AN960-JD516NAS1149-D0563J5094589A34000000
    3/8"
    		0.390"0.625"0.013" to 0.019"AN960-JD616LNAS1149-D0616J5094589A3500000
    3/8"
    		0.390"0.625"0.028" to 0.036"—NAS1149-D0632J2599018A1330000
    3/8"
    		0.390"0.625"0.057" to 0.069"AN960-JD616NAS1149-D0663J2594589A3700000
    7/16"
    		0.453"0.750"0.013" to 0.019"AN960-JD716LNAS1149-D0716J5099018A13500000
    7/16"
    		0.453"0.750"0.028" to 0.036"—NAS1149-D0732J2099018A13600000
    7/16"
    		0.453"0.750"0.057" to 0.069"AN960-JD716NAS1149-D0763J2599018A13700000
    1/2"
    		0.515"0.875"0.013" to 0.019"AN960-JD816LNAS1149-D0816J2099018A13800000
    1/2"
    		0.515"0.875"0.028" to 0.036"—NAS1149-D0832J2594589A4200000
    1/2"
    		0.515"0.875"0.057" to 0.069"AN960-JD816NAS1149-D0863J2594589A43000000
    9/16"
    		0.578"1.062"0.013" to 0.019"AN960-JD916LNAS1149-D0916J2099018A14200000
    9/16"
    		0.578"1.062"0.028" to 0.036"—NAS1149-D0932J1099018A1430000
    9/16"
    		0.578"1.062"0.057" to 0.069"AN960-JD916NAS1149-D0963J1099018A1440000
    5/8"
    		0.640"1.188"0.013" to 0.019"AN960-JD1016LNAS1149-D1016J2099018A14500000
    5/8"
    		0.640"1.188"0.028" to 0.036"—NAS1149-D1032J1099018A14600000
    5/8"
    		0.640"1.188"0.057" to 0.069"AN960-JD1016NAS1149-D1063J1099018A14700000
    3/4"
    		0.765"1.312"0.013" to 0.019"AN960-JD1216LNAS1149-D1216J1099018A14800000
    3/4"
    		0.765"1.312"0.028" to 0.036"—NAS1149-D1232J1099018A14900000
    3/4"
    		0.765"1.312"0.083" to 0.097"AN960-JD1216NAS1149-D1290J599018A15100000
    7/8"
    		0.890"1.500"0.013" to 0.019"AN960-JD1416LNAS1149-D1416J1099018A15200000
    7/8"
    		0.890"1.500"0.028" to 0.036"—NAS1149-D1432J1099018A15300000
    7/8"
    		0.890"1.500"0.083" to 0.097"AN960-JD1416NAS1149-D1490J599018A15400000
    1"
    		1.015"1.750"0.013" to 0.019"AN960-JD1616LNAS1149-D1616J1099018A15500000
    1"
    		1.015"1.750"0.028" to 0.036"—NAS1149-D1632J599018A1560000
    1 1/16"
    		1.078"1.812"0.013" to 0.019"AN960-JD1716LNAS1149-D1716J599018A1570000
    1 1/16"
    		1.078"1.812"0.028" to 0.036"—NAS1149-D1732J599018A1580000
    1 1/16"
    		1.078"1.812"0.083" to 0.097"—NAS1149-D1790J599018A15900000
    1 1/8"
    		1.140"1.875"0.013" to 0.019"AN960-JD1816LNAS1149-D1816J599018A1610000
    1 5/16"
    		1.328"2.062"0.013" to 0.019"AN960-JD2116LNAS1149-D2116J1099018A1620000
     
    Brass
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    Softer than most metals, brass washers won't damage other fastening components.
    Brass—With a warm, polished look, these washers are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.
    Black-Oxide Brass—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to salt water and harsh chemicals.
    Conductive Tin-Plated Brass—An economical alternative to copper. The tin plating improves the conductivity of these washers, so they're good for securing electrical equipment inside panels and enclosures.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Brass
    3/4"
    		0.765"1.312"0.011" to 0.021"—NAS1149-B1216H1098587A131000000
    3/4"
    		0.765"1.312"0.028" to 0.036"—NAS1149-B1232H598587A13200000
    3/4"
    		0.765"1.312"0.055" to 0.071"—NAS1149-B1263H598587A13300000
     
