Uncoated Brass Hex Nuts | McMaster-Carr

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EAR99

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176 Products

About Hex Nuts

Choose a hex nut with the right profile, material, and strength for your application.

Hex Nut Profile

Standard

The most common hex nuts for fastening machinery and equipment

82 products

Thin

Fit in spaces with low clearance

56 products

Hex Nut Profile

Heavy

Wider and taller than standard nuts to handle heavier loads

15 products

Thin Heavy

Fit in low-clearance spaces and handle heavier loads than standard nuts

12 products

Hex Nuts

The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.

Brass

Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.

	Thread Size	Wd.	Ht.	Specs. Met	Pkg. Qty.		Pkg.
Brass



		000-120	5/64"	1/32"	—	10	92736A110	000000


		00-90	5/64"	3/64"	—	10	92736A112	00000
		00-96	5/64"	3/64"	—	1	92736A132	0000
		0-80	5/32"	3/64"	—	100	92671A115	0000
		1-64	5/32"	3/64"	—	100	92671A002	0000
		1-72	5/32"	3/64"	—	100	92671A125	0000
		2-56	3/16"	1/16"	—	100	92671A003	0000
		2-64	3/16"	1/16"	—	100	92671A135	0000
		3-48	3/16"	1/16"	—	100	92671A004	0000
		3-56	3/16"	1/16"	—	100	92671A145	0000
		4-36	1/4"	3/32"	—	50	92671A236	0000


		4-40	1/4"	3/32"	—	100	92671A005	0000
		4-48	1/4"	3/32"	—	100	92671A155	0000
		5-40	5/16"	7/64"	—	100	92671A006	00000
		5-44	5/16"	7/64"	—	100	92671A165	00000
		6-32	5/16"	7/64"	—	100	92671A007	0000
		6-40	5/16"	7/64"	—	100	92671A175	00000
		8-32	11/32"	1/8"	—	100	92671A009	00000
		8-36	11/32"	1/8"	—	50	92671A185	0000
		10-24	3/8"	1/8"	—	100	92671A011	00000
		10-32	3/8"	1/8"	—	100	92671A195	00000


		12-24	7/16"	5/32"	—	50	92671A013	00000
		12-28	7/16"	5/32"	—	50	92671A205	00000
		1/4"-20	7/16"	3/16"	—	50	92671A029	00000
		1/4"-20	7/16"	7/32"	—	50	92676A029	00000
		1/4"-28	7/16"	7/32"	—	50	92676A429	00000
		5/16"-18	1/2"	17/64"	—	50	92676A030	00000
		5/16"-24	1/2"	17/64"	—	25	92676A430	00000
		3/8"-16	9/16"	21/64"	—	25	92676A450	00000
		3/8"-24	9/16"	21/64"	—	10	92676A455	0000
		7/16"-14	11/16"	3/8"	—	10	92676A460	0000


		7/16"-20	11/16"	3/8"	—	10	92676A465	0000
		1/2"-13	3/4"	7/16"	—	10	92676A470	0000
		1/2"-20	3/4"	7/16"	—	5	92676A475	0000
		9/16"-12	7/8"	31/64"	—	5	92676A480	0000
		5/8"-11	15/16"	35/64"	—	5	92676A485	00000
		5/8"-18	15/16"	35/64"	—	1	92676A490	0000
		3/4"-10	1 1/8"	41/64"	—	5	92676A495	00000
		3/4"-16	1 1/8"	41/64"	—	1	92676A510	0000
		7/8"-9	1 5/16"	3/4"	—	1	92676A515	0000
		7/8"-14	1 5/16"	3/4"	—	1	92676A437	0000


		1"-8	1 1/2"	55/64"	—	1	92676A038	0000
		1 1/8"-7	1 11/16"	31/32"	—	1	92676A039	00000
		1 1/4"-7	1 7/8"	1 1/16"	—	1	92676A040	00000
		1 1/2"-6	2 1/4"	1 9/32"	—	1	92676A041	00000
		M1 × 0.25 mm	2.5 mm	0.8 mm	DIN 934	1	90690A111	0000
		M1.2 × 0.25 mm	3 mm	1 mm	DIN 934	5	90690A112	0000
		M1.4 × 0.3 mm	3 mm	1.2 mm	DIN 934	5	90690A113	0000
		M1.6 × 0.35 mm	3.2 mm	1.3 mm	DIN 934	5	90690A114	0000
		M1.7 × 0.35 mm	3.5 mm	1.4 mm	DIN 934	5	90690A115	0000
		M2 × 0.4 mm	4 mm	1.6 mm	DIN 934	100	90690A030	0000

