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    53 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.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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,
    mm
    OD,
    mm
    Thk., mm
    For Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M22
    23.039.02.7 to 3.3ISO Class 8.8
    DIN 125, ISO 70895000000000000000
     

    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.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    No. 4
    0.125"0.312"0.025" to 0.040"SAE Grade 5
    10000000000000000
    No. 6
    0.156"0.375"0.036" to 0.065"SAE Grade 5
    1000000000000000
    No. 8
    0.188"0.438"0.036" to 0.065"SAE Grade 5
    1000000000000000
    No. 10
    0.219"0.500"0.036" to 0.065"SAE Grade 5
    1000000000000000
    No. 12
    0.250"0.562"0.051" to 0.080"SAE Grade 5
    500000000000000
    1/4"
    0.281"0.625"0.051" to 0.080"SAE Grade 5
    500000000000000
    5/16"
    0.344"0.688"0.051" to 0.080"SAE Grade 5
    500000000000000
    3/8"
    0.406"0.812"0.051" to 0.080"SAE Grade 5
    500000000000000
    7/16"
    0.469"0.922"0.051" to 0.080"SAE Grade 5
    5000000000000000
    1/2"
    0.531"1.062"0.074" to 0.121"SAE Grade 5
    100000000000000
    9/16"
    0.594"1.156"0.074" to 0.121"SAE Grade 5
    50000000000000
    5/8"
    0.656"1.312"0.074" to 0.121"SAE Grade 5
    100000000000000
    3/4"
    0.812"1.469"0.108" to 0.160"SAE Grade 5
    500000000000000
    7/8"
    0.938"1.750"0.108" to 0.160"SAE Grade 5
    10000000000000
    1"
    1.062"2.000"0.108" to 0.160"SAE Grade 5
    10000000000000
    1 1/8"
    1.250"2.250"0.108" to 0.160"SAE Grade 5
    10000000000000
    1 1/4"
    1.375"2.500"0.136" to 0.192"SAE Grade 5
    10000000000000
    1 1/2"
    1.625"3.000"0.136" to 0.192"SAE Grade 5
    10000000000000
     

    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.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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.
    Zinc-Plated Steel
    1/4"
    0.313"0.750"0.051" to 0.080"SAE Grade 5
    50000000000000000
    5/16"
    0.375"0.875"0.064" to 0.104"SAE Grade 5
    ASME B18.21.12500000000000000
    3/8"
    0.438"1.000"0.064" to 0.104"SAE Grade 5
    ASME B18.21.1100000000000000
    1/2"
    0.563"1.375"0.086" to 0.132"SAE Grade 5
    ASME B18.21.11000000000000000
    5/8"
    0.688"1.750"0.108" to 0.160"SAE Grade 5
    ASME B18.21.1500000000000000
    3/4"
    0.813"2.000"0.122" to 0.177"SAE Grade 5
    ASME B18.21.110000000000000
     

    ASME Washers

    Also known as Type B washers, these meet ASME sizing standards. They take the pressure off screws and nuts to protect your mounting surface.
    Steel
    Image of Product. Front orientation. Washers. ASME Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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
    ASME
    Designation
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    No. 10
    Narrow0.203"0.406"0.036" to 0.045"SAE Grade 5
    ASME B18.21.1100000000000000000
    1/4"
    Narrow0.281"0.500"0.056" to 0.071"SAE Grade 5
    ASME B18.21.15000000000000000
    1/4"
    Regular0.281"0.734"0.056" to 0.071"SAE Grade 5
    ASME B18.21.15000000000000000
    1/4"
    Wide0.281"1.000"0.056" to 0.071"SAE Grade 5
    ASME B18.21.12500000000000000
    5/16"
    Narrow0.344"0.625"0.056" to 0.071"SAE Grade 5
    ASME B18.21.15000000000000000
    5/16"
    Regular0.344"0.875"0.056" to 0.071"SAE Grade 5
    ASME B18.21.12500000000000000
    3/8"
    Narrow0.406"0.734"0.056" to 0.071"SAE Grade 5
    ASME B18.21.15000000000000000
    3/8"
    Regular0.406"1.000"0.056" to 0.071"SAE Grade 5
    ASME B18.21.12500000000000000
    3/8"
    Wide0.406"1.250"0.090" to 0.112"SAE Grade 5
    ASME B18.21.11000000000000000
    1/2"
    Narrow0.531"1.000"0.056" to 0.071"SAE Grade 5
    ASME B18.21.12500000000000000
    1/2"
    Regular0.531"1.250"0.090" to 0.112"SAE Grade 5
    ASME B18.21.11000000000000000
    1/2"
    Wide0.531"1.750"0.090" to 0.112"SAE Grade 5
    ASME B18.21.1500000000000000
    5/8"
    Narrow0.656"1.250"0.090" to 0.112"SAE Grade 5
    ASME B18.21.11000000000000000
    5/8"
    Regular0.656"1.750"0.090" to 0.112"SAE Grade 5
    ASME B18.21.1500000000000000
    3/4"
    Narrow0.812"1.375"0.090" to 0.112"SAE Grade 5
    ASME B18.21.11000000000000000
    3/4"
    Regular0.812"2.000"0.090" to 0.112"SAE Grade 5
    ASME B18.21.110000000000000
    1"
    Narrow1.062"1.750"0.090" to 0.112"SAE Grade 5
    ASME B18.21.1500000000000000
     

    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
    Image of Product. Front orientation. Washers. Undersized Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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,
    mm
    OD,
    mm
    Thk., mm
    For Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M3
    3.26.00.5 to 0.6ISO Class 8.8
    DIN 43310000000000000000
    M4
    4.38.00.5 to 0.6ISO Class 8.8
    DIN 4331000000000000000
    M5
    5.39.00.9 to 1.1ISO Class 8.8
    DIN 4331000000000000000
    M6
    6.411.01.4 to 1.8ISO Class 8.8
    DIN 43310000000000000000
    M8
    8.415.01.4 to 1.8ISO Class 8.8
    DIN 4335000000000000000
    M10
    10.518.01.4 to 1.8ISO Class 8.8
    DIN 4335000000000000000
    M12
    13.020.01.8 to 2.2ISO Class 8.8
    DIN 4332500000000000000
    M14
    15.024.02.3 to 2.7ISO Class 8.8
    DIN 433100000000000000
    M16
    17.028.02.3 to 2.7ISO Class 8.8
    DIN 4331000000000000000
    M20
    21.034.02.7 to 3.3ISO Class 8.8
    DIN 433500000000000000
    M24
    25.039.03.7 to 4.3ISO Class 8.8
    DIN 43310000000000000
     
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