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    33 Products

    Square Washers

    Image of Product. Bottom orientation. Washers. Square Washers.
    With flat sides, these washers fit into slots and channels and won't rotate out of position. They are also wider and thicker than most round washers, so they distribute heavier loads across a larger surface area. Square washers are commonly used to anchor heavy machinery, fasten framing to floors, and hang pipe and conduit from strut channel.
    Stainless SteelAbout Stainless Steel
    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.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID,
    mm
    Wd.,
    mm
    Thk.,
    mm
    Certificate Type
    Each
    18-8 Stainless Steel
    M6
    9.050.06.091122A222000000
    M8
    11.050.06.091122A22300000
    M10
    13.050.06.091122A22400000
    M12
    16.050.06.0Material Certificate91122A22500000
    M14
    18.050.06.0Material Certificate91122A22600000
    M16
    22.050.06.0Material Certificate91122A22700000
    M20
    26.050.06.0Material Certificate91122A22800000
    M22
    28.050.06.0Material Certificate91122A22900000
    M24
    32.050.06.0Material Certificate91122A31000000
    M30
    38.050.06.0Material Certificate91122A31100000
     
    Steel
    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.
    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.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID,
    mm
    Wd.,
    mm
    Thk.,
    mm
    Certificate Type
    Each
    Black-Oxide Steel
    M6
    9.050.06.091128A31100000
    M8
    11.050.06.091128A4100000
    M10
    13.050.06.091128A4150000
    M12
    16.050.06.091128A4200000
    M14
    18.050.06.091128A3120000
    M16
    22.050.06.091128A3130000
    M20
    26.050.06.091128A3170000
    M22
    28.050.06.091128A3150000
    M24
    32.050.06.091128A4400000
    M30
    38.050.06.091128A3160000
     
    Corrosion-Resistant Galvanized Steel
    M6
    9.050.06.091133A2110000
    M8
    11.050.06.091133A2120000
    M10
    13.050.06.091133A2130000
    M12
    16.050.06.091133A2140000
    M14
    18.050.06.091133A2150000
    M16
    22.050.06.091133A21600000
    M20
    26.050.06.091133A21700000
    M22
    28.050.06.0Material Certificate91133A21800000
    M24
    32.050.06.0Material Certificate91133A21900000
    M30
    38.050.06.091133A22100000
     

    Heavy-Vibration-Resistant Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Spring Lock Washer, Conical Washer.
    With a grip that's second only to wedge lock, these washers stop nuts and screws from wiggling loose under constant, vigorous vibration. They are ideal for engines, turbines, generators, and other heavy duty equipment. Similar to a spring, they flatten under pressure to add tension between mating surfaces. As long as the washers aren't deformed or otherwise damaged, you can reuse them indefinitely without losing locking strength. Also known as conical washers and Belleville washers.
    Stack multiple washers in the same direction to double or triple how much weight they can bear. Stack washers in opposite directions for better deflection, which means they compress further and withstand more shock and movement without loosening.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Phosphate-Coated Steel—Paint adheres evenly to the surface of these washers, so you can add your own decorative finish. They are more durable than zinc-plated steel washers to withstand wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M24
    25.056.06.07.8DIN 6796195221A133000000
     
    Phosphate-Coated Steel
    M24
    25.056.06.07.8DIN 6796195221A21300000
     
    Steel
    M24
    25.056.06.07.8DIN 6796193497A34000000
     
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