McMaster-Carr logo
    Filter by
    Tooth Location
    System of Measurement
    Screw Size
    Industrial Info Snippet
    Material
    Washer Type
    Specifications Met
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    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)
    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.
    Internal Tooth
    Image of Product. Front orientation. Lock Washers. Mil. Spec., Tooth Washer, Internal Tooth.
    Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
    Corrosion-Resistant Cadmium-Plated Steel—The finish creates a better barrier against rust than zinc plating for use in wet and outdoor environments.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant Cadmium-Plated Steel
    1/2"
    		0.512"0.900"0.037" to 0.045"MS35333-44, NASM35333ASME B18.21.12596551A280000000
    Mil. Spec. Internal-Tooth Lock Washer for 1/2" Screw Size, Cadmium-Plated Steel, MS35333-44
    $10.47 per pack of 25 /
    $0.42 per piece
    Pack of 25In stock
    Compatible Products for This Lock Washer
     
    back to top