Mil. Spec. Machine Screw Nuts

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28 Products

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.

	Wd.	Ht.	Mil. Specs. Met	Specs. Met	Pkg. Qty.		Pkg.
Cadmium Yellow-Chromate-Plated Steel


	2-56	3/16"	1/16"	MS35649-222	Fed. Spec. FF-N-836	10	000000000	000000
	4-40	1/4"	3/32"	MS35649-242	Fed. Spec. FF-N-836	50	000000000	00000
	6-32	5/16"	7/64"	MS35649-262	Fed. Spec. FF-N-836	10	000000000	0000
	8-32	11/32"	1/8"	MS35649-282	Fed. Spec. FF-N-836	50	000000000	00000
	10-24	3/8"	1/8"	MS35649-202	Fed. Spec. FF-N-836	50	000000000	00000
	10-32	3/8"	1/8"	MS35650-302	Fed. Spec. FF-N-836	50	000000000	00000
	1/4"-20	7/16"	3/16"	MS35649-2252	Fed. Spec. FF-N-836	50	000000000	00000
	5/16"-18	9/16"	7/32"	MS35649-2312	Fed. Spec. FF-N-836	25	000000000	00000
	3/8"-16	5/8"	1/4"	MS35649-2382	Fed. Spec. FF-N-836	25	000000000	00000

Corrosion-Resistant Stainless Steel

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.

	Wd.	Ht.	Mil. Specs. Met	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel


	0-80	5/32"	3/64"	MS35650-314	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	5	000000000	00000
	2-56	3/16"	1/16"	MS35649-224	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	25	000000000	00000
	4-40	1/4"	3/32"	MS35649-244	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	25	000000000	0000
	6-32	5/16"	7/64"	MS35649-264	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	25	000000000	00000
	8-32	11/32"	1/8"	MS35649-284	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	10	000000000	0000
	10-24	3/8"	1/8"	MS35649-204	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	10	000000000	0000
	10-32	3/8"	1/8"	MS35650-304	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	10	000000000	0000
	1/4"-20	7/16"	3/16"	MS35649-2254	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	10	000000000	0000
	1/4"-28	7/16"	3/16"	MS35650-3254	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	5	000000000	0000
	5/16"-18	9/16"	7/32"	MS35649-2314	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	5	000000000	0000
	5/16"-24	9/16"	7/32"	MS35650-3314	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	1	000000000	0000
	3/8"-16	5/8"	1/4"	MS35649-2384	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	5	000000000	0000
	3/8"-24	5/8"	1/4"	MS35650-3384	Fed. Spec. FF-N-836, Fed. Spec. QQ-P-35	1	000000000	0000

Mil. Spec. Narrow-Profile Hex Nuts

These nuts are manufactured and tested to strict U.S. military standards for material and construction. They are about 20% narrower to fit in tight spots where standard-profile nuts won't fit. Also known as small-pattern hex nuts.

Corrosion-Resistant Stainless Steel

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.

	Wd.	Ht.	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel


	0-80	1/8"	3/64"	Fed. Spec. FF-N-836, NAS671C0	10	000000000	000000
	2-56	5/32"	1/16"	Fed. Spec. FF-N-836, NAS671C2	10	000000000	00000
	4-40	3/16"	1/16"	Fed. Spec. FF-N-836, NAS671C4	10	000000000	00000
	6-32	1/4"	3/32"	Fed. Spec. FF-N-836, NAS671C6	10	000000000	00000
	8-32	5/16"	7/64"	Fed. Spec. FF-N-836, NAS671C8	10	000000000	00000
	10-32	11/32"	1/8"	Fed. Spec. FF-N-836, NAS671C10	5	000000000	00000