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    3 Products

    Sealing Washers

    Prevent leaks while distributing weight evenly under nuts and screws. These washers compress as you tighten to keep air and fluid in, and dust and contaminants out. Use them anywhere you need a tight seal, such as protecting electronics from moisture or keeping lubricants contained in machinery.
    Metal
    Image of Product. Front orientation. Sealing Washers. Metal.
    Also known as crush washers, these are made of soft metal that deforms under pressure to fill gaps around the nut or screw. Often found in oil drain valves, they withstand stress and wear better than plastic and rubber washers, but aren't as leak-resistant. Metal sealing washers are not reusable.
    Cellulose-Filled Copper—The easiest washers to crush. These washers are embedded with cellulose, which makes them more flexible than other metal washers for a tighter seal. They resist rusting in corrosive environments, but will develop a green patina over time.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Cellulose-Filled Copper
    M50
    		50.20056.9002.3 to 2.7DIN 76031000000000000000
     

    Spring Lock Washers for Slotted Bearing Nuts

    Image of System. Front orientation. Contains Annotated. For Chamfered Nuts. Spring Lock Washer.
    Image of System. Front orientation. Contains Annotated. For Stepped Nuts. Spring Lock Washer.
    Image of Attribute. Front orientation. Contains MultipleImages. For Chamfered Nuts.

    For Chamfered Nuts

    Image of Attribute. Front orientation. Contains MultipleImages. For Stepped Nuts.

    For Stepped Nuts

    Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle. They also have an inner tab that sits in the shaft or spindle’s keyway to prevent the nut from loosening.
    Steel—Steel washers are strong and flexible.
    External Tooth—Washers with external teeth grip components using their teeth, in addition to spring tension.
    DIN 462 and DIN 5406—DIN 462 and DIN 5406 washers meet international standards for lock washer dimensions. Pair DIN 462 washers with DIN 1804 bearing nuts, and DIN 5406 washers with DIN 981 bearing nuts.
    Tab,
    mm
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Wd.
    Dp.
    Overall
    Ht., mm
    Tooth
    Location
    Hardness
    Specs.
    Met
    For Bearing
    Nut Specs. Met
    Each
    For Chamfered Nuts
     
    Steel
    M50
    		50.00074.0001.2506.0002.5004.500ExternalNot RatedDIN 5406DIN 98100000000000000
     
    For Stepped Nuts
     
    Steel
    M50
    		50.00075.0001.2008.0002.5005.000—Not RatedDIN 462DIN 18040000000000000
     
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