McMaster-Carr logo
    Filter by
    System of Measurement
    Screw Size
    Industrial Info Snippet
    Attribute Image
    Washer Type
    Tooth Location
    Material
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Hardness
    Specifications Met
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    Help me decide (beta)
    1 Product

    Mil. Spec. Tooth Lock Washers

    These washers are manufactured and tested to strict U.S. military standards for material and construction. They resist vibration better than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    External Tooth
    Image of Product. Bottom orientation. Lock Washers. Mil. Spec., Tooth Washer, External Tooth.
    Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding head screws.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil.
    Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    3/8"
    		0.384"0.694"0.032" to 0.040"MS35335-35ASME B18.21.15097775A524000000
    Mil. Spec. External-Tooth Lock Washer for 3/8" Screw Size, Zinc-Plated Steel, MS35335-35
    $11.21 per pack of 50 /
    $0.22 per piece
    Pack of 50In stock
    Compatible Products for This Lock Washer
     
    back to top