Class 10 Steel Hex Nuts | McMaster-Carr

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129 Products

About Hex Nuts

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

Hex Nuts

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

High-Strength Steel

Rated Grade 8, Grade C, or Class 10, these nuts are about 25% stronger than medium-strength steel nuts. They are commonly used to fasten components in valves, pumps, motors, and other high-stress applications. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

Material Certificate—Nuts include a report with a traceable lot number and a description of their chemical and physical properties.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.

Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

Black Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.

Steel—Best for dry environments since moisture will cause these nuts to rust.

Zinc-Flake-Coated Steel—The most durable zinc coating, zinc flake is a multilayer finish that resists wear for long-term rust protection. Similar to zinc yellow-chromate, it won't hold up to harsh chemicals like stainless steel can.

Blue Dyed Steel—These metric-sized nuts have a distinctive blue color, so you can easily tell them apart from inch nuts.

	Thread Size	Wd., mm	Ht., mm	Fastener Strength Grade/Class	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Zinc-Plated Steel



		M3 × 0.5 mm	5.5	2.4	Class 10	DIN 934	Material Certificate	100	90870A113	00000


		M4 × 0.7 mm	7	3.2	Class 10	DIN 934	—	100	90870A114	0000
		M5 × 0.8 mm	8	4	Class 10	DIN 934	—	100	90870A101	0000
		M6 × 1 mm	10	5.2	Class 10	DIN 934	—	100	90870A102	00000
		M8 × 1 mm	13	6.5	Class 10	DIN 934	—	25	4391N111	00000
		M8 × 1.25 mm	13	6.5	Class 10	DIN 934	—	50	90870A103	0000
		M10 × 1 mm	17	8	Class 10	DIN 934	—	10	4391N112	0000
		M10 × 1.25 mm	17	8	Class 10	DIN 934	—	10	4391N113	0000
		M10 × 1.5 mm	17	8	Class 10	DIN 934	—	25	90870A104	0000
		M12 × 1 mm	19	10	Class 10	DIN 934	—	5	4391N114	0000
		M12 × 1.25 mm	19	10	Class 10	DIN 934	—	10	4391N115	0000


		M12 × 1.5 mm	19	10	Class 10	DIN 934	—	10	4391N116	0000
		M12 × 1.75 mm	19	10	Class 10	DIN 934	—	25	90870A105	00000
		M14 × 1.5 mm	22	11	Class 10	DIN 934	—	10	4391N117	00000
		M14 × 2 mm	22	11	Class 10	DIN 934	—	10	90870A106	0000
		M16 × 1.5 mm	24	13	Class 10	DIN 934	—	5	4391N118	0000
		M16 × 2 mm	24	13	Class 10	DIN 934	—	10	90870A107	0000
		M18 × 1.5 mm	27	15	Class 10	DIN 934	—	5	4391N119	00000
		M18 × 2.5 mm	27	15	Class 10	DIN 934	—	5	90870A108	00000
		M20 × 1.5 mm	30	16	Class 10	DIN 934	—	5	4391N12	0000
		M20 × 2 mm	30	16	Class 10	DIN 934	—	1	4391N121	0000


		M20 × 2.5 mm	30	16	Class 10	DIN 934	—	5	90870A109	0000
		M22 × 1.5 mm	32	18	Class 10	DIN 934	—	1	4391N122	0000
		M22 × 2.5 mm	32	18	Class 10	DIN 934	—	1	90870A110	0000
		M24 × 1.5 mm	36	19	Class 10	DIN 934	—	1	4391N123	0000
		M24 × 2 mm	36	19	Class 10	DIN 934	—	1	4391N124	0000
		M24 × 3 mm	36	19	Class 10	DIN 934	—	1	90870A111	0000
		M27 × 2 mm	41	22	Class 10	DIN 934	—	1	4391N125	0000
		M27 × 3 mm	41	22	Class 10	DIN 934	—	1	90870A115	00000
		M30 × 1.5 mm	46	24	Class 10	DIN 934	—	1	4391N126	0000
		M30 × 2 mm	49	24	Class 10	DIN 934	—	1	4391N127	0000


		M30 × 3.5 mm	46	24	Class 10	DIN 934	—	1	90870A112	0000
		M36 × 4 mm	55	29	Class 10	DIN 934	Material Certificate	1	90870A116	00000
		M42 × 4.5 mm	65	34	Class 10	DIN 934	—	1	90870A117	00000


