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    492 Products

    Washer Type

    Performance

    Performance

    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.
    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.
    Highly 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.
    High-Strength 17-7 PH Stainless Steel—Some of the strongest stainless steel washers we offer, these are comparable to high-strength Grade 8 steel. They won’t rust in wet and outdoor environments, but they can’t handle the harsh chemicals that 316 stainless steel can.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 2
    		0.094"0.250"0.012" to 0.018"——10096659A11600000
    No. 3
    		0.109"0.250"0.025" to 0.040"——10096659A11700000
    No. 4
    		0.125"0.312"0.025" to 0.040"ASME B18.21.1—10096659A1010000
    No. 5
    		0.140"0.312"0.025" to 0.040"——10096659A11800000
    No. 6
    		0.156"0.375"0.036" to 0.065"ASME B18.21.1Material Certificate
    		10096659A1020000
    No. 8
    		0.188"0.438"0.036" to 0.065"ASME B18.21.1Material Certificate
    		10096659A1030000
    No. 10
    		0.219"0.500"0.036" to 0.065"ASME B18.21.1Material Certificate
    		10096659A10400000
    No. 12
    		0.250"0.562"0.051" to 0.080"ASME B18.21.1Material Certificate
    		10096659A10500000
    1/4"
    		0.281"0.625"0.051" to 0.080"ASME B18.21.1Material Certificate
    		5096659A10600000
    5/16"
    		0.344"0.688"0.051" to 0.080"ASME B18.21.1Material Certificate
    		5096659A10700000
    3/8"
    		0.406"0.812"0.051" to 0.080"ASME B18.21.1Material Certificate
    		5096659A10800000
    7/16"
    		0.469"0.922"0.051" to 0.080"ASME B18.21.1Material Certificate
    		1096659A1090000
    1/2"
    		0.531"1.062"0.074" to 0.121"ASME B18.21.1Material Certificate
    		1096659A1100000
    9/16"
    		0.594"1.156"0.074" to 0.121"ASME B18.21.1—1096659A11900000
    5/8"
    		0.656"1.312"0.074" to 0.121"ASME B18.21.1Material Certificate
    		1096659A11100000
    3/4"
    		0.812"1.500"0.108" to 0.160"—Material Certificate
    		596659A11200000
    7/8"
    		0.938"1.750"0.108" to 0.160"ASME B18.21.1Material Certificate
    		596659A12100000
    1"
    		1.062"2.000"0.108" to 0.160"ASME B18.21.1Material Certificate
    		196659A1130000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"ASME B18.21.1—196659A1140000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"ASME B18.21.1—196659A1220000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"——196659A1230000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"——196659A11500000
     
    Black-Oxide 18-8 Stainless Steel
    No. 2
    		0.094"0.250"0.012" to 0.018"——10096659A12400000
    No. 3
    		0.109"0.250"0.025" to 0.040"——10096659A12500000
    No. 4
    		0.125"0.312"0.025" to 0.040"ASME B18.21.1—10096659A12600000
    No. 5
    		0.140"0.312"0.025" to 0.040"——10096659A12700000
    No. 6
    		0.156"0.375"0.036" to 0.065"ASME B18.21.1—10096659A12800000
    No. 8
    		0.188"0.438"0.036" to 0.065"ASME B18.21.1—5096659A1290000
    No. 10
    		0.219"0.500"0.036" to 0.065"ASME B18.21.1—5096659A1310000
    No. 12
    		0.250"0.562"0.051" to 0.080"ASME B18.21.1—5096659A13200000
    1/4"
    		0.281"0.625"0.051" to 0.080"ASME B18.21.1Material Certificate
    		5096659A13300000
    5/16"
    		0.344"0.688"0.051" to 0.080"ASME B18.21.1—2596659A1340000
    3/8"
    		0.406"0.812"0.051" to 0.080"ASME B18.21.1—2596659A1350000
    7/16"
    		0.469"0.922"0.051" to 0.080"ASME B18.21.1—2596659A13600000
    1/2"
    		0.531"1.062"0.074" to 0.121"ASME B18.21.1Material Certificate
    		1096659A13700000
    9/16"
    		0.594"1.156"0.074" to 0.121"ASME B18.21.1—1096659A13800000
    5/8"
    		0.656"1.312"0.074" to 0.121"ASME B18.21.1Material Certificate
    		1096659A13900000
    3/4"
    		0.812"1.500"0.108" to 0.160"——596659A14100000
    7/8"
    		0.938"1.750"0.108" to 0.160"ASME B18.21.1—596659A14200000
    1"
    		1.062"2.000"0.108" to 0.160"ASME B18.21.1—196659A1430000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"ASME B18.21.1—196659A1440000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"ASME B18.21.1—196659A1450000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"—Material Certificate
    		196659A1460000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"——196659A14700000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    No. 2
    		0.094"0.250"0.012" to 0.018"——10091950A04100000
    No. 3
    		0.109"0.250"0.025" to 0.040"——10091950A04200000
    No. 4
    		0.125"0.312"0.025" to 0.040"ASME B18.21.1—10091950A04300000
    No. 5
    		0.140"0.312"0.025" to 0.040"——10091950A04400000
    No. 6
    		0.156"0.375"0.036" to 0.065"ASME B18.21.1—10091950A04500000
    No. 8
    		0.188"0.438"0.036" to 0.065"ASME B18.21.1—10091950A04600000
    No. 10
    		0.219"0.500"0.036" to 0.065"——10091950A0270000
    No. 12
    		0.250"0.562"0.051" to 0.080"ASME B18.21.1—5091950A04700000
    1/4"
    		0.281"0.625"0.051" to 0.080"——5091950A0290000
    5/16"
    		0.344"0.688"0.051" to 0.080"——5091950A0300000
    3/8"
    		0.406"0.812"0.051" to 0.080"——5091950A0310000
    7/16"
    		0.469"0.922"0.051" to 0.080"ASME B18.21.1—2591950A04800000
    1/2"
    		0.531"1.062"0.074" to 0.121"——2591950A03300000
    9/16"
    		0.594"1.156"0.074" to 0.121"ASME B18.21.1—1091950A04900000
    5/8"
    		0.656"1.312"0.074" to 0.121"——1091950A0350000
    3/4"
    		0.812"1.500"0.108" to 0.160"—Material Certificate
    		591950A03600000
    7/8"
    		0.938"1.750"0.108" to 0.160"ASME B18.21.1—191950A0510000
    1"
    		1.062"2.000"0.108" to 0.160"ASME B18.21.1—191950A0520000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"ASME B18.21.1—191950A0530000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"ASME B18.21.1—191950A0540000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"——191950A0550000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"——191950A05600000
    2"
    		2.125"3.750"0.129" to 0.141"——191950A10100000
     
