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  • MIL-F-19700 Military Spec Fasteners

    • MIL-F-19700 Military Specifications Fasteners

    Mil spec MIL-F-19700 describes the characteristics of nonmagnetic, screw threaded fasteners and related items that are dimensionally in conformance to recognized military and industrial standards. The intent of this specification is to supplement, not supersede, the specifications normally used for the acquisition of threaded fasteners and related items.

    Bolts

    • Type I – Round head
    • Type II – Hexagon head
    • Type III – Hexagon head, UNC-3A (for use with type V self-locking nuts)
    • Type IV – Finished neck, countersunk, flat head

    Machine screws

    • Type I – Flat head, 82˚, cross recessed
    • Type II – Pan head, cross recessed
    • Type III – Fillister head, slotted and drilled
    • Type IV – Flat head, 82˚, slotted
    • Type V – Pan head, slotted

    Wood screws

    • Type I – Flat head, 82˚, cross recessed
    • Type II – Round head, cross recessed
    • Type III – Oval head, cross recessed
    • Type IV – Flat head, 82˚, slotted
    • Type V – Round head, slotted
    • Type VI – Oval head, slotted

    Lag screws

    • Type I – Square bolt head
    • Type II – Slotted countersunk head

    Studs

    • Type I – Full body

    Nuts

    • Type I – Hexagon, top chamfered, machine screw
    • Type II – Hexagon, regular finished
    • Type III – Hexagon, regular finished jam
    • Type IV – Square, regular
    • Type V – Hexagon, self locking nylon insert (Class C material only).

    Cap screws

    • Type I – Hexagon head

    Pins

    • Type I – Split cotter

    Washers

    • Type I – Metal, flat, plain, round
    • Type II – Spring, nonlink lock
    • Type III – Internal tooth, flat lock
    • Type IV – External tooth, flat lock