    Black-Oxide Brass
    No. 2
    		0.094"0.250"0.016" to 0.025"MS15795-902—1098102A1120000
    No. 4
    		0.125"0.250"0.017" to 0.028"MS15795-903—1098102A1130000
    No. 4
    		0.125"0.312"0.025" to 0.040"MS15795-904—1098102A11400000
    No. 5
    		0.141"0.312"0.024" to 0.032"MS15795-944—1098102A11500000
    No. 6
    		0.156"0.312"0.027" to 0.048"MS15795-905—1098102A11700000
    No. 6
    		0.156"0.375"0.036" to 0.065"MS15795-906—1098102A11800000
    No. 8
    		0.188"0.375"0.036" to 0.065"MS15795-907—1098102A11900000
    No. 8
    		0.188"0.438"0.036" to 0.065"MS15795-941—1098102A12100000
    No. 10
    		0.203"0.406"0.036" to 0.045"MS15795-946—1098102A12200000
    No. 10
    		0.219"0.438"0.036" to 0.065"MS15795-908—1098102A12300000
    No. 10
    		0.219"0.469"0.036" to 0.065"MS15795-947—1098102A12400000
    No. 12
    		0.250"0.438"0.013" to 0.020"MS15795-948—1098102A12600000
    No. 12
    		0.250"0.500"0.036" to 0.065"MS15795-949—1098102A12700000
    No. 12
    		0.250"0.562"0.051" to 0.080"MS15795-909—1098102A12800000
    1/4"
    		0.281"0.625"0.051" to 0.080"MS15795-910—1098102A12900000
    1/4"
    		0.312"0.734"0.051" to 0.080"MS15795-911—1098102A13100000
    5/16"
    		0.344"0.688"0.051" to 0.080"MS15795-912—1098102A13200000
    5/16"
    		0.375"0.875"0.035" to 0.045"MS15795-951—1098102A13300000
    5/16"
    		0.375"0.875"0.064" to 0.104"MS15795-913—1098102A13400000
    3/8"
    		0.406"0.688"0.024" to 0.034"MS15795-952—1098102A13500000
    3/8"
    		0.406"0.812"0.051" to 0.080"MS15795-914—1098102A13600000
    3/8"
    		0.438"1.000"0.064" to 0.104"MS15795-915—198102A1370000
    7/16"
    		0.469"0.922"0.051" to 0.080"MS15795-916—198102A1380000
    7/16"
    		0.500"1.250"0.064" to 0.104"MS15795-917—198102A1390000
    1/2"
    		0.531"1.062"0.074" to 0.121"MS15795-918—198102A1410000
    5/8"
    		0.688"1.750"0.108" to 0.160"MS15795-921—198102A14600000
    3/4"
    		0.812"1.469"0.108" to 0.160"MS15795-922—198102A1470000
    1"
    		1.062"2.000"0.108" to 0.160"MS15795-926—198102A15100000
     
    Conductive Tin-Plated Brass
    No. 4
    		0.125"0.312"0.022" to 0.042"AN961-4T—5091832A10900000
    No. 6
    		0.149"0.375"0.022" to 0.042"AN961-6T—5091832A11200000
    No. 8
    		0.174"0.375"0.022" to 0.042"AN961-8T—5091832A11300000
    No. 10
    		0.203"0.438"0.022" to 0.042"AN961-10T—5091832A11400000
    1/4"
    		0.265"0.500"0.054" to 0.074"AN961-416T—2591832A11500000
    5/16"
    		0.328"0.562"0.054" to 0.074"AN961-516T—2591832A11600000
    3/8"
    		0.390"0.625"0.054" to 0.074"AN961-616T—2591832A11700000
    1/2"
    		0.515"0.875"0.054" to 0.074"AN961-816T—1091832A11800000
    5/8"
    		0.640"1.188"0.054" to 0.074"AN961-1016T—1091832A11900000
     
