Stainless Steel Square Nuts

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73 Products

18-8 Stainless Steel Square Nuts

These square nuts have good chemical resistance and may be mildly magnetic. Large flat sides make them easy to grip with a wrench and keep them from rotating in channels and square holes.

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



	2-56	3/16"	1/16"	—	100	94785A509	000000


	4-40	1/4"	3/32"	—	100	94785A511	00000
	6-32	5/16"	7/64"	—	100	94785A007	00000
	8-32	11/32"	1/8"	—	100	94785A009	00000
	10-24	3/8"	1/8"	—	100	94785A013	00000
	10-32	3/8"	1/8"	—	100	94785A411	00000
	1/4"-20	7/16"	3/16"	—	50	94785A415	00000
	1/4"-28	7/16"	3/16"	—	25	94785A439	0000
	5/16"-18	9/16"	7/32"	—	25	94785A419	00000
	5/16"-24	9/16"	7/32"	—	10	94785A441	0000
	3/8"-16	5/8"	1/4"	—	25	94785A423	00000


	3/8"-24	5/8"	1/4"	—	10	94785A442	0000
	7/16"-14	3/4"	3/8"	—	5	94785A443	00000
	7/16"-20	3/4"	3/8"	—	5	94785A445	00000
	1/2"-13	13/16"	7/16"	—	5	94785A427	0000
	5/8"-11	1"	35/64"	—	1	94785A431	0000
	3/4"-10	1 1/8"	21/32"	—	1	94785A435	0000
	1"-8	1 1/2"	7/8"	—	1	94785A438	00000
	M5 × 0.8 mm	8 mm	4 mm	DIN 557	50	90225A101	0000
	M6 × 1 mm	10 mm	5 mm	DIN 557	50	90225A102	00000
	M8 × 1.25 mm	13 mm	6.5 mm	DIN 557	25	90225A103	0000


	M10 × 1.5 mm	17 mm	8 mm	DIN 557	10	90225A104	0000
	M12 × 1.75 mm	19 mm	10 mm	DIN 557	5	90225A105	00000
	M16 × 2 mm	24 mm	13 mm	DIN 557	1	90225A106	00000

18-8 Stainless Steel Thin-Profile Square Nuts

Two-thirds the height of typical square nuts and made of 18-8 stainless steel, these metric nuts are designed for use in low-clearance applications in humid, damp, and washdown environments. They’re often called square jam nuts because they can be jammed together to hold each other in place. They’re easily gripped with a wrench due to their flat, broad sides, which also prevent them from rotating in channels and square holes. Compared to hex nuts, a greater area is in contact with the fastened surface. And compared to steel nuts, they’re slightly less strong.

Black-Oxide 18-8 Stainless Steel—Black-oxide 18-8 stainless steel nuts have a dark surface color.

DIN 562—These nuts meet DIN 562, an international standard that signifies their material and dimensions are compatible with other products and tools.

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



	M2 × 0.4 mm	4	1.2	DIN 562	25	97258A121	000000


	M2.5 × 0.45 mm	5	1.6	DIN 562	25	97258A122	00000
	M3 × 0.5 mm	5.5	1.8	DIN 562	50	97258A101	0000
	M4 × 0.7 mm	7	2.2	DIN 562	50	97258A102	00000
	M5 × 0.8 mm	8	2.7	DIN 562	50	97258A103	00000
	M6 × 1 mm	10	3.2	DIN 562	50	97258A104	00000
	M8 × 1.25 mm	13	4	DIN 562	25	97258A105	00000
	M10 × 1.5 mm	17	5	DIN 562	10	97258A106	0000


	Black-Oxide 18-8 Stainless Steel



			M3 × 0.5 mm	5.5	1.8	DIN 562	10	97258A123	0000


			M4 × 0.7 mm	7	2.2	DIN 562	10	97258A124	0000

Highly Corrosion-Resistant 316 Stainless Steel Square Nuts

These square nuts have excellent resistance to chemicals and salt water. Large flat sides make them easy to grip with a wrench and keep them from rotating in channels and square holes.

	Wd.	Ht.	Pkg. Qty.		Pkg.
316 Stainless Steel



	4-40	1/4"	3/32"	100	92891A101	000000


	6-32	5/16"	7/64"	100	92891A500	00000
	8-32	11/32"	1/8"	50	92891A600	00000
	10-24	3/8"	1/8"	50	92891A700	00000
	10-32	3/8"	1/8"	50	92891A800	00000
	1/4"-20	7/16"	3/16"	25	92891A100	00000
	1/4"-28	7/16"	3/16"	25	92891A104	0000
	5/16"-18	9/16"	7/32"	10	92891A200	0000
	3/8"-16	5/8"	1/4"	10	92891A300	00000
	1/2"-13	13/16"	7/16"	1	92891A400	0000
	5/8"-11	1"	35/64"	1	92891A102	0000


	3/4"-10	1 1/8"	21/32"	1	92891A103	00000

Stainless Steel Snap-In Nuts

For excellent corrosion resistance in most environments, these nuts are made of 18-8 stainless steel. Snap them into square holes in thin material, and the mounting legs expand to lock them in place. Also known as cage nuts, the threads float inside the cage, so you can fasten a bolt at a slight angle to align off-center parts. These nuts are often used to mount servers and other equipment in electronics racks. They may be mildly magnetic.

