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    1 Product

    Mil. Spec. Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Mil. Spec. Nylon-Insert Locknuts.
    These locknuts are manufactured and tested to strict U.S. military standards for material and construction. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Cadmium Yellow-Chromate-Plated Steel—These locknuts have good lubricity to thread on smoothly and ease installation. The plating also creates a barrier against rust that's comparable to zinc-yellow-chromate plating.
    Thread
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    Cadmium Yellow-Chromate-Plated Steel
    4-40
    		1/4"5/32"MS21044-N0425010000000000000000
    Mil. Spec. Nylon-Insert Locknut, Low-Strength Steel, 4-40 Thread Size, MS21044-N04
    Pack of 10In stock
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