    Copper
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    These have the best conductivity of all our metal washers. They're often used to secure electrical connections inside breaker panels and to fasten components on printed circuit boards. They're also the softest of all our metal washers, so they won't damage screws and nuts. However, copper washers aren't as corrosion resistant as brass washers, and will develop a green patina over time.
    Low-Friction Cadmium-Plated Copper—The plating reduces friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening. It also creates a barrier against rust.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil.
    Spec.
    Pkg.
    Qty.
    Pkg.
    Low-Friction Cadmium-Plated Copper
    7/16"
    		0.443"0.683"0.048" to 0.054"AN901-4C1091818A221000000
    1/2"
    		0.505"0.745"0.048" to 0.054"AN901-5C1091818A22300000
    9/16"
    		0.568"0.808"0.048" to 0.054"AN901-6C1091818A22400000
    3/4"
    		0.755"0.995"0.048" to 0.054"AN901-8C1091818A22500000
    7/8"
    		0.880"1.120"0.048" to 0.054"AN901-10C591818A22600000
    1"
    		1.068"1.370"0.048" to 0.054"AN901-12C591818A22700000
     

    SAE Washers

    Originally designed for the automotive industry, these washers conform to SAE sizing standards. They generally have smaller diameters than USS washers to fit in cramped spots and are thinner to create more precise gaps. Washers distribute pressure under screws and nuts to protect your mounting surface.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. SAE Washers.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide 18-8 Stainless Steel
    No. 2
    		0.094"0.250"0.012" to 0.018"—10096659A124000000
    No. 3
    		0.109"0.250"0.025" to 0.040"—10096659A12500000
    No. 4
    		0.125"0.312"0.025" to 0.040"ASME B18.21.110096659A12600000
    No. 5
    		0.140"0.312"0.025" to 0.040"—10096659A12700000
    No. 6
    		0.156"0.375"0.036" to 0.065"ASME B18.21.110096659A12800000
    No. 8
    		0.188"0.438"0.036" to 0.065"ASME B18.21.15096659A1290000
    No. 10
    		0.219"0.500"0.036" to 0.065"ASME B18.21.15096659A1310000
    No. 12
    		0.250"0.562"0.051" to 0.080"ASME B18.21.15096659A13200000
    1/4"
    		0.281"0.625"0.051" to 0.080"ASME B18.21.15096659A13300000
    5/16"
    		0.344"0.688"0.051" to 0.080"ASME B18.21.12596659A1340000
    3/8"
    		0.406"0.812"0.051" to 0.080"ASME B18.21.12596659A1350000
    7/16"
    		0.469"0.922"0.051" to 0.080"ASME B18.21.12596659A13600000
    1/2"
    		0.531"1.062"0.074" to 0.121"ASME B18.21.11096659A13700000
    9/16"
    		0.594"1.156"0.074" to 0.121"ASME B18.21.11096659A13800000
    5/8"
    		0.656"1.312"0.074" to 0.121"ASME B18.21.11096659A13900000
    3/4"
    		0.812"1.500"0.108" to 0.160"—596659A14100000
    7/8"
    		0.938"1.750"0.108" to 0.160"ASME B18.21.1596659A14200000
    1"
    		1.062"2.000"0.108" to 0.160"ASME B18.21.1196659A1430000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"ASME B18.21.1196659A1440000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"ASME B18.21.1196659A1450000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"—196659A1460000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"—196659A14700000
     
