Hex Nuts for Low-Strength Anchor Bolts

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743 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

494 products

Thin

Fit in spaces with low clearance

2 products

Hex Nut Profile

Heavy

Wider and taller than standard nuts to handle heavier loads

247 products

Material

Steel

Your go-to for fastening most machinery and equipment

514 products

Hex Nuts

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

Medium-Strength Steel

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These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

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

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.

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



		1/4"-20	7/16"	7/32"	SAE Grade 5	ASME B18.2.2	—	100	95462A029	00000


		1/4"-28	7/16"	7/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	100	95462A505	0000
		5/16"-18	1/2"	17/64"	SAE Grade 5	ASME B18.2.2	—	100	95462A030	0000
		5/16"-24	1/2"	17/64"	SAE Grade 5	ASME B18.2.2	—	100	95462A510	00000
		3/8"-16	9/16"	21/64"	SAE Grade 5	ASME B18.2.2	—	100	95462A031	0000
		3/8"-24	9/16"	21/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	100	95462A515	00000
		7/16"-14	11/16"	3/8"	SAE Grade 5	ASME B18.2.2	—	100	95462A032	00000
		7/16"-20	11/16"	3/8"	SAE Grade 5	ASME B18.2.2	Material Certificate	100	95462A520	00000
		1/2"-13	3/4"	7/16"	SAE Grade 5	ASME B18.2.2	—	100	95462A033	00000
		1/2"-20	3/4"	7/16"	SAE Grade 5	ASME B18.2.2	Material Certificate	100	95462A525	00000
		9/16"-12	7/8"	31/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	50	95462A528	00000


		9/16"-18	7/8"	31/64"	SAE Grade 5	ASME B18.2.2	—	25	95462A530	00000
		5/8"-11	15/16"	35/64"	SAE Grade 5	ASME B18.2.2	—	25	95462A533	0000
		5/8"-18	15/16"	35/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	25	95462A535	00000
		3/4"-10	1 1/8"	41/64"	SAE Grade 5	ASME B18.2.2	—	25	95462A538	00000
		3/4"-16	1 1/8"	41/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	25	95462A540	00000
		7/8"-9	1 5/16"	3/4"	SAE Grade 5	ASME B18.2.2	—	10	95462A542	00000
		7/8"-14	1 5/16"	3/4"	SAE Grade 5	ASME B18.2.2	—	10	95462A545	00000
		1"-8	1 1/2"	55/64"	SAE Grade 5	ASME B18.2.2	—	10	95462A548	00000
		1"-12	1 1/2"	55/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95462A550	0000
		1"-14	1 1/2"	55/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	10	95462A555	00000


		1 1/8"-7	1 11/16"	31/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	10	95462A557	00000
		1 1/8"-12	1 11/16"	31/32"	SAE Grade 5	ASME B18.2.2	—	10	95462A558	00000
		1 1/4"-7	1 7/8"	1 1/16"	SAE Grade 5	ASME B18.2.2	—	5	95462A559	00000
		1 1/4"-12	1 7/8"	1 1/16"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	95462A560	00000
		1 3/8"-6	2 1/16"	1 11/64"	SAE Grade 5	ASME B18.2.2	—	1	95462A562	0000
		1 3/8"-12	2 1/16"	1 11/64"	SAE Grade 5	ASME B18.2.2	—	1	95462A563	0000
		1 1/2"-6	2 1/4"	1 9/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95462A564	0000
		1 1/2"-12	2 1/4"	1 9/32"	SAE Grade 5	ASME B18.2.2	—	1	95462A565	0000
		2"-4 1/2	3"	1 23/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95462A211	00000
		2"-12	3"	1 23/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95462A213	00000


