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    97 Products

    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.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. ASME 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.
    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
    ASME
    Designation
    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2.5
    Narrow3.15.90.6 to 0.9ASME B18.22M100000000000000
    M2.5
    Regular3.07.70.6 to 0.9ASME B18.22M10000000000000
    M2.5
    Wide3.09.70.8 to 1.2ASME B18.22M10000000000000
    M3
    Narrow3.56.70.6 to 0.9ASME B18.22M10000000000000
    M3
    Regular3.59.80.8 to 1.2ASME B18.22M10000000000000
    M3
    Wide3.511.81.0 to 1.4ASME B18.22M10000000000000
    M4
    Narrow4.79.80.8 to 1.2ASME B18.22M10000000000000
    M4
    Regular4.711.81.0 to 1.4ASME B18.22M10000000000000
    M4
    Wide4.715.81.6 to 2.3ASME B18.22M10000000000000
    M5
    Narrow5.610.61.0 to 1.4ASME B18.22M10000000000000
    M5
    Regular5.614.71.2 to 1.8ASME B18.22M10000000000000
    M5
    Wide5.619.81.6 to 2.3ASME B18.22M10000000000000
    M6
    Narrow6.712.71.2 to 1.8ASME B18.22M10000000000000
    M6
    Regular6.718.61.2 to 1.8ASME B18.22M10000000000000
    M6
    Wide6.725.01.6 to 2.3ASME B18.22M10000000000000
    M10
    Narrow10.919.81.6 to 2.3ASME B18.22M10000000000000
    M10
    Regular10.927.72.0 to 2.8ASME B18.22M10000000000000
    M10
    Wide10.938.62.5 to 3.5ASME B18.22M10000000000000
    M12
    Narrow13.424.92.0 to 2.8ASME B18.22M10000000000000
    M12
    Regular13.433.72.5 to 3.5ASME B18.22M10000000000000
    M12
    Wide13.443.62.5 to 3.5ASME B18.22M10000000000000
    M14
    Regular15.338.62.5 to 3.5ASME B18.22M10000000000000
    M14
    Wide15.349.53.0 to 4.0ASME B18.22M100000000000000
    M16
    Narrow17.431.72.5 to 3.5ASME B18.22M10000000000000
    M16
    Regular17.343.63.0 to 4.0ASME B18.22M10000000000000
    M16
    Wide17.455.53.5 to 4.6ASME B18.22M10000000000000
    M20
    Narrow21.938.43.0 to 4.0ASME B18.22M10000000000000
    M20
    Regular22.049.63.5 to 4.6ASME B18.22M100000000000000
    M20
    Wide22.065.04.0 to 5.1ASME B18.22M100000000000000
    M24
    Regular25.755.54.0 to 5.1ASME B18.22M10000000000000
    M30
    Narrow32.555.54.0 to 5.1ASME B18.22M100000000000000
    M30
    Regular32.571.44.5 to 5.6ASME B18.22M100000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M2.5
    Narrow3.15.90.6 to 0.9ASME B18.22M10000000000000
    M3
    Narrow3.56.70.6 to 0.9ASME B18.22M10000000000000
    M4
    Narrow4.79.80.8 to 1.2ASME B18.22M10000000000000
    M4
    Regular4.711.81.0 to 1.4ASME B18.22M10000000000000
    M4
    Wide4.715.81.6 to 2.3ASME B18.22M10000000000000
    M5
    Narrow5.610.61.0 to 1.4ASME B18.22M10000000000000
    M5
    Regular5.614.81.2 to 1.8ASME B18.22M10000000000000
    M5
    Wide5.619.81.6 to 2.3ASME B18.22M10000000000000
    M6
    Narrow6.712.71.2 to 1.8ASME B18.22M10000000000000
    M6
    Regular6.718.61.2 to 1.8ASME B18.22M10000000000000
    M6
    Wide6.725.01.6 to 2.3ASME B18.22M10000000000000
    M10
    Narrow10.919.81.6 to 2.3ASME B18.22M10000000000000
    M10
    Regular10.927.72.0 to 2.8ASME B18.22M10000000000000
    M10
    Wide10.938.62.5 to 3.5ASME B18.22M10000000000000
    M12
    Narrow13.424.92.0 to 2.8ASME B18.22M10000000000000
    M12
    Regular13.433.72.5 to 3.5ASME B18.22M10000000000000
    M12
    Wide13.443.62.5 to 3.5ASME B18.22M10000000000000
    M14
    Narrow15.327.72.0 to 2.8ASME B18.22M10000000000000
    M14
    Wide15.349.53.0 to 4.0ASME B18.22M10000000000000
    M16
    Narrow17.431.72.5 to 3.5ASME B18.22M10000000000000
    M16
    Regular17.343.63.0 to 4.0ASME B18.22M10000000000000
    M16
    Wide17.455.53.5 to 4.6ASME B18.22M100000000000000
    M20
    Regular21.949.63.5 to 4.6ASME B18.22M100000000000000
    M20
    Wide22.065.04.0 to 5.1ASME B18.22M100000000000000
    M24
    Regular25.755.54.0 to 5.1ASME B18.22M100000000000000
     