    Steel
    Image of Product. Front orientation. Washers. SAE Washers.
    Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    Corrosion-Resistant Chrome-Plated Steel—The brightest, shiniest finish we offer, this plating has a mirror-like appearance that is often used in decorative applications. It resists salt water and chemicals better than zinc plating and is less likely to wear off.
    Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
    For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
    For Screw
    Size
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.110097416A11100000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.110097416A1130000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.110097416A1150000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.110097416A11900000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.110097416A12300000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.15097416A12700000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.110097416A13200000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.15097416A13500000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.12597416A13900000
    3/4"
    		0.812"1.500"0.108" to 0.160"——1097416A14200000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.11097416A14600000
     
    Corrosion-Resistant Galvanized Steel
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.110093012A1110000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.110093012A1120000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.110093012A1130000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.15093012A11400000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.15093012A11500000
    9/16"
    		0.594"1.156"0.074" to 0.121"—ASME B18.21.12593012A11600000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.12593012A11700000
    3/4"
    		0.812"1.469"0.108" to 0.160"—ASME B18.21.12593012A11800000
    7/8"
    		0.938"1.750"0.108" to 0.160"—ASME B18.21.11093012A11900000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1593012A12000000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—ASME B18.21.1593012A12100000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"—ASME B18.21.1593012A12200000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"—ASME B18.21.1193012A1230000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"—ASME B18.21.1193012A1240000
     
    Corrosion-Resistant Chrome-Plated Steel
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.12593960A14000000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.12593960A16000000
    7/16"
    		0.475"0.930"0.051" to 0.080"—ASME B18.21.11093960A1700000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.11093960A1800000
    9/16"
    		0.600"1.162"0.074" to 0.121"—ASME B18.21.11093960A19000000
     
    Black Super-Corrosion-Resistant-Coated Steel
    No. 4
    		0.125"0.312"0.020" to 0.040"——1091434A33500000
    No. 5
    		0.141"0.281"0.020" to 0.040"——1091434A34500000
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.11091434A35500000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.11091434A36500000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.11091434A37500000
    No. 12
    		0.250"0.562"0.051" to 0.080"—ASME B18.21.11091434A38500000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.11091434A11500000
    1/4"
    		0.281"0.625"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1591434A1160000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.11091434A13500000
    5/16"
    		0.344"0.688"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1591434A1170000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.11091434A15500000
    3/8"
    		0.406"0.813"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1591434A1180000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.11091434A39500000
    7/16"
    		0.469"0.922"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1591434A1190000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.11091434A17500000
    1/2"
    		0.531"1.063"0.100" to 0.116"SAE Grade 8
    		ASME B18.21.1591434A12000000
    9/16"
    		0.594"1.156"0.074" to 0.121"—ASME B18.21.11091434A41500000
    9/16"
    		0.594"1.188"0.100" to 0.116"SAE Grade 8
    		ASME B18.21.1591434A12100000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.11091434A19500000
    5/8"
    		0.656"1.313"0.122" to 0.138"SAE Grade 8
    		ASME B18.21.1591434A12200000
    3/4"
    		0.812"1.469"0.108" to 0.160"—ASME B18.21.1591434A2150000
    3/4"
    		0.813"1.469"0.122" to 0.138"SAE Grade 8
    		ASME B18.21.1191434A1230000
    7/8"
    		0.938"1.750"0.108" to 0.160"—ASME B18.21.1591434A23500000
    7/8"
    		0.938"1.750"0.136" to 0.152"SAE Grade 8
    		ASME B18.21.1191434A1240000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1591434A25500000
    1"
    		1.063"2.000"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1191434A1250000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—ASME B18.21.1591434A42500000
    1 1/4"
    		1.375"2.500"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1191434A1260000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"—ASME B18.21.1191434A4350000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"—ASME B18.21.1191434A4450000
    1 1/2"
    		1.625"3.000"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1191434A12700000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"—ASME B18.21.1191434A4550000
    1 3/4"
    		1.875"3.375"0.178" to 0.196"SAE Grade 8
    		ASME B18.21.1191434A12800000
    2"
    		2.125"3.750"0.178" to 0.196"SAE Grade 8
    		ASME B18.21.1191434A12900000
     