		Black-Oxide Steel



				1/4"-20	7/16"	7/32"	SAE Grade 5	ASME B18.2.2	—	50	95479A111	0000


				1/4"-28	7/16"	7/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	50	95479A113	00000
				5/16"-18	1/2"	17/64"	SAE Grade 5	ASME B18.2.2	—	50	95479A115	0000
				5/16"-24	1/2"	17/64"	SAE Grade 5	ASME B18.2.2	—	50	95479A117	00000
				3/8"-16	9/16"	21/64"	SAE Grade 5	ASME B18.2.2	—	50	95479A118	0000
				3/8"-24	9/16"	21/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	25	95479A119	00000
				7/16"-14	11/16"	3/8"	SAE Grade 5	ASME B18.2.2	—	25	95479A211	0000
				7/16"-20	11/16"	3/8"	SAE Grade 5	ASME B18.2.2	—	25	95479A215	0000
				1/2"-13	3/4"	7/16"	SAE Grade 5	ASME B18.2.2	—	25	95479A121	0000
				1/2"-20	3/4"	7/16"	SAE Grade 5	ASME B18.2.2	Material Certificate	10	95479A122	0000
				9/16"-12	7/8"	31/64"	SAE Grade 5	ASME B18.2.2	—	10	95479A123	0000


				9/16"-18	7/8"	1/2"	SAE Grade 5	ASME B18.2.2	—	25	95479A108	0000
				5/8"-11	15/16"	35/64"	SAE Grade 5	ASME B18.2.2	—	10	95479A125	0000
				5/8"-18	15/16"	35/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	10	95479A127	0000
3/4"-10				1 1/8"	41/64"	SAE Grade 5	ASME B18.2.2	—	10	95479A128	0000
3/4"-16	1 1/8"			41/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	10	95479A129	00000
7/8"-9	1 5/16"			3/4"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	95479A131	00000
7/8"-14	1 5/16"			3/4"	SAE Grade 5	ASME B18.2.2	—	5	95479A132	0000
1"-8	1 1/2"			55/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	95479A135	00000
1"-14	1 1/2"			7/8"	SAE Grade 5	ASME B18.2.2	Material Certificate	10	95479A177	00000
1 1/8"-7	1 11/16"			31/32"	SAE Grade 5	ASME B18.2.2	—	1	95479A140	0000


1 1/8"-12	1 11/16"			1"	SAE Grade 5	ASME B18.2.2	—	10	95479A184	00000
1 1/4"-7	1 7/8"			1 1/16"	SAE Grade 5	ASME B18.2.2	—	1	95479A145	0000
1 1/4"-12	1 7/8"			1 1/16"	SAE Grade 5	ASME B18.2.2	—	5	95479A205	00000
1 3/8"-6	2 1/16"			1 3/16"	SAE Grade 5	ASME B18.2.2	—	1	95479A222	0000
1 3/8"-12	2 1/16"			1 3/16"	SAE Grade 5	ASME B18.2.2	—	1	95479A335	00000
1 1/2"-6	2 1/4"			1 5/16"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95479A449	00000
1 1/2"-12	2 1/4"			1 5/16"	SAE Grade 5	ASME B18.2.2	—	1	95479A909	00000


Black Corrosion-Resistant-Coated Steel



				1/4"-20	7/16"	7/32"	SAE Grade 5	ASME B18.2.2	—	10	98797A029	0000


				5/16"-18	1/2"	17/64"	SAE Grade 5	ASME B18.2.2	—	10	98797A030	00000
				3/8"-16	9/16"	21/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	98797A031	0000
				7/16"-14	11/16"	3/8"	SAE Grade 5	ASME B18.2.2	—	5	98797A330	0000
				1/2"-13	3/4"	7/16"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	98797A523	0000
				9/16"-12	7/8"	31/64"	SAE Grade 5	ASME B18.2.2	—	5	98797A395	00000
				5/8"-11	15/16"	35/64"	SAE Grade 5	ASME B18.2.2	—	1	98797A535	0000
				3/4"-10	1 1/8"	41/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	98797A855	0000
				M6 × 1 mm	10 mm	5 mm	Class 8	DIN 934	—	10	98797A321	0000
				M8 × 1.25 mm	13 mm	6.5 mm	Class 8	DIN 934	—	10	98797A322	00000
				M10 × 1.5 mm	17 mm	8 mm	Class 8	DIN 934	—	10	98797A323	00000