    Steel
    Image of Product. Front orientation. Washers. ASME Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
    Size
    ASME
    Designation
    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M3
    Narrow3.56.80.6 to 0.9ASME B18.22M100000000000000
    M3
    Regular3.59.90.8 to 1.2ASME B18.22M100000000000000
    M3
    Wide3.511.81.0 to 1.4ASME B18.22M10000000000000
    M4
    Narrow4.89.70.8 to 1.2ASME B18.22M10000000000000
    M4
    Regular4.811.81.0 to 1.4ASME B18.22M10000000000000
    M4
    Wide4.715.81.6 to 2.3ASME B18.22M10000000000000
    M5
    Narrow5.610.71.0 to 1.4ASME B18.22M10000000000000
    M5
    Regular5.714.61.2 to 1.8ASME B18.22M10000000000000
    M5
    Wide5.619.81.6 to 2.3ASME B18.22M10000000000000
    M6
    Narrow6.712.71.2 to 1.8ASME B18.22M10000000000000
    M6
    Regular6.718.61.2 to 1.8ASME B18.22M10000000000000
    M6
    Wide6.725.01.6 to 2.3ASME B18.22M10000000000000
    M10
    Narrow10.919.71.6 to 2.3ASME B18.22M10000000000000
    M10
    Regular10.927.72.0 to 2.8ASME B18.22M10000000000000
    M10
    Wide10.938.62.5 to 3.5ASME B18.22M10000000000000
    M12
    Narrow13.424.92.0 to 2.8ASME B18.22M10000000000000
    M12
    Regular13.433.72.5 to 3.5ASME B18.22M10000000000000
    M12
    Wide13.443.62.5 to 3.5ASME B18.22M10000000000000
    M14
    Regular15.338.62.5 to 3.5ASME B18.22M10000000000000
    M16
    Narrow17.431.72.5 to 3.5ASME B18.22M10000000000000
    M16
    Regular17.343.63.0 to 4.0ASME B18.22M100000000000000
    M16
    Wide17.355.53.5 to 4.6ASME B18.22M100000000000000
    M20
    Narrow22.038.73.0 to 4.0ASME B18.22M100000000000000
    M20
    Regular21.949.63.5 to 4.6ASME B18.22M100000000000000
    M20
    Wide22.065.04.0 to 5.1ASME B18.22M100000000000000
    M24
    Regular25.755.54.0 to 5.1ASME B18.22M100000000000000
    M24
    Wide25.771.44.5 to 5.6ASME B18.22M100000000000000
    M30
    Narrow32.555.54.0 to 5.1ASME B18.22M100000000000000
    M30
    Regular32.571.44.5 to 5.6ASME B18.22M100000000000000
     

    Ultra-High-Temperature Ceramic Washers

    Image of Product. Front orientation. Washers. Ultra-High-Temperature Ceramic Washers.
    Our most heat-resistant washers, even at blistering temperatures up to 3000° F. They distribute pressure evenly under nuts and screws in industrial furnaces, kilns, and other extreme-temperature environments. Ceramic may crack or dent if subjected to hard bumps, however, so these washers are not recommended for high-vibration applications.
    Temp.
    Range
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Min.
    Max.,
    ° F
    Specs. Met
    Color
    Each
    M2
    2.66.00.6 to 0.9Not Rated3,000ASME B18.22MOff-White00000000000000
    M3
    3.610.00.8 to 1.2Not Rated3,000ASME B18.22MOff-White0000000000000
    M4
    4.812.01.0 to 1.4Not Rated3,000ASME B18.22MOff-White0000000000000
    M8
    9.025.41.6 to 2.3Not Rated3,000ASME B18.22MOff-White0000000000000
    M10
    11.028.02.0 to 2.8Not Rated3,000ASME B18.22MOff-White0000000000000
    M12
    13.434.02.5 to 3.5Not Rated3,000ASME B18.22MOff-White0000000000000
    M14
    15.439.02.5 to 3.5Not Rated3,000ASME B18.22MOff-White00000000000000
    M16
    17.444.03.0 to 4.0Not Rated3,000ASME B18.22MOff-White00000000000000
    M20
    22.050.03.5 to 4.6Not Rated3,000ASME B18.22MOff-White00000000000000

    Plastic Washers

    Image of Product. Front orientation. Washers. Plastic Washers.
    All of these washers are lightweight, nonconductive, and naturally rust resistant. They are commonly used in electronics and automation applications to take the pressure off screws and nuts and protect mounting surfaces.
    Nylon—The most popular plastic washers, these are strong, durable, and economical. Nylon will swell and weaken when exposed to moisture, so these washers are best for dry environments.
    Temp.
    Range, ° F
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Min.
    Max.
    Specs. Met
    Color
    Pkg.
    Qty.
    Pkg.
    Nylon
    M12
    13.425.12.4 to 2.7-40180ASME B18.22MBlack50000000000000000
    M12
    13.425.12.4 to 2.7-40180ASME B18.22MOff-White5000000000000000
     
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