    Brass
    Image of Product. Front orientation. Washers. SAE Washers.
    Softer than most metals, brass washers won't damage other fastening components.
    Nickel-Plated Brass—The nickel plating offers better corrosion resistance than plain brass to stand up to solvents, salt water, and chemicals. The plating can wear off over time, so these washers are not recommended for applications that experience a lot of friction or wear.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Nickel-Plated Brass
    No. 2
    		0.094"0.250"0.012" to 0.018"10090231A133000000
    No. 4
    		0.125"0.312"0.025" to 0.040"5090231A1350000
    No. 6
    		0.156"0.375"0.036" to 0.065"5090231A1370000
    No. 10
    		0.219"0.500"0.036" to 0.065"5090231A13900000
    No. 12
    		0.250"0.562"0.051" to 0.080"2590231A14000000
    1/4"
    		0.281"0.625"0.051" to 0.080"2590231A14100000
    5/16"
    		0.344"0.688"0.051" to 0.080"1090231A1420000
    3/8"
    		0.406"0.812"0.051" to 0.080"1090231A1430000
    7/16"
    		0.469"0.922"0.051" to 0.080"1090231A1440000
    1/2"
    		0.531"1.062"0.074" to 0.121"590231A1450000
    3/4"
    		0.812"1.500"0.108" to 0.160"190231A1480000
     

    USS Washers

    These washers meet USS sizing specifications and typically have larger diameters than SAE washers. As a result, they accommodate larger screws and nuts and distribute pressure across a wider surface area. They are also thicker, so they withstand heavier loads and span wider gaps when used as spacers.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. USS Washers.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide 18-8 Stainless Steel
    1/4"
    		0.312"0.750"0.051" to 0.080"—2593852A17100000
    5/16"
    		0.375"0.875"0.064" to 0.104"ASME B18.21.12593852A17200000
    3/8"
    		0.438"1.000"0.064" to 0.104"ASME B18.21.11093852A17300000
    7/16"
    		0.500"1.250"0.064" to 0.104"ASME B18.21.11093852A17400000
    1/2"
    		0.562"1.375"0.086" to 0.132"ASME B18.21.1593852A17500000
    9/16"
    		0.625"1.500"0.086" to 0.132"—593852A17600000
    5/8"
    		0.688"1.750"0.108" to 0.160"ASME B18.21.1193852A1770000
    3/4"
    		0.812"2.000"0.122" to 0.177"ASME B18.21.1193852A1780000
    7/8"
    		0.938"2.250"0.136" to 0.192"ASME B18.21.1193852A1790000
    1"
    		1.062"2.500"0.136" to 0.192"ASME B18.21.1193852A1810000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"ASME B18.21.1193852A1820000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"ASME B18.21.1193852A18300000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"ASME B18.21.1193852A18400000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"ASME B18.21.1193852A16500000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"ASME B18.21.1193852A16200000
    1 3/4"
    		1.875"4.000"0.153" to 0.213"ASME B18.21.1193852A16100000
    1 7/8"
    		2.000"4.250"0.153" to 0.213"ASME B18.21.1193852A16300000
    2"
    		2.125"4.500"0.153" to 0.213"ASME B18.21.1193852A16400000
     
