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    15 Products

    Tension-Indicating Structural Washers
    3D CAD models available

    Fasten joints securely without overtightening. When you see orange dye, you'll know you've applied the correct tension, so you don't accidentally strip threads. These washers distribute pressure under structural screws and nuts in columns, joists, and I-beams. They are tested and certified to meet industry standards for handling high-stress loads.
    Steel
    Image of Product. Front orientation. Washers. Tension-Indicating Structural Washers.
    Zinc-Plated Steel—The most common choice for areas with occasional exposure to moisture.
    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.
    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
    M16
    16.70033.6003.200 to 5.500ISO Class 10.9
    ASME B18.2.6M, ASTM F9595000000000000000
    M20
    20.95040.6403.600 to 6.000ISO Class 10.9
    ASME B18.2.6M, ASTM F959500000000000000
    M22
    23.00042.9003.600 to 6.000ISO Class 10.9
    ASME B18.2.6M, ASTM F95910000000000000
    M24
    25.10048.6704.000 to 7.000ISO Class 10.9
    ASME B18.2.6M, ASTM F95910000000000000
    M27
    28.35054.3604.000 to 7.000ISO Class 10.9
    ASME B18.2.6M, ASTM F95910000000000000
    M30
    31.40058.4204.000 to 7.000ISO Class 10.9
    ASME B18.2.6M, ASTM F95910000000000000
    M36
    37.70070.3604.800 to 7.500ISO Class 10.9
    ASME B18.2.6M, ASTM F95910000000000000
     
    Corrosion-Resistant Galvanized Steel
    M12
    12.55027.2502.600 to 4.600ISO Class 8.8
    ASME B18.2.6M, ASTM F9591000000000000000
    M16
    16.70033.6003.200 to 5.500ISO Class 8.8
    ASME B18.2.6M, ASTM F95950000000000000
    M20
    20.95040.6403.600 to 6.000ISO Class 8.8
    ASME B18.2.6M, ASTM F959500000000000000
    M22
    23.00042.9003.600 to 6.000ISO Class 8.8
    ASME B18.2.6M, ASTM F959500000000000000
    M24
    25.10048.6704.000 to 7.000ISO Class 8.8
    ASME B18.2.6M, ASTM F95910000000000000
    M27
    28.35054.3604.000 to 7.000ISO Class 8.8
    ASME B18.2.6M, ASTM F95910000000000000
    M30
    31.40058.4204.000 to 7.000ISO Class 8.8
    ASME B18.2.6M, ASTM F95910000000000000
    M36
    37.70070.3604.800 to 7.500ISO Class 8.8
    ASME B18.2.6M, ASTM F95910000000000000
     
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