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    8 Products

    Wave Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Wave Washer, Spring Lock Washer.
    The wavy shape flexes like a spring to keep nuts and screws secure on slightly uneven surfaces. These washers add a small amount of tension to stop fasteners from backing out due to mild vibration. While they don't hold as well as other lock washers, they do grip slightly better than curved washers. They work best in electrical panels, light fixtures, and other light duty assemblies. Since these washers hold their shape when untightened, you can reuse them a handful of times without losing strength.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    DIN 128B—These washers have split ends that bite into your material surface for a tighter hold than other wave washers.
    For Screw
    Size
    No. of
    Waves
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M16
    		116.227.42.74.5DIN 128B25000000000000000
    M18
    		118.229.42.74.5DIN 128B100000000000000
     

    Curved Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Curved Washer, Spring Lock Washer.
    The curvy, spring-like shape adds a small amount of tension to prevent nuts and screws from backing out due to mild vibration. These washers also flex slightly to compensate for uneven surfaces. While more secure than a standard flat washer, these have the least amount of gripping power of all our lock washers. They are best suited for electrical panels, light fixtures, and other light duty assemblies. These washers hold their shape when untightened, so you can reuse them a handful of times without losing strength.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    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.
    DIN 128A—These washers have split ends that bite into your material surface for a tighter hold than other curved washers.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M16
    		16.227.42.74.5DIN 128A20000000000000000
    M18
    		18.229.42.74.5DIN 128A1000000000000000
     
    Zinc-Plated Steel
    M16
    		16.227.42.74.5DIN 128A2500000000000000
    M18
    		18.229.42.74.5DIN 128A100000000000000
     
    Zinc-Yellow-Chromate-Plated Steel
    M16
    		16.227.42.74.5DIN 128A1000000000000000
     
    Black-Oxide Steel
    M16
    		16.227.42.74.5DIN 128A100000000000000
     
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