    High-Strength 17-7 PH Stainless Steel
    1/4"
    		0.281"0.625"0.051" to 0.080"ASME B18.21.1—590472A1100000
    5/16"
    		0.343"0.688"0.051" to 0.080"ASME B18.21.1—590472A1200000
    3/8"
    		0.406"0.812"0.051" to 0.080"ASME B18.21.1—590472A1300000
    5/8"
    		0.656"1.312"0.074" to 0.121"ASME B18.21.1—190472A1400000
     
    Steel
    Image of Product. Front orientation. Washers. SAE Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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.
    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.
    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.
    Highly Corrosion-Resistant Zinc-Flake-Coated Steel—With 40 times the corrosion resistance of zinc-plated steel, these withstand rust as well as 316 stainless steel. They have been tested to extreme standards, including 1,000 hours of salt spray. They are similar to Magni-coated 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.
    Zinc-Plated Steel
    No. 2
    		0.094"0.219"0.005" to 0.030"———10090126A50100000
    No. 2
    		0.094"0.219"0.005" to 0.030"———2,10090126A30300000
    No. 3
    		0.109"0.250"0.005" to 0.030"———10090126A5030000
    No. 3
    		0.109"0.250"0.005" to 0.030"———1,40090126A30400000
    No. 4
    		0.125"0.312"0.020" to 0.040"———10090126A5050000
    No. 4
    		0.125"0.312"0.020" to 0.040"———1,45090126A00500000
    No. 4
    		0.125"0.312"0.025" to 0.040"SAE Grade 5
    		——10090126A2170000
    No. 5
    		0.141"0.281"0.020" to 0.040"———10090126A5070000
    No. 5
    		0.141"0.281"0.020" to 0.040"———1,10090126A30600000
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.1—10090126A5090000
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.1—76590126A00700000
    No. 6
    		0.156"0.375"0.036" to 0.065"SAE Grade 5
    		——10090126A2030000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—10090126A5120000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—55590126A00900000
    No. 8
    		0.188"0.438"0.036" to 0.065"SAE Grade 5
    		——10090126A2040000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.1—10090126A5140000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.1—43590126A0110000
    No. 10
    		0.219"0.500"0.036" to 0.065"SAE Grade 5
    		——10090126A2050000
    No. 12
    		0.250"0.562"0.051" to 0.080"—ASME B18.21.1—28090126A01300000
    No. 12
    		0.250"0.562"0.051" to 0.080"SAE Grade 5
    		——5090126A2180000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.1—22090126A0290000
    1/4"
    		0.281"0.625"0.051" to 0.080"SAE Grade 5
    		——5090126A2060000
    1/4"
    		0.281"0.625"0.051" to 0.080"SAE Grade 8
    		——2590126A2230000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.1—19090126A0300000
    5/16"
    		0.344"0.688"0.051" to 0.080"SAE Grade 5
    		—Material Certificate
    		5090126A2070000
    5/16"
    		0.344"0.688"0.051" to 0.080"SAE Grade 8
    		——2590126A2240000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.1—14090126A0310000
    3/8"
    		0.406"0.812"0.051" to 0.080"SAE Grade 5
    		——5090126A2080000
    3/8"
    		0.406"0.812"0.051" to 0.080"SAE Grade 8
    		——2590126A2250000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.1—10590126A0320000
    7/16"
    		0.469"0.922"0.051" to 0.080"SAE Grade 5
    		——5090126A20900000
    7/16"
    		0.469"0.922"0.051" to 0.080"SAE Grade 8
    		——2590126A2260000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.1—5590126A0330000
    1/2"
    		0.531"1.062"0.074" to 0.121"SAE Grade 5
    		——1090126A2110000
    1/2"
    		0.531"1.062"0.074" to 0.121"SAE Grade 8
    		——1090126A2270000
    9/16"
    		0.594"1.156"0.074" to 0.121"—ASME B18.21.1—4390126A0340000
    9/16"
    		0.594"1.156"0.074" to 0.121"SAE Grade 5
    		——590126A2190000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.1—3690126A0350000
    5/8"
    		0.656"1.312"0.074" to 0.121"SAE Grade 5
    		——1090126A2120000
    5/8"
    		0.656"1.312"0.074" to 0.121"SAE Grade 8
    		——590126A2280000
    3/4"
    		0.812"1.469"0.108" to 0.160"—ASME B18.21.1—2190126A0360000
    3/4"
    		0.812"1.469"0.108" to 0.160"SAE Grade 5
    		—Material Certificate
    		590126A21300000
    3/4"
    		0.812"1.469"0.108" to 0.160"SAE Grade 8
    		——590126A22900000
    7/8"
    		0.938"1.750"0.108" to 0.160"—ASME B18.21.1—1690126A0370000
    7/8"
    		0.938"1.750"0.108" to 0.160"SAE Grade 5
    		—Material Certificate
    		190126A2140000
    7/8"
    		0.938"1.750"0.108" to 0.160"SAE Grade 8
    		——190126A2310000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1—1290126A0380000
    1"
    		1.062"2.000"0.108" to 0.160"SAE Grade 5
    		——190126A2150000
    1"
    		1.062"2.000"0.108" to 0.160"SAE Grade 8
    		——190126A2320000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—ASME B18.21.1—990126A0390000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"SAE Grade 5
    		——190126A2210000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"—ASME B18.21.1—690126A0400000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"SAE Grade 5
    		——190126A2160000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"SAE Grade 8
    		——190126A2330000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"—ASME B18.21.1—590126A0410000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"—ASME B18.21.1—490126A0420000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"SAE Grade 5
    		——190126A2220000
     