Install these nuts by hand, with pliers, or with a snap-in nut installation and removal tool.

Rectangular with Floating Nut

	For Panel Thk.	Square Hole Size	Wd.	Head Ht.	Pkg. Qty.		Pkg.
18-8 Stainless Steel



	10-24	0.025" to 0.063"	0.375" to 0.38"	0.52"	0.25"	5	90680A711	00000


	10-24	0.064" to 0.105"	0.375" to 0.38"	0.52"	0.25"	5	90680A712	00000
	10-24	0.093" to 0.126"	0.343" to 0.38"	0.52"	0.25"	5	90680A713	00000
	10-24	0.125" to 0.156"	0.375" to 0.38"	0.52"	0.25"	5	90680A714	00000
	10-32	0.025" to 0.063"	0.375" to 0.38"	0.52"	0.25"	5	90680A715	0000
	10-32	0.064" to 0.105"	0.375" to 0.38"	0.49"	0.25"	5	90680A300	0000
	10-32	0.093" to 0.126"	0.343" to 0.38"	0.52"	0.25"	5	90680A716	0000
	10-32	0.125" to 0.156"	0.375" to 0.38"	0.52"	0.25"	5	90680A717	00000
	1/4"-20	0.025" to 0.063"	0.375" to 0.38"	0.52"	0.25"	5	90680A726	0000
	1/4"-20	0.064" to 0.105"	0.375" to 0.38"	0.52"	0.25"	5	90680A727	0000
	1/4"-20	0.093" to 0.126"	0.375" to 0.38"	0.52"	0.25"	5	90680A728	0000


	1/4"-20	0.125" to 0.156"	0.343" to 0.38"	0.52"	0.25"	5	90680A310	0000
	5/16"-18	0.093" to 0.126"	0.503" to 0.508"	0.66"	0.29"	1	90680A111	0000
	M5 × 0.8 mm	0.7 mm to 1.6 mm	0.343" to 0.38"	0.52"	0.25"	5	90680A718	0000
	M5 × 0.8 mm	1.7 mm to 2.6 mm	0.343" to 0.38"	0.52"	0.25"	5	90680A719	0000
	M5 × 0.8 mm	2.4 mm to 3.2 mm	0.343" to 0.38"	0.52"	0.25"	5	90680A721	0000
	M5 × 0.8 mm	3.2 mm to 3.9 mm	0.375" to 0.38"	0.52"	0.25"	5	90680A722	0000
	M6 × 1 mm	0.7 mm to 1.6 mm	0.343" to 0.38"	0.52"	0.25"	5	90680A729	0000
	M6 × 1 mm	1.7 mm to 2.6 mm	0.375" to 0.38"	0.52"	0.25"	5	90680A723	0000
	M6 × 1 mm	2.4 mm to 3.2 mm	0.343" to 0.38"	0.52"	0.25"	5	90680A724	0000
	M6 × 1 mm	3.2 mm to 3.9 mm	0.375" to 0.38"	0.52"	0.25"	5	90680A725	0000

Slot-Adapting Square Strut Channel Nuts

Convert strut channel slots into threaded holes. These nuts cover slotted openings to keep threaded rods, bolts, and other hardware centered.

304 Stainless Steel—The choice for wet and outdoor environments, these resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		For Channel
	Thread Size	Ht.	Wd.	Ht.		Each
304 Stainless Steel



		1/4"-20	13/16", 1 5/8", 2 7/16", 3 1/4"	1 5/8"	1/4"	6246N15	00000


		3/8"-16	13/16", 1 5/8", 2 7/16", 3 1/4"	1 5/8"	3/8"	6246N16	0000
		1/2"-13	13/16", 1 5/8", 2 7/16", 3 1/4"	1 5/8"	1/2"	6246N17	0000

Self-Aligning Rectangular Weld Nuts

Help screws pass through perfectly every time. These nuts float inside a rectangular retainer that shifts and tilts to compensate for misalignment. A pilot tip locates the hole, and the retainer holds the nut in place during welding.

18-8 Stainless Steel with Stainless Steel Retainer—Suitable for outdoor use, both the nut and its retainer resist rust from water and mild chemicals. Weld them to stainless steel surfaces.

		Base
	Thread Size	Lg.	Wd.	Thk.	Ht.	Pkg. Qty.		Pkg.
18-8 Stainless Steel with Stainless Steel Retainer



		1/4"-20	1 3/4"	9/16"	1/16"	11/32"	1	90955A135	000000

High-Profile Sanitary Cap Nuts

Cover and protect 4" of exposed threads in food plants and other sanitary environments with these extra-long cap nuts. They are free of crevices where bacteria can grow and have a Buna-N seal on the base to keep liquid, debris, and other contaminants off the threads. The seal is made with metal and chemical additives, so you can find it with a metal detector or X-ray machine if it falls into your line. Nuts have a smooth, rounded head to create a finished look.

Stainless Steel

304 Stainless Steel—Won't corrode from frequent washdowns and can stand up to most cleaners and detergents.

	Thread Dp.	Wd.	Ht.	Seal Material	Food Industry Std.		Each
304 Stainless Steel



	5/8"-11	29/32"	7/8"	4 5/32"	Buna-N	FDA Compliant 21 CFR 177.2600	97513A101	000000


	3/4"-10	29/32"	1"	4 5/32"	Buna-N	FDA Compliant 21 CFR 177.2600	97513A102	00000