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    16 Products
    About Hex Nuts
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    Choose a hex nut with the right profile, material, and strength for your application.

    Material

    Performance

    Mil. Spec. Hex Nuts

    These nuts are manufactured and tested to strict U.S. military standards for material and construction.
    Low-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Mil. Spec. Hex Nuts.
    Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength nuts. They are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Cadmium Yellow-Chromate-Plated Steel— The plating creates a barrier against rust, so these nuts are suitable for most wet and outdoor environments. They also thread on smoothly without sticking.
    Thread
    Size
    Wd.
    Ht.
    Mil. Spec.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Cadmium Yellow-Chromate-Plated Steel
    2-56
    		3/16"1/16"Fed. Spec. FF-N-836, MS35649-222—1091813A110000000
    4-40
    		1/4"3/32"Fed. Spec. FF-N-836, MS35649-242Material Certificate
    		5091813A12000000
    6-32
    		5/16"7/64"Fed. Spec. FF-N-836, MS35649-262—1091813A1300000
    8-32
    		11/32"1/8"Fed. Spec. FF-N-836, MS35649-282Material Certificate
    		5091813A14000000
    10-24
    		3/8"1/8"Fed. Spec. FF-N-836, MS35649-202—5091813A15000000
    1/4"-20
    		7/16"3/16"Fed. Spec. FF-N-836, MS35649-2252—5091813A17000000
    5/16"-18
    		9/16"7/32"Fed. Spec. FF-N-836, MS35649-2312Material Certificate
    		2591813A18000000
    3/8"-16
    		5/8"1/4"Fed. Spec. FF-N-836, MS35649-2382—2591813A19000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Mil. Spec. Hex Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Mil. Spec.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    2-56
    		3/16"1/16"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-224Material Certificate
    		2591240A003000000
    4-40
    		1/4"3/32"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-244Material Certificate
    		2591240A00500000
    6-32
    		5/16"7/64"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-264Material Certificate
    		2591240A00700000
    8-32
    		11/32"1/8"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-284Material Certificate
    		1091240A0090000
    10-24
    		3/8"1/8"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-204—1091240A0110000
    1/4"-20
    		7/16"3/16"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-2254Material Certificate
    		1091240A0290000
    5/16"-18
    		9/16"7/32"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-2314—591240A0300000
    3/8"-16
    		5/8"1/4"Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35, MS35649-2384Material Certificate
    		591240A03100000
     
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