M2.5 × 0.45 mm	5 mm	2 mm	DIN 934	100	90690A035	0000
M2.6 × 0.45 mm	5 mm	2 mm	DIN 934	50	90690A026	0000
M3 × 0.5 mm	5.5 mm	2.4 mm	DIN 934	100	90690A037	0000
M3.5 × 0.6 mm	6 mm	2.8 mm	DIN 934	100	90690A036	00000
M4 × 0.7 mm	7 mm	3.2 mm	DIN 934	100	90690A044	00000
M5 × 0.8 mm	8 mm	4 mm	DIN 934	50	90690A046	00000
M6 × 0.75 mm	10 mm	5 mm	DIN 934	1	96815A110	0000
M6 × 1 mm	10 mm	5 mm	DIN 934	25	90690A047	0000
M7 × 1 mm	11 mm	5.5 mm	DIN 934	10	90690A052	0000
M8 × 1 mm	13 mm	6.5 mm	DIN 934	5	96815A120	0000
M8 × 1.25 mm	13 mm	6.5 mm	DIN 934	10	90690A055	0000
M10 × 1 mm	17 mm	8 mm	DIN 934	5	96815A130	00000
M10 × 1.5 mm	17 mm	8 mm	DIN 934	10	90690A059	00000
M12 × 1 mm	19 mm	10 mm	DIN 934	1	96815A140	0000
M12 × 1.75 mm	19 mm	10 mm	DIN 934	5	90690A063	00000
M14 × 1.5 mm	22 mm	11 mm	DIN 934	1	96815A170	0000
M14 × 2 mm	22 mm	11 mm	DIN 934	5	90690A064	00000
M16 × 1.5 mm	24 mm	13 mm	DIN 934	1	96815A180	0000
M16 × 2 mm	24 mm	13 mm	DIN 934	1	90690A060	0000
M18 × 1.5 mm	27 mm	15 mm	DIN 934	1	96815A190	00000
M18 × 2.5 mm	27 mm	15 mm	DIN 934	1	90690A065	0000
M20 × 1.5 mm	30 mm	16 mm	DIN 934	1	96815A210	0000
M20 × 2.5 mm	30 mm	16 mm	DIN 934	1	90690A070	0000
M22 × 1.5 mm	32 mm	18 mm	DIN 934	1	96815A220	00000
M24 × 1.5 mm	36 mm	19 mm	DIN 934	1	96815A230	00000
M24 × 2 mm	36 mm	19 mm	DIN 934	1	96815A240	00000
M24 × 3 mm	36 mm	19 mm	DIN 934	1	90690A080	00000
M27 × 3 mm	41 mm	22 mm	DIN 934	1	90690A117	00000
M30 × 3.5 mm	46 mm	24 mm	DIN 934	1	90690A090	00000
M33 × 3.5 mm	50 mm	26 mm	DIN 934	1	90690A118	00000
M36 × 1.5 mm	55 mm	29 mm	DIN 934	1	96815A270	00000

Thin-Profile Hex Nuts

About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.

Brass

	Wd.	Ht.	Specs. Met	Pkg. Qty.		Pkg.
Brass



	1/4"-20	7/16"	5/32"	—	50	92174A029	000000


	1/4"-28	7/16"	5/32"	—	50	92174A661	00000
	5/16"-18	1/2"	3/16"	—	25	92174A030	0000
	5/16"-24	1/2"	3/16"	—	25	92174A662	0000
	3/8"-16	9/16"	7/32"	—	25	92174A031	00000
	3/8"-24	9/16"	7/32"	—	25	92174A663	00000
	7/16"-14	11/16"	1/4"	—	10	92174A425	0000
	7/16"-20	11/16"	1/4"	—	10	92174A430	0000
	1/2"-13	3/4"	5/16"	—	10	92174A435	0000
	1/2"-20	3/4"	5/16"	—	10	92174A440	00000
	9/16"-12	7/8"	5/16"	—	5	92174A034	0000