    Zinc-Yellow-Chromate-Plated Steel
    No. 2
    		0.094"0.250"0.016" to 0.025"SAE Grade 8
    		——10090126A2010000
    No. 4
    		0.125"0.312"0.028" to 0.036"SAE Grade 8
    		ASME B18.21.1—10098023A1110000
    No. 6
    		0.156"0.375"0.036" to 0.045"SAE Grade 8
    		ASME B18.21.1—10098023A1120000
    No. 8
    		0.188"0.438"0.036" to 0.065"SAE Grade 8
    		ASME B18.21.1—10098023A1130000
    No. 10
    		0.220"0.500"0.036" to 0.065"SAE Grade 8
    		ASME B18.21.1—10098023A1140000
    No. 12
    		0.250"0.562"0.051" to 0.080"SAE Grade 8
    		——5090126A20200000
    1/4"
    		0.281"0.625"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1—10098023A0290000
    5/16"
    		0.344"0.688"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1—5098023A0300000
    3/8"
    		0.406"0.812"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1—5098023A0310000
    7/16"
    		0.469"0.922"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1—2598023A0320000
    1/2"
    		0.531"1.062"0.074" to 0.121"SAE Grade 8
    		ASME B18.21.1—2598023A0330000
    9/16"
    		0.594"1.156"0.074" to 0.121"SAE Grade 8
    		ASME B18.21.1—2598023A0340000
    5/8"
    		0.656"1.312"0.122" to 0.146"SAE Grade 8
    		——2598189A66100000
    3/4"
    		0.812"1.469"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—2098023A03600000
    7/8"
    		0.938"1.750"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—1098023A0370000
    1"
    		1.062"2.000"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—1098023A03800000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—1098023A03900000
    1 1/4"
    		1.319"2.280"0.234" to 0.266"SAE Grade 9
    		——198189A7550000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—598023A0410000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—598023A04200000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—598023A04300000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"SAE Grade 8
    		ASME B18.21.1—198023A0510000
    1 3/4"
    		1.875"3.375"0.178" to 0.196"SAE Grade 8
    		——598189A66700000
    1 7/8"
    		2.000"4.250"0.153" to 0.213"SAE Grade 8
    		ASME B18.21.1—198023A0530000
    2"
    		2.125"3.750"0.178" to 0.196"SAE Grade 8
    		——198189A6850000
     
    Black-Oxide Steel
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.1—10097416A1110000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—10097416A1130000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.1—10097416A1150000
    No. 12
    		0.250"0.562"0.051" to 0.080"———10097416A30100000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.1Material Certificate
    		10097416A11900000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.1Material Certificate
    		10097416A12300000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.1—5097416A12700000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.1—10097416A13200000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.1—5097416A13500000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.1—2597416A13900000
    3/4"
    		0.812"1.500"0.108" to 0.160"———1097416A14200000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1—1097416A14600000
     
    Steel
    No. 2
    		0.094"0.219"0.005" to 0.030"———10091083A0450000
    No. 3
    		0.109"0.250"0.005" to 0.030"———10091083A0460000
    No. 4
    		0.125"0.312"0.020" to 0.040"———1,45091083A00500000
    No. 5
    		0.141"0.281"0.020" to 0.040"———10091083A0470000
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.1—76591083A0070000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—55591083A0090000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.1—43591083A0110000
    No. 12
    		0.250"0.562"0.051" to 0.080"—ASME B18.21.1—28091083A0130000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.1—22091083A0290000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.1—19091083A0300000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.1—14091083A0310000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.1—10591083A0320000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.1—5591083A0330000
    9/16"
    		0.594"1.156"0.074" to 0.121"—ASME B18.21.1—4391083A0340000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.1—3691083A0350000
    3/4"
    		0.812"1.469"0.108" to 0.160"—ASME B18.21.1—2191083A0360000
    7/8"
    		0.938"1.750"0.108" to 0.160"—ASME B18.21.1—1691083A0370000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1—991083A0380000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—ASME B18.21.1—991083A0390000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"—ASME B18.21.1—691083A0400000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"—ASME B18.21.1—591083A0410000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"—ASME B18.21.1—491083A0420000
     
    Corrosion-Resistant Galvanized Steel
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.1—5093012A4010000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—5093012A4020000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.1—5093012A40300000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.1—10093012A1110000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.1—10093012A1120000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.1Material Certificate
    		10093012A1130000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.1—5093012A11400000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.1—5093012A11500000
    9/16"
    		0.594"1.156"0.074" to 0.121"—ASME B18.21.1—2593012A11600000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.1—2593012A11700000
    3/4"
    		0.812"1.469"0.108" to 0.160"—ASME B18.21.1—2593012A11800000
    7/8"
    		0.938"1.750"0.108" to 0.160"—ASME B18.21.1—1093012A11900000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1—593012A12000000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—ASME B18.21.1—593012A12100000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"—ASME B18.21.1—593012A12200000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"—ASME B18.21.1—193012A1230000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"—ASME B18.21.1—193012A1240000
     
    Corrosion-Resistant Chrome-Plated Steel
    No. 4
    		0.125"0.312"0.025" to 0.040"—ASME B18.21.1—1093960A1010000
    No. 6
    		0.156"0.375"0.036" to 0.065"—ASME B18.21.1—1093960A1020000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—1093960A1030000
    No. 10
    		0.218"0.500"0.036" to 0.065"—ASME B18.21.1—1093960A1040000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.1—1093960A1050000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.1—2593960A14000000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.1—2593960A16000000
    7/16"
    		0.475"0.930"0.051" to 0.080"—ASME B18.21.1—1093960A1700000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.1—1093960A1800000
    9/16"
    		0.600"1.162"0.074" to 0.121"—ASME B18.21.1—1093960A19000000
     