				M12 × 1.75 mm	19 mm	10 mm	Class 8	DIN 934	—	5	98797A324	0000


				Steel



		1/4"-20				7/16"	7/32"	SAE Grade 5	ASME B18.2.2	—	100	95505A601	0000


		1/4"-28	7/16"			7/32"	SAE Grade 5	ASME B18.2.2	—	100	95505A611	0000
		5/16"-18	1/2"			17/64"	SAE Grade 5	ASME B18.2.2	—	100	95505A602	0000
		5/16"-24	1/2"			17/64"	SAE Grade 5	ASME B18.2.2	—	100	95505A612	0000
		3/8"-16	9/16"			21/64"	SAE Grade 5	ASME B18.2.2	—	100	95505A603	0000
		3/8"-24	9/16"			21/64"	SAE Grade 5	ASME B18.2.2	—	100	95505A613	0000
		7/16"-14	11/16"			3/8"	SAE Grade 5	ASME B18.2.2	—	100	95505A604	00000
		7/16"-20	11/16"			3/8"	SAE Grade 5	ASME B18.2.2	—	100	95505A614	00000
		1/2"-13	3/4"			7/16"	SAE Grade 5	ASME B18.2.2	—	50	95505A605	0000
		1/2"-20	3/4"			7/16"	SAE Grade 5	ASME B18.2.2	—	50	95505A615	00000
		9/16"-12	7/8"			31/64"	SAE Grade 5	ASME B18.2.2	—	25	95505A606	0000


		9/16"-18	7/8"			31/64"	SAE Grade 5	ASME B18.2.2	—	25	95505A616	0000
		5/8"-11	15/16"			35/64"	SAE Grade 5	ASME B18.2.2	—	25	95505A607	0000
		5/8"-18	15/16"			35/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	25	95505A617	00000
		3/4"-10	1 1/8"			41/64"	SAE Grade 5	ASME B18.2.2	—	25	95505A608	0000
		3/4"-16	1 1/8"			41/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	25	95505A618	00000
		7/8"-9	1 5/16"			3/4"	SAE Grade 5	ASME B18.2.2	—	10	95505A609	0000
		7/8"-14	1 5/16"			3/4"	SAE Grade 5	ASME B18.2.2	—	10	95505A619	00000
		1"-8	1 1/2"			55/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	95505A610	0000
		1"-12	1 1/2"			55/64"	SAE Grade 5	ASME B18.2.2	—	1	95505A620	0000
		1"-14	1 1/2"			55/64"	SAE Grade 5	ASME B18.2.2	Material Certificate	5	95505A621	0000


		1 1/8"-7	1 11/16"			31/32"	SAE Grade 5	ASME B18.2.2	—	5	95505A622	00000
		1 1/8"-12	1 11/16"			31/32"	SAE Grade 5	ASME B18.2.2	—	5	95505A626	00000
		1 1/4"-7	1 7/8"			1 1/16"	SAE Grade 5	ASME B18.2.2	—	5	95505A623	0000
		1 1/4"-12	1 7/8"			1 1/16"	SAE Grade 5	ASME B18.2.2	—	5	95505A627	00000
		1 3/8"-6	2 1/16"			1 11/64"	SAE Grade 5	ASME B18.2.2	—	1	95505A624	0000
		1 3/8"-12	2 1/16"			1 11/64"	SAE Grade 5	ASME B18.2.2	—	1	95505A628	0000
		1 1/2"-6	2 1/4"			1 9/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95505A625	0000
		1 1/2"-12	2 1/4"			1 9/32"	SAE Grade 5	ASME B18.2.2	Material Certificate	1	95505A629	0000
		1 3/4"-5	2 5/8"			1 1/2"	SAE Grade 5	ASME B18.2.2	—	1	95505A642	00000
		1 3/4"-12	2 5/8"			1 1/2"	SAE Grade 5	ASME B18.2.2	—	1	95505A630	00000


