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    1 Product

    Mil. Spec. Washers

    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    These washers are manufactured and tested to strict U.S. military standards for material and construction. They take the pressure off screws and nuts to protect mounting surfaces.
    Copper
    These have the best conductivity of all our metal washers. They're often used to secure electrical connections inside breaker panels and to fasten components on printed circuit boards. They're also the softest of all our metal washers, so they won't damage screws and nuts. However, copper washers aren't as corrosion resistant as brass washers, and will develop a green patina over time.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Pkg.
    Qty.
    Pkg.
    Copper
    No. 4
    		0.125"0.312"0.025" to 0.040"MS15795-50450000000000000000
    Copper Mil. Spec. Washer for Number 4 Screw Size, 0.125" ID, 0.312" OD, MS15795-504
    Pack of 50Delivers Monday 7-9 am
     
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