    Highly Corrosion-Resistant Zinc-Flake-Coated Steel
    No. 6
    		0.158"0.380"0.036" to 0.065"SAE Grade 8
    		ASME B18.21.1—1098180A1800000
    No. 8
    		0.190"0.443"0.036" to 0.065"SAE Grade 8
    		ASME B18.21.1—1098180A1900000
    No. 10
    		0.221"0.505"0.036" to 0.065"SAE Grade 8
    		ASME B18.21.1—1098180A2100000
    1/4"
    		0.281"0.625"0.055" to 0.065"SAE Grade 8
    		ASME B18.22.1—10098180A11000000
    5/16"
    		0.344"0.688"0.055" to 0.065"SAE Grade 8
    		ASME B18.22.1—5098180A1200000
    3/8"
    		0.406"0.812"0.055" to 0.065"SAE Grade 8
    		ASME B18.22.1—5098180A1300000
    7/16"
    		0.469"0.922"0.055" to 0.065"SAE Grade 8
    		ASME B18.22.1—2598180A1400000
    1/2"
    		0.531"1.062"0.097" to 0.177"SAE Grade 8
    		ASME B18.22.1—2598180A15000000
    9/16"
    		0.599"1.168"0.074" to 0.121"SAE Grade 8
    		ASME B18.21.1—598180A2200000
    5/8"
    		0.688"1.312"0.122" to 0.177"SAE Grade 8
    		ASME B18.22.1—2598180A16000000
    3/4"
    		0.812"1.469"0.122" to 0.177"SAE Grade 8
    		ASME B18.22.1—2098180A17000000
    7/8"
    		0.950"1.762"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—198180A2300000
    1"
    		1.074"2.012"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—198180A2400000
    1 1/8"
    		1.262"2.243"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—198180A2500000
    1 1/4"
    		1.387"2.512"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—198180A2600000
    1 1/2"
    		1.637"3.012"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—198180A27000000
     
    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 B18.21.1—1091434A35500000
    No. 8
    		0.188"0.438"0.036" to 0.065"—ASME B18.21.1—1091434A36500000
    No. 10
    		0.219"0.500"0.036" to 0.065"—ASME B18.21.1—1091434A37500000
    No. 12
    		0.250"0.562"0.051" to 0.080"—ASME B18.21.1—1091434A38500000
    1/4"
    		0.281"0.625"0.051" to 0.080"—ASME B18.21.1—1091434A11500000
    1/4"
    		0.281"0.625"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1—591434A1160000
    5/16"
    		0.344"0.688"0.051" to 0.080"—ASME B18.21.1—1091434A13500000
    5/16"
    		0.344"0.688"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1—591434A1170000
    3/8"
    		0.406"0.812"0.051" to 0.080"—ASME B18.21.1—1091434A15500000
    3/8"
    		0.406"0.813"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1—591434A1180000
    7/16"
    		0.469"0.922"0.051" to 0.080"—ASME B18.21.1—1091434A39500000
    7/16"
    		0.469"0.922"0.055" to 0.065"SAE Grade 8
    		ASME B18.21.1—591434A1190000
    1/2"
    		0.531"1.062"0.074" to 0.121"—ASME B18.21.1—1091434A17500000
    1/2"
    		0.531"1.063"0.100" to 0.116"SAE Grade 8
    		ASME B18.21.1—591434A12000000
    9/16"
    		0.594"1.156"0.074" to 0.121"—ASME B18.21.1—1091434A41500000
    9/16"
    		0.594"1.188"0.100" to 0.116"SAE Grade 8
    		ASME B18.21.1—591434A12100000
    5/8"
    		0.656"1.312"0.074" to 0.121"—ASME B18.21.1—1091434A19500000
    5/8"
    		0.656"1.313"0.122" to 0.138"SAE Grade 8
    		ASME B18.21.1—591434A12200000
    3/4"
    		0.812"1.469"0.108" to 0.160"—ASME B18.21.1—591434A2150000
    3/4"
    		0.813"1.469"0.122" to 0.138"SAE Grade 8
    		ASME B18.21.1—191434A1230000
    7/8"
    		0.938"1.750"0.108" to 0.160"—ASME B18.21.1—591434A23500000
    7/8"
    		0.938"1.750"0.136" to 0.152"SAE Grade 8
    		ASME B18.21.1—191434A1240000
    1"
    		1.062"2.000"0.108" to 0.160"—ASME B18.21.1—591434A25500000
    1"
    		1.063"2.000"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—191434A1250000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—ASME B18.21.1—591434A42500000
    1 1/4"
    		1.375"2.500"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—191434A1260000
    1 1/4"
    		1.375"2.500"0.136" to 0.192"—ASME B18.21.1—191434A4350000
    1 3/8"
    		1.500"2.750"0.136" to 0.192"—ASME B18.21.1—191434A4450000
    1 1/2"
    		1.625"3.000"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—191434A12700000
    1 1/2"
    		1.625"3.000"0.136" to 0.192"—ASME B18.21.1—191434A4550000
    1 3/4"
    		1.875"3.375"0.178" to 0.196"SAE Grade 8
    		ASME B18.21.1—191434A12800000
    2"
    		2.125"3.750"0.178" to 0.196"SAE Grade 8
    		ASME B18.21.1—191434A12900000
     