2"-4 1/2		3"	1 23/32"			SAE Grade 5	ASME B18.2.2	Material Certificate	1	95505A661	00000
2"-12	3"	1 23/32"	SAE Grade 5			ASME B18.2.2	—	1	95505A631	00000


Zinc-Flake-Coated Steel



		M6 × 1 mm	10 mm			5 mm	Class 8	DIN 934	—	100	93827A811	0000


		M8 × 1.25 mm	13 mm			6.5 mm	Class 8	DIN 934	—	50	93827A812	0000
		M10 × 1.5 mm	17 mm			8 mm	Class 8	DIN 934	—	25	93827A813	00000
		M12 × 1.75 mm	19 mm			10 mm	Class 8	DIN 934	—	25	93827A814	00000

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-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.

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

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



		1/4"-20	7/16"	7/32"	SAE Grade 8	—	—	100	94895A029	00000


		1/4"-20	7/16"	7/32"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	100	91819A110	0000
		1/4"-28	7/16"	7/32"	SAE Grade 8	—	Material Certificate	100	94895A805	0000
		5/16"-18	1/2"	17/64"	SAE Grade 8	—	—	100	94895A030	0000
		5/16"-18	1/2"	17/64"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	100	91819A120	00000
		5/16"-24	1/2"	17/64"	SAE Grade 8	—	Material Certificate	100	94895A810	0000
		3/8"-16	9/16"	21/64"	SAE Grade 8	—	—	100	94895A031	00000
		3/8"-16	9/16"	21/64"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	100	91819A130	00000
		3/8"-24	9/16"	21/64"	SAE Grade 8	—	Material Certificate	100	94895A815	00000
		7/16"-14	11/16"	3/8"	SAE Grade 8	—	—	50	94895A817	00000
		7/16"-20	11/16"	3/8"	SAE Grade 8	—	—	50	94895A820	00000


		1/2"-13	3/4"	7/16"	SAE Grade 8	—	—	50	94895A823	00000
		1/2"-13	3/4"	7/16"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	50	91819A140	00000
		1/2"-20	3/4"	7/16"	SAE Grade 8	—	—	50	94895A825	00000
		9/16"-12	7/8"	31/64"	SAE Grade 8	—	—	25	94895A827	00000
		9/16"-18	7/8"	31/64"	SAE Grade 8	—	—	25	94895A830	00000
		5/8"-11	15/16"	35/64"	SAE Grade 8	—	—	25	94895A035	00000
		5/8"-11	15/16"	35/64"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	25	91819A150	00000
		5/8"-18	15/16"	35/64"	SAE Grade 8	—	Material Certificate	25	94895A835	00000
		3/4"-10	1 1/8"	41/64"	SAE Grade 8	—	—	20	94895A036	00000
		3/4"-10	1 1/8"	41/64"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	10	91819A160	00000


		3/4"-16	1 1/8"	41/64"	SAE Grade 8	—	Material Certificate	10	94895A840	00000
		7/8"-9	1 5/16"	3/4"	SAE Grade 8	—	—	10	94895A842	00000
		7/8"-14	1 5/16"	3/4"	SAE Grade 8	—	Material Certificate	10	94895A845	00000
		1"-8	1 1/2"	55/64"	SAE Grade 8	—	Material Certificate	10	94895A038	00000
		1"-8	1 1/2"	55/64"	SAE Grade 8	ASME B1.1, ASME B18.2.2, SAE J995	Material Certificate	5	91819A170	00000
		1"-12	1 1/2"	55/64"	SAE Grade 8	—	Material Certificate	1	94895A850	0000
		1"-14	1 1/2"	55/64"	SAE Grade 8	—	—	10	94895A855	00000
		1 1/8"-7	1 11/16"	31/32"	SAE Grade 8	—	—	5	94895A857	00000
		1 1/8"-12	1 11/16"	31/32"	SAE Grade 8	—	Material Certificate	5	94895A858	00000
		1 1/4"-7	1 7/8"	1 1/16"	SAE Grade 8	—	—	5	94895A859	00000