		Zinc-Yellow-Chromate-Plated Steel



				M3 × 0.5 mm	5.5	2.4	Class 10	DIN 934	—	25	92497A200	00000


				M4 × 0.7 mm	7	3.2	Class 10	DIN 934	—	50	92497A250	00000
				M5 × 0.8 mm	8	4	Class 10	DIN 934	—	100	92497A300	00000
				M6 × 1 mm	10	5	Class 10	DIN 934	—	100	92497A350	00000
				M8 × 1 mm	13	6.5	Class 10	DIN 934	—	10	94482A111	0000
				M8 × 1.25 mm	13	6.5	Class 10	DIN 934	—	100	92497A400	00000
				M10 × 1 mm	17	8	Class 10	DIN 934	—	5	94482A112	0000
				M10 × 1.25 mm	17	8	Class 10	DIN 934	—	5	94482A113	0000
				M10 × 1.5 mm	17	8	Class 10	DIN 934	—	50	92497A450	00000
				M12 × 1.25 mm	19	10	Class 10	DIN 934	—	5	94482A114	0000
				M12 × 1.5 mm	19	10	Class 10	DIN 934	—	5	94482A115	00000


M12 × 1.75 mm	19			10	Class 10	DIN 934	—	25	92497A500	00000
M14 × 1.5 mm	22			11	Class 10	DIN 934	—	5	94482A116	00000
M14 × 2 mm	22			11	Class 10	DIN 934	—	10	92497A550	00000
M16 × 1.5 mm	24			13	Class 10	DIN 934	—	1	94482A117	0000
M16 × 2 mm	24			13	Class 10	DIN 934	Material Certificate	10	92497A600	00000
M18 × 1.5 mm	27			15	Class 10	DIN 934	—	1	94482A118	0000
M18 × 2.5 mm	27			15	Class 10	DIN 934	—	5	92497A650	00000
M20 × 1.5 mm	30			16	Class 10	DIN 934	—	1	94482A119	0000
M20 × 2.5 mm	30			16	Class 10	DIN 934	Material Certificate	5	92497A700	00000
M22 × 1.5 mm	32			18	Class 10	DIN 934	—	1	94482A121	0000


M22 × 2.5 mm	32			18	Class 10	DIN 934	—	1	92497A750	0000
M24 × 1.5 mm	36			19	Class 10	DIN 934	—	1	94482A122	00000
M24 × 2 mm	36			19	Class 10	DIN 934	—	1	94482A123	00000
M24 × 3 mm	36			19	Class 10	DIN 934	—	1	92497A800	0000
M30 × 1.5 mm	46			24	Class 10	DIN 934	—	1	94482A125	00000
M30 × 3.5 mm	46			24	Class 10	DIN 934	Material Certificate	1	92497A850	0000
M36 × 4 mm	55			29	Class 10	DIN 934	—	1	92497A900	00000


Black-Oxide Steel



				M4 × 0.7 mm	7	3.2	Class 10	DIN 934	—	100	94166A110	0000


				M5 × 0.8 mm	8	4	Class 10	DIN 934	—	50	94166A120	0000
				M6 × 1 mm	10	5	Class 10	DIN 934	Material Certificate	50	94166A130	0000
				M8 × 1.25 mm	13	6.5	Class 10	DIN 934	Material Certificate	25	94166A140	0000
				M10 × 1.5 mm	17	8	Class 10	DIN 934	Material Certificate	10	94166A150	0000
				M12 × 1.75 mm	19	10	Class 10	DIN 934	Material Certificate	10	94166A160	00000
				M14 × 2 mm	22	11	Class 10	DIN 934	—	5	94166A170	00000
				M16 × 2 mm	24	13	Class 10	DIN 934	Material Certificate	5	94166A180	00000
				M20 × 2.5 mm	30	16	Class 10	DIN 934	Material Certificate	1	94166A190	0000
				M22 × 2.5 mm	32	18	Class 10	DIN 934	—	1	94166A210	0000
				M24 × 3 mm	36	19	Class 10	DIN 934	—	1	94166A220	0000


				M30 × 3.5 mm	46	24	Class 10	DIN 934	—	1	94166A230	00000


				Black Corrosion-Resistant-Coated Steel



		M6 × 1 mm				10	5	Class 10	DIN 934	—	10	98797A221	00000


		M8 × 1.25 mm	13			6.5	Class 10	DIN 934	—	10	98797A222	00000
		M10 × 1.5 mm	17			8	Class 10	DIN 934	—	10	98797A223	00000
		M12 × 1.75 mm	19			10	Class 10	DIN 934	—	5	98797A224	0000


