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    1 Product
    About Hex Head Screws and Bolts
    industrial info icon

    Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.

    Mil. Spec. Steel Cotter-Pin-Locking Hex Head Screws

    Image of ProductInUse. Front orientation. Contains Annotated, Border. Hex Head Screws. Mil. Spec. Steel Cotter-Pin-Locking Hex Head Screws.
    Image of Product. Front orientation. Hex Head Screws. Mil. Spec. Steel Cotter-Pin-Locking Hex Head Screws, Partially Threaded.

    Partially

    Threaded

    Manufactured and tested to meet strict U.S. military specifications for material and construction. These screws secure rotating parts subjected to vibration, such as the wheels on carts and hand trucks. A cotter pin (not included) slides through the hole in the shank of these screws to keep nuts from loosening. They hold stronger than screws with threadlocker and lockwashers, but they aren’t recommended for high-vibration applications because prolonged stress can shear the pin. The head's six flat sides keep wrenches and sockets from slipping and rounding off the drive.
    Length is measured from under the head.
    Medium-Strength Fastener—Your go-to screws for fastening most machinery and equipment. They have tensile strengths from 90,000 to 120,000 psi.
    Cadmium-Plated Steel—The plating reduces friction between the screw and your mounting surface to prevent sticking when you tighten or loosen screws. It also creates a barrier against rust.
    Grip Length—Screws with a grip length have a precisely measured unthreaded section under the head, called a grip. It's stronger than the threaded section, so you can place it in joints exposed to sideways forces.
    Head
    Lg.
    Grip
    Lg.
    Wd.
    Ht.
    Hole
    Dia.
    For Cotter
    Pin Dia.
    Threading
    Thread
    Spacing
    Tensile Strength,
    psi
    Mil.
    Spec.
    Pkg.
    Qty.
    Pkg.
    Medium-Strength Cadmium-Plated Steel
     
    1/2"-20
    1 3/32"5/16"3/4"19/64"0.106"3/32"Partially ThreadedFine
    		120,000AN8-10194622A241000000
    Mil. Spec. Cadmium-Plated Steel Hex Head Screw, Cotter-Pin-Locking, 1/2"-20 Thread Size, 1-3/32" Long
    Pack of 1In stock
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