	9/16"-18	7/8"	5/16"	—	1	92174A039	0000
	5/8"-11	15/16"	3/8"	—	5	92174A455	0000
	5/8"-18	15/16"	3/8"	—	5	92174A460	00000
	3/4"-10	1 1/8"	27/64"	—	5	92174A465	00000
	3/4"-16	1 1/8"	27/64"	—	5	92174A470	00000
	7/8"-9	1 5/16"	31/64"	—	1	92174A475	0000
	7/8"-14	1 5/16"	31/64"	—	1	92174A668	0000
	1"-8	1 1/2"	35/64"	—	1	92174A038	0000
	1"-14	1 1/2"	35/64"	—	1	92174A675	0000
	1 1/8"-7	1 11/16"	39/64"	—	1	92174A669	0000


	1 1/8"-12	1 11/16"	39/64"	—	1	92174A680	00000
	1 1/4"-7	1 7/8"	23/32"	—	1	92174A682	00000
	1 1/4"-12	1 7/8"	23/32"	—	1	92174A685	00000
	1 1/2"-6	2 1/4"	27/32"	—	1	92174A041	00000
	1 1/2"-12	2 1/4"	27/32"	—	1	92174A690	00000
	M2 × 0.4 mm	4 mm	1.2 mm	DIN 439B, ISO 4035	50	93187A110	0000
	M2.5 × 0.45 mm	5 mm	1.6 mm	DIN 439B, ISO 4035	50	93187A112	0000
	M3 × 0.5 mm	5.5 mm	1.8 mm	DIN 439B, ISO 4035	100	93187A100	0000
	M4 × 0.7 mm	7 mm	2.2 mm	DIN 439B, ISO 4035	100	93187A150	00000
	M5 × 0.8 mm	8 mm	2.7 mm	DIN 439B, ISO 4035	100	93187A200	00000


	M6 × 1 mm	10 mm	3.2 mm	DIN 439B, ISO 4035	50	93187A250	00000
	M8 × 1.25 mm	13 mm	4 mm	DIN 439B, ISO 4035	25	93187A300	00000
	M10 × 1.5 mm	17 mm	5 mm	DIN 439B, ISO 4035	5	93187A350	0000
	M10 × 1.5 mm	17 mm	6 mm	DIN 936	5	97057A110	0000
	M12 × 1.75 mm	19 mm	6 mm	DIN 439B, ISO 4035	10	93187A400	00000
	M12 × 1.75 mm	19 mm	7 mm	DIN 936	5	97057A120	00000
	M14 × 2 mm	22 mm	8 mm	DIN 936	1	97057A130	0000
	M16 × 2 mm	24 mm	8 mm	DIN 439B, ISO 4035	1	93187A113	0000
	M16 × 2 mm	24 mm	8 mm	DIN 936	10	97057A140	00000
	M20 × 2.5 mm	30 mm	9 mm	DIN 936	1	97057A150	0000


	M24 × 3 mm	36 mm	10 mm	DIN 936	1	97057A160	0000

Heavy-Profile Hex Nuts

About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.

Brass

	Wd.	Ht.	Pkg. Qty.		Pkg.
Brass



	1/4"-20	1/2"	15/64"	25	92680A029	00000


	5/16"-18	9/16"	19/64"	25	92680A610	00000
	3/8"-16	11/16"	23/64"	10	92680A615	00000
	7/16"-14	3/4"	27/64"	10	92680A620	00000
	1/2"-13	7/8"	31/64"	5	92680A625	0000
	9/16"-12	15/16"	35/64"	1	92680A627	0000
	5/8"-11	1 1/16"	39/64"	5	92680A630	00000
	3/4"-10	1 1/4"	47/64"	1	92680A635	0000
	7/8"-9	1 7/16"	55/64"	1	92680A037	0000
	1"-8	1 5/8"	63/64"	1	92680A038	00000
	1 1/8"-7	1 13/16"	1 7/64"	1	92680A041	00000