    AluminumAbout Aluminum
    Image of Product. Front orientation. Washers. SAE 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, but aren't as strong.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID
    OD
    Thk.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Aluminum
    No. 2
    		0.094"0.250"0.012" to 0.018"—10096596A11100000
    No. 3
    		0.109"0.250"0.025" to 0.040"—10096596A1120000
    No. 4
    		0.125"0.312"0.025" to 0.040"—10096596A1130000
    No. 5
    		0.140"0.312"0.025" to 0.040"—10096596A1140000
    No. 6
    		0.156"0.375"0.036" to 0.065"—10096596A1150000
    No. 8
    		0.188"0.438"0.036" to 0.065"—10096596A1160000
    No. 10
    		0.219"0.500"0.036" to 0.065"—10096596A1170000
    No. 12
    		0.250"0.562"0.051" to 0.080"—10096596A1180000
    1/4"
    		0.281"0.625"0.051" to 0.080"—10096596A11900000
    5/16"
    		0.344"0.688"0.051" to 0.080"—10096596A12000000
    3/8"
    		0.406"0.812"0.051" to 0.080"—5096596A1210000
    7/16"
    		0.469"0.922"0.051" to 0.080"—5096596A1220000
    1/2"
    		0.531"1.062"0.074" to 0.121"—2596596A1230000
    9/16"
    		0.594"1.156"0.074" to 0.121"—2596596A12400000
    5/8"
    		0.656"1.312"0.074" to 0.121"—1096596A1250000
    3/4"
    		0.812"1.500"0.108" to 0.160"—1096596A12600000
    7/8"
    		0.938"1.750"0.108" to 0.160"—596596A1270000
    1"
    		1.062"2.000"0.108" to 0.160"Material Certificate
    		596596A1280000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"—596596A12900000
    1 1/4"
    		1.375"2.500"0.136" to 0.213"—196596A1300000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"—196596A1310000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"—196596A1320000
     
    Brass
    Image of Product. Front orientation. Washers. SAE 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.
    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.
    Brass
    No. 2
    		0.094"0.250"0.012" to 0.018"10090231A11100000
    No. 3
    		0.109"0.250"0.025" to 0.040"10090231A1120000
    No. 4
    		0.125"0.312"0.025" to 0.040"10090231A11300000
    No. 5
    		0.140"0.312"0.025" to 0.040"10090231A11400000
    No. 6
    		0.156"0.375"0.036" to 0.065"10090231A11500000
    No. 8
    		0.188"0.438"0.036" to 0.065"5090231A1160000
    No. 10
    		0.219"0.500"0.036" to 0.065"5090231A11700000
    No. 12
    		0.250"0.562"0.051" to 0.080"2590231A11800000
    1/4"
    		0.281"0.625"0.051" to 0.080"2590231A11900000
    5/16"
    		0.344"0.688"0.051" to 0.080"2590231A12000000
    3/8"
    		0.406"0.812"0.051" to 0.080"1090231A1210000
    7/16"
    		0.469"0.922"0.051" to 0.080"1090231A1220000
    1/2"
    		0.531"1.062"0.074" to 0.121"1090231A12300000
    9/16"
    		0.594"1.156"0.074" to 0.121"590231A12400000
    5/8"
    		0.656"1.312"0.074" to 0.121"590231A12500000
    3/4"
    		0.812"1.500"0.108" to 0.160"190231A1260000
    7/8"
    		0.938"1.750"0.108" to 0.160"190231A1270000
    1"
    		1.062"2.000"0.108" to 0.160"190231A1280000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"190231A12900000
    1 1/4"
    		1.375"2.500"0.136" to 0.213"190231A13000000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"190231A13100000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"190231A13200000
     
    Nickel-Plated Brass
    No. 2
    		0.094"0.250"0.012" to 0.018"10090231A13300000
    No. 4
    		0.125"0.312"0.025" to 0.040"5090231A1350000
    No. 6
    		0.156"0.375"0.036" to 0.065"5090231A13700000
    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"590231A14500000
    3/4"
    		0.812"1.500"0.108" to 0.160"190231A1480000
     
    Copper
    Image of Product. Front orientation. Washers. SAE 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.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Copper
    No. 2
    		0.094"0.250"0.012" to 0.018"10093661A111000000
    No. 3
    		0.109"0.250"0.025" to 0.040"10093661A11200000
    No. 4
    		0.125"0.312"0.025" to 0.040"10093661A11300000
    No. 5
    		0.140"0.312"0.025" to 0.040"10093661A11400000
    No. 6
    		0.156"0.375"0.036" to 0.065"5093661A11500000
    No. 8
    		0.188"0.438"0.036" to 0.065"5093661A11600000
    No. 10
    		0.219"0.500"0.036" to 0.065"5093661A11700000
    No. 12
    		0.250"0.562"0.051" to 0.080"2593661A11800000
    1/4"
    		0.281"0.625"0.051" to 0.080"2593661A11900000
    5/16"
    		0.344"0.688"0.051" to 0.080"1093661A1200000
    3/8"
    		0.406"0.812"0.051" to 0.080"1093661A12100000
    7/16"
    		0.469"0.922"0.051" to 0.080"1093661A12200000
    1/2"
    		0.531"1.062"0.074" to 0.121"593661A12300000
    9/16"
    		0.594"1.156"0.074" to 0.121"593661A12400000
    5/8"
    		0.656"1.312"0.074" to 0.121"593661A12500000
    3/4"
    		0.812"1.500"0.108" to 0.160"193661A1260000
    7/8"
    		0.938"1.750"0.108" to 0.160"193661A12700000
    1"
    		1.062"2.000"0.108" to 0.160"193661A12800000
    1 1/8"
    		1.250"2.250"0.108" to 0.160"193661A12900000
    1 1/4"
    		1.375"2.500"0.136" to 0.213"193661A13000000
    1 3/8"
    		1.500"2.750"0.136" to 0.213"193661A13100000
    1 1/2"
    		1.625"3.000"0.153" to 0.213"193661A13200000
     