    Steel
    Image of Product. Front orientation. Washers. USS Washers.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant Galvanized Steel
    1/4"
    		0.312"0.750"0.051" to 0.080"ASME B18.21.110098970A12900000
    5/16"
    		0.375"0.875"0.064" to 0.104"ASME B18.21.110098970A13000000
    3/8"
    		0.438"1.000"0.064" to 0.104"ASME B18.21.110098970A13100000
    7/16"
    		0.500"1.250"0.064" to 0.104"ASME B18.21.110098970A13200000
    1/2"
    		0.562"1.375"0.086" to 0.132"ASME B18.21.15098970A13300000
    9/16"
    		0.625"1.469"0.086" to 0.132"ASME B18.21.12598970A3110000
    5/8"
    		0.688"1.750"0.108" to 0.160"ASME B18.21.12598970A13500000
    3/4"
    		0.812"2.000"0.122" to 0.177"ASME B18.21.12598970A13600000
    7/8"
    		0.938"2.250"0.136" to 0.192"ASME B18.21.11098970A13700000
    1"
    		1.062"2.500"0.136" to 0.192"ASME B18.21.11098970A13800000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"ASME B18.21.11098970A31200000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"ASME B18.21.11098970A14100000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"ASME B18.21.1598970A31300000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"ASME B18.21.1598970A14300000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"ASME B18.21.1598970A31400000
    1 3/4"
    		1.875"4.000"0.153" to 0.213"ASME B18.21.1598970A31500000
    1 7/8"
    		2.000"4.250"0.153" to 0.213"ASME B18.21.1598970A31600000
    2"
    		2.125"4.500"0.153" to 0.213"ASME B18.21.1198970A31700000
    2 1/4"
    		2.375"4.750"0.193" to 0.248"ASME B18.21.1198970A3180000
    2 1/2"
    		2.625"5.000"0.210" to 0.280"ASME B18.21.1198970A3190000
    2 3/4"
    		2.875"5.250"0.228" to 0.310"ASME B18.21.1198970A33100000
    3"
    		3.125"5.500"0.249" to 0.327"ASME B18.21.1198970A3320000
     
    Black Super-Corrosion-Resistant-Coated Steel
    1/4"
    		0.312"0.750"0.051" to 0.080"ASME B18.21.11096582A30400000
    5/16"
    		0.375"0.875"0.064" to 0.104"ASME B18.21.11096582A32100000
    3/8"
    		0.438"1.000"0.064" to 0.104"ASME B18.21.11096582A33800000
    7/16"
    		0.500"1.250"0.064" to 0.104"ASME B18.21.11096582A43100000
    1/2"
    		0.562"1.375"0.086" to 0.132"ASME B18.21.1596582A3520000
    9/16"
    		0.625"1.469"0.086" to 0.132"ASME B18.21.1596582A43200000
    5/8"
    		0.688"1.750"0.108" to 0.160"ASME B18.21.1596582A3710000
    3/4"
    		0.812"2.000"0.122" to 0.177"ASME B18.21.1596582A38900000
    7/8"
    		0.938"2.250"0.136" to 0.192"ASME B18.21.1596582A40600000
    1"
    		1.062"2.500"0.136" to 0.192"ASME B18.21.1596582A42300000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"ASME B18.21.1196582A4330000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"ASME B18.21.1196582A4340000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"ASME B18.21.1196582A4350000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"ASME B18.21.1196582A4360000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"ASME B18.21.1196582A4370000
    1 3/4"
    		1.875"4.000"0.153" to 0.213"ASME B18.21.1196582A4380000
    1 7/8"
    		2.000"4.250"0.153" to 0.213"ASME B18.21.1196582A4390000
    2"
    		2.125"4.500"0.153" to 0.213"ASME B18.21.1196582A44100000
    2 1/4"
    		2.375"4.750"0.193" to 0.248"ASME B18.21.1196582A44200000
    2 1/2"
    		2.625"5.000"0.210" to 0.280"ASME B18.21.1196582A44300000
    2 3/4"
    		2.875"5.250"0.228" to 0.310"ASME B18.21.1196582A44400000
    3"
    		3.125"5.500"0.249" to 0.327"ASME B18.21.1196582A44500000
     

    Undersized Washers

    These washers distribute pressure evenly under fasteners with narrow heads, such as cheese and socket head screws. They have smaller diameters than general purpose washers of the same screw size.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. Undersized Washers.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Black-Oxide 18-8 Stainless Steel
    5/8"
    		0.656"1.375"0.060" to 0.090"1090377A186000000
     
