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  • FF-W-100 Military Spec Fasteners

    • FF-W-100 Military Specifications Fasteners

    Mil spec FF-W-100 covers tooth lock washers for use in assemblies with bolts, studs and machine screws.

    Type I – Internal tooth flat

    • Grade A - Regular
    • Grade B – Heavy duty

    Type II – External tooth flat

    Type III – Internal-external tooth flat

    Type IV – External tooth countersunk (80˚-82˚)

    Type V – External tooth countersunk (99˚-101˚)

    • Style 1 – Twisted teeth
    • Style 2 – Teeth with up-and-down bent edges