    Titanium
    Image of Product. Front orientation. Washers. SAE Washers.
    The best of both worlds, these washers are lightweight like aluminum and more corrosion resistant than 316 stainless steel.
    Ultra-Corrosion-Resistant Grade 2 Titanium—Because Grade 2 titanium is 99% pure, it's even more corrosion resistant than other common titanium grades, such as Grades 5 and 9. These washers are ideal for use in chemical-processing facilities since they stand up to strong acids and other harsh chemicals.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Ultra-Corrosion-Resistant Grade 2 Titanium
    No. 8
    		0.188"0.438"0.036" to 0.065"ASME B18.21.1190470A11000000
    No. 10
    		0.219"0.500"0.036" to 0.065"ASME B18.21.1190470A1200000
    5/16"
    		0.344"0.688"0.051" to 0.080"ASME B18.21.1190470A1300000
    3/8"
    		0.406"0.812"0.051" to 0.080"ASME B18.21.1190470A1400000
     

    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.
    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.
    High-Temperature High-Strength A286 Stainless Steel—These washers resist high temperatures up to 1300° F. In addition, they are stronger than 316 stainless steel and withstand chemicals, such as bleach and chlorine. However, they won't hold up to salt water as well as 316 stainless steel.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 10
    		0.250"0.562"0.036" to 0.065"—Material Certificate
    		5093852A10100000
    1/4"
    		0.312"0.750"0.051" to 0.080"—Material Certificate
    		5093852A10200000
    5/16"
    		0.375"0.875"0.064" to 0.104"ASME B18.21.1Material Certificate
    		2593852A10300000
    3/8"
    		0.438"1.000"0.064" to 0.104"ASME B18.21.1Material Certificate
    		1093852A1040000
    7/16"
    		0.500"1.250"0.064" to 0.104"ASME B18.21.1—1093852A1050000
    1/2"
    		0.562"1.375"0.086" to 0.132"ASME B18.21.1Material Certificate
    		1093852A11300000
    9/16"
    		0.625"1.500"0.086" to 0.132"—Material Certificate
    		593852A1060000
    5/8"
    		0.688"1.750"0.108" to 0.160"ASME B18.21.1Material Certificate
    		593852A10700000
    3/4"
    		0.812"2.000"0.122" to 0.177"ASME B18.21.1—193852A1080000
    7/8"
    		0.938"2.250"0.136" to 0.192"ASME B18.21.1—193852A1090000
    1"
    		1.062"2.500"0.136" to 0.192"ASME B18.21.1—193852A1100000
     
    High-Temperature High-Strength A286 Stainless Steel
    1/4"
    		0.312"0.734"0.051" to 0.080"ASME B18.21.1—198189A11200000
    5/16"
    		0.375"0.875"0.064" to 0.104"ASME B18.21.1—198189A12400000
    3/8"
    		0.438"1.000"0.064" to 0.104"ASME B18.21.1—198189A13900000
    1/2"
    		0.562"1.375"0.086" to 0.132"ASME B18.21.1—198189A17500000
     
    Steel
    Image of Product. Front orientation. Washers. USS Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    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-Plated Steel
    No. 10
    		0.250"0.562"0.036" to 0.065"———10090108A41100000
    No. 10
    		0.250"0.562"0.036" to 0.065"———1,78590108A02700000
    1/4"
    		0.312"0.750"0.051" to 0.080"———10090108A4130000
    1/4"
    		0.312"0.750"0.051" to 0.080"———74590108A02900000
    5/16"
    		0.375"0.875"0.064" to 0.104"—ASME B18.21.1—10090108A4150000
    5/16"
    		0.375"0.875"0.064" to 0.104"—ASME B18.21.1—43590108A03000000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.1—10090108A41700000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.1—33590108A03100000
    7/16"
    		0.500"1.250"0.064" to 0.104"—ASME B18.21.1—10090108A03200000
    1/2"
    		0.562"1.375"0.086" to 0.132"—ASME B18.21.1—5090108A03300000
    9/16"
    		0.625"1.469"0.086" to 0.132"—ASME B18.21.1—5090108A03400000
    5/8"
    		0.688"1.750"0.108" to 0.160"—ASME B18.21.1—2590108A03500000
    3/4"
    		0.812"2.000"0.122" to 0.177"—ASME B18.21.1—2590108A03600000
    7/8"
    		0.938"2.250"0.136" to 0.192"—ASME B18.21.1—1090108A03700000
    1"
    		1.062"2.500"0.136" to 0.192"—ASME B18.21.1—1090108A03800000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"—ASME B18.21.1—1090108A03900000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"—ASME B18.21.1—1090108A04000000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"—ASME B18.21.1—590108A04200000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"—ASME B18.21.1—590108A04100000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"—ASME B18.21.1—590108A04300000
    1 3/4"
    		1.875"4.000"0.153" to 0.213"—ASME B18.21.1—590108A04400000
    2"
    		2.125"4.500"0.153" to 0.213"—ASME B18.21.1—590108A04600000
    2 1/4"
    		2.375"4.750"0.193" to 0.248"—ASME B18.21.1—190108A0470000
    2 1/2"
    		2.625"5.000"0.210" to 0.280"—ASME B18.21.1—190108A0480000
    3"
    		3.125"5.500"0.249" to 0.327"—ASME B18.21.1—190108A0500000
     
    Zinc-Yellow-Chromate-Plated Steel
    1/4"
    		0.312"0.734"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1—10098026A02900000
    5/16"
    		0.375"0.875"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1—5098026A03000000
    3/8"
    		0.438"1.000"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1—5098026A03100000
    7/16"
    		0.500"1.250"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1—2598026A03200000
    1/2"
    		0.562"1.375"0.086" to 0.132"SAE Grade 8
    		ASME B18.21.1—2598026A03300000
    9/16"
    		0.625"1.469"0.086" to 0.132"SAE Grade 8
    		ASME B18.21.1—2598026A03400000
    5/8"
    		0.688"1.750"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—2598026A03500000
    3/4"
    		0.812"2.000"0.122" to 0.177"SAE Grade 8
    		ASME B18.21.1—1098026A03600000
    7/8"
    		0.938"2.250"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—1098026A03700000
    1"
    		1.062"2.500"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—598026A03800000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—598026A03900000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—598026A04000000
    1 3/8"
    		1.500"3.250"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—198026A0410000
    1 1/2"
    		1.625"3.500"0.136" to 0.160"SAE Grade 8
    		ASME B18.21.1—198026A0420000
    2 1/4"
    		2.375"4.750"0.193" to 0.248"SAE Grade 8
    		——198189A18700000
    2 1/2"
    		2.625"5.000"0.210" to 0.280"SAE Grade 8
    		——198189A19800000
    2 3/4"
    		2.875"5.250"0.228" to 0.320"SAE Grade 8
    		——198189A20100000
    3"
    		3.125"5.500"0.249" to 0.327"SAE Grade 8
    		——198189A24600000
     
