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    1 Product
    About Hex Head Screws and Bolts
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    Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.

    Mil. Spec. Steel Phillips Hex Head Screws

    Image of Product. Front orientation. Hex Head Screws. Mil. Spec. Steel Phillips Hex Head Screws.
    No wrench, no worries. If there isn't enough room to turn these screws with a wrench, slip a screwdriver into their Phillips drive. These screws are manufactured and tested to meet strict U.S. military specifications for material and construction. When using a wrench or socket, the head's six flat sides prevent slipping and rounding off the drive.
    Length is measured from under the head.
    High-Strength Fastener—Commonly used to fasten components in valves, pumps, motors, and other high-stress applications. These screws have a tensile strength of 125,000 to 160,000 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.
    Head
    Lg.
    Wd.
    Ht.
    Threading
    Thread
    Spacing
    Tensile Strength,
    psi
    Mil. Spec.
    Pkg.
    Qty.
    Pkg.
    High-Strength Cadmium-Plated Steel
     
    4-40
    1/2"3/16"1/16"Partially ThreadedCoarse
    		160,000NAS1801-04-81090046A102000000
    Mil. Spec. Cadmium-Plated Steel Hex Head Screw with Phillips Drive, 4-40 Thread Size, 1/2" Long
    $23.78 per pack of 10 /
    $2.38 per piece
    Pack of 10In stock
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