		Steel



						M3 × 0.5 mm	5.5	2.4	Class 10	DIN 934	—	25	90685A037	00000


						M4 × 0.7 mm	7	3.2	Class 10	DIN 934	—	100	90685A039	0000
						M5 × 0.8 mm	8	4	Class 10	DIN 934	—	100	90685A041	0000
						M6 × 1 mm	10	5	Class 10	DIN 934	—	100	90685A043	0000
						M8 × 1 mm	13	6.5	Class 10	DIN 934	—	50	4379N111	00000
						M8 × 1.25 mm	13	6.5	Class 10	DIN 934	—	100	90685A045	00000
						M10 × 1 mm	17	8	Class 10	DIN 934	—	10	4379N112	0000
						M10 × 1.25 mm	17	8	Class 10	DIN 934	—	10	4379N113	0000
						M10 × 1.5 mm	17	8	Class 10	DIN 934	—	50	90685A046	00000
						M12 × 1 mm	19	10	Class 10	DIN 934	—	10	4379N114	00000
						M12 × 1.25 mm	19	10	Class 10	DIN 934	—	25	4379N115	00000


						M12 × 1.5 mm	19	10	Class 10	DIN 934	—	10	4379N116	0000
						M12 × 1.75 mm	19	10	Class 10	DIN 934	—	25	90685A110	0000
						M14 × 1.5 mm	22	11	Class 10	DIN 934	—	10	4379N117	0000
						M14 × 2 mm	22	11	Class 10	DIN 934	—	25	90685A115	00000
						M16 × 1.5 mm	24	13	Class 10	DIN 934	—	10	4379N118	00000
						M16 × 2 mm	24	13	Class 10	DIN 934	—	10	90685A120	0000
						M18 × 1.5 mm	27	15	Class 10	DIN 934	—	5	4379N119	0000
						M18 × 2.5 mm	27	15	Class 10	DIN 934	—	10	90685A125	00000
						M20 × 1.5 mm	30	16	Class 10	DIN 934	—	5	4379N12	0000
						M20 × 2 mm	30	16	Class 10	DIN 934	—	5	4379N121	00000


M20 × 2.5 mm						30	16	Class 10	DIN 934	—	10	90685A130	00000
M22 × 1.5 mm	32					18	Class 10	DIN 934	—	1	4379N122	0000
M22 × 2.5 mm	32					18	Class 10	DIN 934	—	5	90685A101	00000
M24 × 1.5 mm	36					19	Class 10	DIN 934	—	1	4379N123	0000
M24 × 2 mm	36					19	Class 10	DIN 934	—	1	4379N124	0000
M24 × 3 mm	36					19	Class 10	DIN 934	—	5	90685A060	00000
M27 × 2 mm	41					22	Class 10	DIN 934	—	1	4379N125	0000
M27 × 3 mm	41					22	Class 10	DIN 934	—	5	90685A102	00000
M30 × 1.5 mm	46					24	Class 10	DIN 934	—	1	4379N126	0000
M30 × 2 mm	49					24	Class 10	DIN 934	—	1	4379N127	0000


M30 × 3.5 mm	46					24	Class 10	DIN 934	—	1	90685A070	0000
M36 × 2 mm	55					29	Class 10	DIN 934	—	1	4379N128	00000
M36 × 4 mm	55					29	Class 10	DIN 934	—	1	90685A080	0000
M42 × 4.5 mm	65					34	Class 10	DIN 934	—	1	90685A103	00000
M48 × 5 mm	75					38	Class 10	DIN 934	—	1	90685A104	00000


Zinc-Flake-Coated Steel



						M6 × 1 mm	10	5	Class 10	DIN 934	—	100	93827A611	00000


				M8 × 1.25 mm	13	6.5	Class 10	DIN 934	—	50	93827A612	00000
				M10 × 1.5 mm	17	8	Class 10	DIN 934	—	25	93827A713	00000
				M12 × 1.75 mm	19	10	Class 10	DIN 934	—	25	93827A714	00000


				Blue Dyed Steel



		M6 × 1 mm				10	5	Class 10	DIN 934	—	50	99899A211	0000


		M8 × 1.25 mm	13			6.5	Class 10	DIN 934	—	50	99899A216	00000
		M10 × 1.5 mm	17			8	Class 10	DIN 934	—	25	99899A222	00000
		M12 × 1.75 mm	19			10	Class 10	DIN 934	—	10	99899A227	0000
		M14 × 2 mm	22			11	Class 10	DIN 934	—	10	99899A231	00000
		M16 × 2 mm	24			13	Class 10	DIN 934	—	10	99899A236	00000
		M18 × 2.5 mm	27			15	Class 10	DIN 934	—	1	99899A201	0000
		M20 × 2.5 mm	30			16	Class 10	DIN 934	—	1	99899A243	0000
		M24 × 3 mm	36			19	Class 10	DIN 934	—	1	99899A247	0000
		M30 × 3.5 mm	46			24	Class 10	DIN 934	—	1	99899A251	0000
		M36 × 4 mm	55			29	Class 10	DIN 934	—	1	99899A255	00000