    Steel
    No. 10
    		0.250"0.562"0.036" to 0.065"———10091081A1270000
    No. 10
    		0.250"0.562"0.036" to 0.065"———1,78591081A02700000
    1/4"
    		0.312"0.750"0.051" to 0.080"———10091081A1290000
    1/4"
    		0.312"0.750"0.051" to 0.080"———74591081A02900000
    5/16"
    		0.375"0.875"0.064" to 0.104"—ASME B18.21.1—10091081A1300000
    5/16"
    		0.375"0.875"0.064" to 0.104"—ASME B18.21.1—43591081A03000000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.1—10091081A13100000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.1—33591081A03100000
    7/16"
    		0.500"1.250"0.064" to 0.104"—ASME B18.21.1—18591081A03200000
    1/2"
    		0.562"1.375"0.086" to 0.132"—ASME B18.21.1—13091081A03300000
    9/16"
    		0.625"1.469"0.086" to 0.132"—ASME B18.21.1—11091081A03400000
    5/8"
    		0.688"1.750"0.108" to 0.160"—ASME B18.21.1—6591081A03500000
    3/4"
    		0.812"2.000"0.122" to 0.177"—ASME B18.21.1—4591081A03600000
    7/8"
    		0.938"2.250"0.136" to 0.192"—ASME B18.21.1—3291081A03700000
    1"
    		1.062"2.500"0.136" to 0.192"—ASME B18.21.1—2691081A03800000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"—ASME B18.21.1—1091081A03900000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"—ASME B18.21.1—1091081A04000000
    1 3/8"
    		1.500"3.250"0.153" to 0.213"—ASME B18.21.1—591081A0420000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"—ASME B18.21.1—591081A04100000
    1 5/8"
    		1.750"3.750"0.153" to 0.213"—ASME B18.21.1—591081A04300000
    1 3/4"
    		1.875"4.000"0.153" to 0.213"—ASME B18.21.1—591081A04400000
    1 7/8"
    		2.000"4.250"0.153" to 0.213"—ASME B18.21.1—191081A3520000
    2"
    		2.125"4.500"0.153" to 0.213"—ASME B18.21.1—191081A0460000
    2 1/4"
    		2.375"4.750"0.193" to 0.248"—ASME B18.21.1—191081A0470000
    2 1/2"
    		2.625"5.000"0.210" to 0.280"—ASME B18.21.1—191081A0480000
    3"
    		3.125"5.500"0.249" to 0.327"—ASME B18.21.1—191081A0500000
     
    Corrosion-Resistant Galvanized Steel
    1/4"
    		0.312"0.750"0.051" to 0.080"—ASME B18.21.1—10098970A1290000
    5/16"
    		0.375"0.875"0.064" to 0.104"—ASME B18.21.1—10098970A13000000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.1—10098970A13100000
    7/16"
    		0.500"1.250"0.064" to 0.104"—ASME B18.21.1—10098970A13200000
    1/2"
    		0.562"1.375"0.086" to 0.132"—ASME B18.21.1—5098970A13300000
    5/8"
    		0.688"1.750"0.108" to 0.160"—ASME B18.21.1—2598970A13500000
    3/4"
    		0.812"2.000"0.122" to 0.177"—ASME B18.21.1—2598970A13600000
    7/8"
    		0.938"2.250"0.136" to 0.192"—ASME B18.21.1Material Certificate
    		1098970A13700000
    1"
    		1.062"2.500"0.136" to 0.192"—ASME B18.21.1—1098970A13800000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"—ASME B18.21.1—1098970A14100000
    1 1/2"
    		1.625"3.500"0.153" to 0.213"—ASME B18.21.1—598970A14300000
     
    Black Super-Corrosion-Resistant-Coated Steel
    1/4"
    		0.312"0.750"0.051" to 0.080"—ASME B18.21.1—1096582A30400000
    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 B18.21.1—1096582A32100000
    5/16"
    		0.375"0.875"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1—1098189A47200000
    3/8"
    		0.438"1.000"0.064" to 0.104"—ASME B18.21.1—1096582A33800000
    3/8"
    		0.438"1.000"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1—598189A4740000
    7/16"
    		0.500"1.250"0.064" to 0.104"SAE Grade 8
    		ASME B18.21.1—598189A47800000
    1/2"
    		0.562"1.375"0.086" to 0.132"—ASME B18.21.1—596582A3520000
    1/2"
    		0.562"1.375"0.086" to 0.132"SAE Grade 8
    		ASME B18.21.1—598189A49100000
    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 B18.21.1—596582A3710000
    5/8"
    		0.688"1.750"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1—198189A5580000
    3/4"
    		0.812"2.000"0.122" to 0.177"—ASME B18.21.1—596582A38900000
    3/4"
    		0.812"2.000"0.122" to 0.177"SAE Grade 8
    		ASME B18.21.1—198189A5600000
    7/8"
    		0.938"2.250"0.136" to 0.192"—ASME B18.21.1—596582A40600000
    7/8"
    		0.938"2.250"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—198189A5660000
    1"
    		1.062"2.500"0.136" to 0.192"—ASME B18.21.1—596582A42300000
    1"
    		1.062"2.500"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—198189A6030000
    1 1/8"
    		1.250"2.750"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—198189A61800000
    1 1/4"
    		1.375"3.000"0.136" to 0.192"SAE Grade 8
    		ASME B18.21.1—198189A62600000
    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"SAE Grade 8
    		——198189A65400000
     

