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    20 Products

    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.
    Highly Corrosion-Resistant Zinc-Flake-Coated Steel—With 5 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 720 hours of salt spray. They are similar to Magni-coated washers.
    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.
    Steel
    1/2"
    0.531"1.062"0.097" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110098038A265000000
    5/8"
    0.688"1.312"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 15098038A26800000
    3/4"
    0.812"1.469"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 15098038A27400000
    7/8"
    0.938"1.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12598038A27900000
    1"
    1.062"2.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12598038A28200000
    1 1/8"
    1.188"2.250"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11098038A2850000
    1 1/4"
    1.375"2.500"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 11098038A28900000
    1 3/8"
    1.531"2.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11098038A1110000
    1 1/2"
    1.625"3.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 11098038A29300000
    1 5/8"
    1.770"3.250"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1598038A1120000
    1 3/4"
    1.875"3.375"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1598038A31100000
    1 7/8"
    2.000"3.500"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1598038A11300000
    2"
    2.125"3.750"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1598038A31200000
    2 1/4"
    2.407"4.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198038A1140000
    2 1/2"
    2.657"4.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198038A3130000
    2 3/4"
    2.907"5.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198038A1150000
    3"
    3.157"5.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1198038A3140000
     
    Highly Corrosion-Resistant Zinc-Flake-Coated Steel
    1/2"
    0.531"1.062"0.097" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1Material Certificate
    10091806A12100000
    5/8"
    0.688"1.312"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1Material Certificate
    5091806A12200000
    3/4"
    0.812"1.469"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1Material Certificate
    2591806A12300000
     
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