	1 1/4"-7	2"	1 7/32"	1	92680A049	00000
	1 3/8"-6	2 3/16"	1 11/32"	1	92680A055	00000
	1 1/2"-6	2 3/8"	1 15/32"	1	92680A058	00000
	1 3/4"-5	2 3/4"	1 23/32"	1	92680A061	00000

Left-Hand-Thread Thin-Profile Hex Nuts

These nuts tighten when turned to the left. Use them with left-hand rods and screws to prevent counterclockwise-moving parts from loosening. About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.

Brass

	Wd.	Ht.	Specs. Met		Each
Brass



	6-32	5/16"	3/32"	—	92117A550	00000


	8-32	11/32"	7/64"	—	92117A570	0000
	10-32	3/8"	7/64"	—	92117A610	0000
	5/8"-18	15/16"	3/8"	—	92117A780	00000
	3/4"-10	1 1/8"	27/64"	—	92117A790	00000
	1"-12	1 1/2"	35/64"	—	92117A860	00000
	1"-14	1 1/2"	35/64"	—	92117A870	00000
	1 1/4"-7	1 7/8"	23/32"	—	92117A910	00000
	1 1/2"-12	2 1/4"	27/32"	—	92117A940	00000
	M5 × 0.8 mm	8 mm	2.7 mm	DIN 439B, ISO 4035	92117A130	0000
	M6 × 1 mm	10 mm	3.2 mm	DIN 439B, ISO 4035	92117A140	0000


	M14 × 1.5 mm	22 mm	7 mm	DIN 439B, ISO 4035	92117A360	00000
	M16 × 1.5 mm	24 mm	8 mm	DIN 439B, ISO 4035	92117A370	00000
	M18 × 1.5 mm	27 mm	9 mm	DIN 439B, ISO 4035	92117A380	00000

Narrow-Profile Hex Nuts

When you have limited space for tightening with a wrench, use these nuts. Since they’re about 20% narrower, they fit in tight spots where standard-profile nuts won't fit. Also known as small-pattern hex nuts.

Brass

	Wd.	Ht.	Pkg. Qty.		Pkg.
Brass



	0-80	3/32"	3/64"	10	92736A001	000000


	1-72	7/64"	1/16"	10	92736A002	00000
	2-56	1/8"	5/64"	10	92736A101	00000
	2-56	5/32"	1/16"	100	95130A105	0000
	4-40	3/16"	1/16"	100	95130A110	0000
	6-32	1/4"	3/32"	100	95130A120	0000
	8-32	1/4"	3/32"	100	95130A130	0000
	8-32	5/16"	7/64"	100	95130A140	0000
	10-24	5/16"	7/64"	100	95130A150	00000
	10-24	11/32"	1/8"	100	95130A180	00000
	10-32	5/16"	7/64"	100	95130A160	00000

Thin-Heavy-Profile Hex Nuts

About half the height of standard-profile hex nuts and 10% wider, these fit in spaces with low clearance and handle heavier loads by distributing them over a larger area. You can also use them as jam nuts by threading them against another hex nut to hold it in place.

Brass

	Wd.	Ht.	Pkg. Qty.		Pkg.
Brass



	1/4"-20	1/2"	11/64"	25	92683A029	00000


	5/16"-18	9/16"	13/64"	25	92683A840	00000
	3/8"-16	11/16"	15/64"	25	92683A845	00000
	7/16"-14	3/4"	17/64"	10	92683A847	0000
	1/2"-13	7/8"	19/64"	10	92683A855	00000
	5/8"-11	1 1/16"	23/64"	5	92683A860	00000
	3/4"-10	1 1/4"	27/64"	1	92683A865	0000
	7/8"-9	1 7/16"	31/64"	1	92683A869	0000
	1"-8	1 5/8"	35/64"	1	92683A872	0000
	1 1/8"-7	1 13/16"	39/64"	1	92683A879	0000
	1 1/4"-7	2"	23/32"	1	92683A882	00000


	1 1/2"-6	2 3/8"	27/32"	1	92683A885	00000