    Steel
    Image of Product. Front orientation. Washers. Undersized Washers.
    Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
    M12
    		13.022.02.5 to 3.41098035A10700000
    M14
    		15.025.02.5 to 3.41098035A1080000
    M16
    		17.028.03.0 to 3.91098035A1090000
    M20
    		21.035.03.0 to 3.91098035A11000000
    M24
    		25.040.03.5 to 4.4598035A1110000
    M30
    		31.044.03.5 to 4.4598035A11200000
    M36
    		37.050.04.5 to 5.4598035A11300000
     

    Structural Washers

    Distribute pressure under structural screws and nuts in columns, joists, and I-beams. These thick washers are tested and certified to meet industry standards for handling high-stress loads.
    Steel
    Image of Product. Front orientation. Washers. Structural Washers.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
    For Screw
    Size
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Steel
    M12
    		13.0 mm24.0 mm2.7 mm to 3.3 mmISO Class 10.9
    		DIN 6916, ISO 74161091144A12200000
    M14
    		15.0 mm28.0 mm2.7 mm to 3.3 mmISO Class 10.9
    		DIN 6916, ISO 74161091144A12300000
    M16
    		17.0 mm30.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 7416591144A1240000
    M20
    		21.0 mm37.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 7416591144A1250000
    M22
    		23.0 mm39.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 7416591144A12600000
    M24
    		25.0 mm44.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 7416191144A1270000
    M27
    		28.0 mm50.0 mm4.4 mm to 5.6 mmISO Class 10.9
    		DIN 6916, ISO 7416191144A1280000
    M30
    		31.0 mm56.0 mm4.4 mm to 5.6 mmISO Class 10.9
    		DIN 6916, ISO 7416191144A12900000
    M36
    		37.0 mm66.0 mm5.4 mm to 6.6 mmISO Class 10.9
    		DIN 6916, ISO 7416191144A13100000
     
    Corrosion-Resistant Galvanized Steel
    1/2"
    		0.531"1.062"0.097" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 15098119A03300000
    5/8"
    		0.688"1.312"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12598119A03500000
    3/4"
    		0.812"1.469"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12598119A03600000
    7/8"
    		0.938"1.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11098119A0370000
    1"
    		1.062"2.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11098119A03800000
    1 1/8"
    		1.188"2.250"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11098119A04100000
    1 1/4"
    		1.375"2.500"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 11098119A04400000
    1 3/8"
    		1.531"2.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11098119A12100000
    1 1/2"
    		1.625"3.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 1598119A11100000
    1 5/8"
    		1.770"3.250"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1598119A12200000
    1 3/4"
    		1.875"3.375"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1598119A11200000
    1 7/8"
    		2.000"3.500"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198119A1230000
    2"
    		2.125"3.750"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198119A1130000
    2 1/4"
    		2.407"4.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198119A1240000
    2 1/2"
    		2.657"4.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198119A11400000
    2 3/4"
    		2.907"5.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198119A12500000
    3"
    		3.157"5.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198119A11500000
    M12
    		13.0 mm24.0 mm2.7 mm to 3.3 mmISO Class 10.9
    		DIN 6916, ISO 74162591144A11100000
    M14
    		15.0 mm28.0 mm2.7 mm to 3.3 mmISO Class 10.9
    		DIN 6916, ISO 74161091144A11800000
    M16
    		17.0 mm30.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 74161091144A1120000
    M20
    		21.0 mm37.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 74161091144A11300000
    M22
    		23.0 mm39.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 7416591144A11400000
    M24
    		25.0 mm44.0 mm3.7 mm to 4.3 mmISO Class 10.9
    		DIN 6916, ISO 7416591144A11500000
    M27
    		28.0 mm50.0 mm4.4 mm to 5.6 mmISO Class 10.9
    		DIN 6916, ISO 7416191144A1160000
    M30
    		31.0 mm56.0 mm4.4 mm to 5.6 mmISO Class 10.9
    		DIN 6916, ISO 7416191144A1170000
     
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