    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.
    Image of Specification. Front orientation. Washers. General Purpose Washers.
    High-Temperature High-Strength A286 Stainless Steel—These washers resist high temperatures up to 1300° F. In addition, they are stronger than 316 stainless steel and withstand chemicals, such as bleach and chlorine. However, they won't hold up to salt water as well as 316 stainless steel.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    High-Temperature High-Strength A286 Stainless Steel
    No. 4
    		0.125"0.312"0.025" to 0.040"ASME B18.21.1—198189A080000000
    No. 6
    		0.156"0.375"0.036" to 0.065"ASME B18.21.1—198189A10000000
    No. 8
    		0.188"0.438"0.036" to 0.065"ASME B18.21.1Material Certificate
    		198189A13000000
    No. 10
    		0.219"0.500"0.036" to 0.065"ASME B18.21.1Material Certificate
    		198189A16000000
    1/4"
    		0.312"0.734"0.051" to 0.080"ASME B18.21.1Material Certificate
    		198189A20000000
    5/16"
    		0.375"0.875"0.064" to 0.104"ASME B18.21.1—198189A30000000
    3/8"
    		0.438"1.000"0.064" to 0.104"ASME B18.21.1Material Certificate
    		198189A40000000
    1/2"
    		0.562"1.375"0.086" to 0.132"ASME B18.21.1—198189A50000000
     
    Steel
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Image of Specification. Front orientation. Washers. General Purpose Washers.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    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.
    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"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		10098023A115000000
    5/16"
    		0.344"0.688"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		5098023A1160000
    3/8"
    		0.406"0.812"0.051" to 0.080"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		5098023A11700000
    1/2"
    		0.531"1.062"0.074" to 0.121"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		2598023A11800000
    5/8"
    		0.656"1.312"0.074" to 0.121"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		1098023A1190000
    5/8"
    		0.656"1.312"0.122" to 0.146"SAE Grade 8
    		——2598023A03500000
    3/4"
    		0.812"1.469"0.108" to 0.160"SAE Grade 8
    		ASME B18.21.1Material Certificate
    		1098023A1210000
    1 3/4"
    		1.875"3.375"0.178" to 0.196"SAE Grade 8
    		——598023A04400000
    2"
    		2.125"3.750"0.178" to 0.196"SAE Grade 8
    		——198023A0450000
     
    Corrosion-Resistant Chrome-Plated Steel
    1/4"
    		0.312"0.734"0.051" to 0.080"—ASME B18.21.1—1093960A12000000
     
    Molybdenum
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Image of Specification. Front orientation. Washers. General Purpose Washers.
    Ultra-High-Temperature Molybdenum—Use these washers with molybdenum screws and nuts in high-temperature oxygen-free environments, such as vacuum furnaces. Since they’re thermally conductive, heat passes through them quickly without deforming them. They’re stronger than ceramic washers yet still handle similar temperatures without trouble. However, they will corrode in high heat when oxygen is present. They’re also nonmagnetic.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Ultra-High-Temperature Molybdenum
    1/4"
    		0.265"0.750"0.036" to 0.045"—191614A11000000
    3/8"
    		0.406"1.000"0.056" to 0.071"—191614A1200000
    1/2"
    		0.531"1.062"0.074" to 0.121"ASME B18.21.1191614A1300000
    M6
    		6.4 mm12.0 mm1.4 mm to 1.8 mmDIN 125191614A1400000
    M8
    		8.4 mm16.0 mm1.4 mm to 1.8 mmDIN 125191614A1500000
     

    USS Washer Assortments

    Image of Product. Front orientation. Washers. USS Washer Assortments.
    These assortments offer a range of sizes that all meet USS specifications. USS washers typically have larger diameters than SAE washers to accommodate larger nuts and screws and to distribute pressure across a wider surface area. They are also thicker, so they withstand heavier loads and span wider gaps when used as spacers. Labels in the lid include our part numbers, so it's easy to replenish the assortments.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    No. of
    Pieces
    Sizes Included
    Container
    Type
    Each
    Zinc-Plated Steel
    590For 1/4" to 3/4" Screw SizesPlastic Box91535A110000000
     

    General Purpose Washer Assortments

    Image of Product. Front orientation. Washers. General Purpose Washer Assortments.
    Keep a collection of common washer sizes on hand to take the pressure off screws and nuts. Labels in the lid include our part numbers, so it's easy to replenish the assortments.
    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.
    Highly-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.
    No. of
    Pieces
    Sizes Included
    Container
    Type
    Each
    18-8 Stainless Steel
    550For No. 8 to 1/2" Screw SizesPlastic Box92075A206000000
    1,680For No. 2 to 1" Screw SizesMetal Box92075A21200000
     
    Highly-Corrosion-Resistant 316 Stainless Steel
    550For No. 8 to 1/2" Screw SizesPlastic Box92075A40600000
     

    SAE Washer Assortments

    Image of Product. Front orientation. Washers. SAE Washer Assortments.
    These assortments offer a range of sizes that all meet SAE specifications. SAE washers generally have smaller diameters than USS washers to fit in cramped spots and are thinner to create more precise gaps. They distribute pressure under screws and nuts to protect your mounting surface. Labels in the lid include our part numbers, so it's easy to replenish the assortments.
    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.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    No. of
    Pieces
    Sizes Included
    Container
    Type
    Each
    18-8 Stainless Steel
    350For No. 8 to 1/2" Screw SizesPlastic Box91535A300000000
     
    Zinc-Plated Steel
    350For No. 8 to 1/2" Screw SizesPlastic Box91535A20000000
    850For No. 8 to 1/2" Screw SizesPlastic Box91535A13000000
     
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