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    135 Products

    General Purpose Washers

    Your go-to metal washer for every screw size. Washers take the pressure off nuts and screws to protect mounting surfaces.
    Steel
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Image of Specification. Front orientation. Washers. General Purpose Washers.
    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 Super-Corrosion-Resistant-Coated Steel
    1/4"
    		0.312"0.750"0.055" to 0.072"SAE Grade 8
    		—Material Certificate
    		1098026A111000000
    5/16"
    		0.375"0.875"0.064" to 0.080"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		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 B18.21.1Material Certificate
    		598026A11500000
    9/16"
    		0.625"1.500"0.097" to 0.121"SAE Grade 8
    		—Material Certificate
    		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
    M6
    		6.4 mm12.0 mm1.4 mm to 1.8 mmClass 10.9DIN 125—1093413A34100000
    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
    M8
    		8.4 mm16.0 mm1.4 mm to 1.8 mmClass 10.9DIN 125—593413A3420000
    M10
    		10.5 mm20.0 mm1.8 mm to 2.2 mm—DIN 125, ISO 7089—593413A1700000
    M10
    		10.5 mm20.0 mm1.8 mm to 2.2 mmClass 10.9DIN 125—593413A3430000
    M12
    		13.0 mm24.0 mm2.3 mm to 2.7 mm—DIN 125, ISO 7089—593413A1800000
    M12
    		13.0 mm24.0 mm2.3 mm to 2.7 mmClass 10.9DIN 125—593413A34400000
    M14
    		15.0 mm28.0 mm2.3 mm to 2.7 mm—DIN 125, ISO 7089—593413A1900000
    M16
    		17.0 mm30.0 mm2.7 mm to 3.3 mm—DIN 125, ISO 7089—593413A3310000
    M18
    		19.0 mm34.0 mm2.7 mm to 3.3 mm—DIN 125, ISO 7089—593413A3320000
    M20
    		21.0 mm37.0 mm2.7 mm to 3.3 mm—DIN 125, ISO 7089—593413A3330000
    M24
    		25.0 mm44.0 mm3.3 mm to 4.3 mm—DIN 125, ISO 7089—193413A3340000
     

    Oversized Washers

    Cover oversized holes or use these washers as spacers and levelers. Compared to general purpose washers, these have a larger diameter or thickness.
    Steel
    Image of Product. Front orientation. Contains Annotated. Washers. Oversized Washers.
    Image of Specification. Front orientation. Washers. Oversized Washers.
    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 Super-Corrosion-Resistant-Coated Steel
    3/16"
    		0.219"1.000"0.051" to 0.084"———1093413A200000000
    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
    		—Material Certificate
    		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
     

    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.
    Steel
    Image of Product. Front orientation. Washers. SAE Washers.
    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 Super-Corrosion-Resistant-Coated Steel
    No. 4
    		0.125"0.312"0.020" to 0.040"——1091434A335000000
    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
     

    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.
    Steel
    Image of Product. Front orientation. Washers. USS Washers.
    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 Super-Corrosion-Resistant-Coated Steel
    1/4"
    		0.312"0.750"0.051" to 0.080"—ASME B18.21.11096582A304000000
    1/4"
    		0.312"0.750"0.051" to 0.080"SAE Grade 8
    		—1098189A45200000
    5/16"
    		0.375"0.875"0.064" to 0.104"—ASME B18.21.11096582A32100000
    5/16"
    		0.375"0.875"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.11098189A47200000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.11096582A33800000
    3/8"
    		0.438"1.000"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1598189A4740000
    7/16"
    		0.500"1.250"0.064" to 0.104"—ASME B18.21.11096582A43100000
    7/16"
    		0.500"1.250"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1598189A47800000
    1/2"
    		0.562"1.375"0.086" to 0.132"—ASME B18.21.1596582A3520000
    1/2"
    		0.562"1.375"0.086" to 0.132"SAE Grade 8
    		ASME B18.21.1598189A49100000
    9/16"
    		0.625"1.469"0.086" to 0.132"—ASME B18.21.1596582A43200000
    9/16"
    		0.625"1.500"0.086" to 0.132"SAE Grade 8
    		—598189A52500000
    5/8"
    		0.688"1.750"0.108" to 0.160"—ASME B18.21.1596582A3710000
    5/8"
    		0.688"1.750"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1198189A5580000
    3/4"
    		0.812"2.000"0.122" to 0.177"—ASME B18.21.1596582A38900000
    3/4"
    		0.812"2.000"0.122" to 0.177"SAE Grade 8
    		ASME B18.21.1198189A5600000
    7/8"
    		0.938"2.250"0.136" to 0.192"—ASME B18.21.1596582A40600000
    7/8"
    		0.938"2.250"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1198189A5660000
    1"
    		1.062"2.500"0.136" to 0.192"—ASME B18.21.1596582A42300000
    1"
    		1.062"2.500"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1198189A6030000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"—ASME B18.21.1196582A4330000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1198189A61800000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"—ASME B18.21.1196582A4340000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1198189A62600000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"—ASME B18.21.1196582A4350000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"SAE Grade 8
    		—198189A63000000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"—ASME B18.21.1196582A4360000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"SAE Grade 8
    		—198189A65400000
    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

    Image of Product. Front orientation. Washers. 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.
    Steel
    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,
    mm
    OD,
    mm
    Thk., mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black Super-Corrosion-Resistant-Coated Steel
    M6
    		6.411.01.4 to 1.8DIN 433, ISO 70921093413A335000000
    M8
    		8.415.01.4 to 1.8DIN 433, ISO 70921093413A33600000
    M10
    		10.518.01.4 to 1.8DIN 433, ISO 70921093413A33700000
    M12
    		13.020.01.8 to 2.2DIN 433, ISO 70921093413A33800000
     

    Retaining Caps

    Image of Product. 1050 Spring Steel. Bottom orientation. Protective Caps. Retaining Caps.

    1050 Spring Steel

    Image of Product. Plastic. Bottom orientation. Protective Caps. Retaining Caps.

    Plastic

    Use these caps to hold components in place and protect shaft ends. Install these caps with a hammer or push them into place by hand.
    Corrosion-Resistant Coated—Corrosion-resistant-coated finish is more corrosion resistant in wet environments than zinc-plated finish. Also known as black luster.
    For
    OD
    OD
    Ht.
    Insert
    Material
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    Black Corrosion-Resistant-Coated 1050 Spring Steel
    1/4"9/16"7/32"SteelNot Rated597036A01000000
    5/16"5/8"1/4"SteelNot Rated597036A0200000
    3/8"3/4"9/32"SteelNot Rated597036A03000000
    1/2"15/16"21/64"SteelNot Rated597036A04000000
     
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