		1 1/4"-12	1 7/8"	1 1/16"	SAE Grade 8	—	Material Certificate	1	94895A860	0000
		1 3/8"-6	2 1/16"	1 11/64"	SAE Grade 8	—	—	1	94895A042	00000
		1 3/8"-12	2 1/16"	1 11/64"	SAE Grade 8	—	—	1	94895A863	00000
		1 1/2"-6	2 1/4"	1 9/32"	SAE Grade 8	—	Material Certificate	1	94895A041	00000
		1 1/2"-12	2 1/4"	1 9/32"	SAE Grade 8	—	Material Certificate	1	94895A865	00000
		1 3/4"-5	2 5/8"	1 1/2"	SAE Grade 8	—	—	1	94895A044	00000
		1 3/4"-12	2 5/8"	1 1/2"	SAE Grade 8	—	Material Certificate	1	94895A868	00000
		2"-4 1/2	3"	1 23/32"	SAE Grade 8	—	—	1	94895A045	00000
		2"-12	3"	1 23/32"	SAE Grade 8	—	—	1	94895A870	00000


		Black-Oxide Steel



				1/4"-20	7/16"	7/32"	SAE Grade 8	—	Material Certificate	100	94895A110	0000


				1/4"-28	7/16"	7/32"	SAE Grade 8	—	—	100	94895A112	0000
				5/16"-18	1/2"	17/64"	SAE Grade 8	—	Material Certificate	100	94895A115	0000
				5/16"-24	1/2"	17/64"	SAE Grade 8	—	Material Certificate	100	94895A116	00000
				3/8"-16	9/16"	21/64"	SAE Grade 8	—	Material Certificate	100	94895A119	00000
3/8"-24				9/16"	21/64"	SAE Grade 8	—	—	100	94895A145	00000
7/16"-14	11/16"			3/8"	SAE Grade 8	—	—	50	94895A156	00000
7/16"-20	11/16"			3/8"	SAE Grade 8	—	—	50	94895A190	00000
1/2"-13	3/4"			7/16"	SAE Grade 8	—	Material Certificate	50	94895A200	00000
1/2"-20	3/4"			7/16"	SAE Grade 8	—	—	50	94895A291	00000
9/16"-12	7/8"			31/64"	SAE Grade 8	—	—	25	94895A366	00000


9/16"-18	7/8"			31/64"	SAE Grade 8	—	—	25	94895A374	00000
5/8"-11	15/16"			35/64"	SAE Grade 8	—	Material Certificate	25	94895A403	00000
5/8"-18	15/16"			35/64"	SAE Grade 8	—	Material Certificate	25	94895A415	00000
3/4"-10	1 1/8"			41/64"	SAE Grade 8	—	Material Certificate	20	94895A426	00000
3/4"-16	1 1/8"			41/64"	SAE Grade 8	—	—	20	94895A491	00000
7/8"-9	1 5/16"			3/4"	SAE Grade 8	—	—	10	94895A535	00000
7/8"-14	1 5/16"			3/4"	SAE Grade 8	—	—	10	94895A541	00000
1"-8	1 1/2"			55/64"	SAE Grade 8	—	Material Certificate	10	94895A549	00000
1"-14	1 1/2"			55/64"	SAE Grade 8	—	Material Certificate	10	94895A550	00000
1 1/8"-7	1 11/16"			31/32"	SAE Grade 8	—	—	5	94895A565	00000


1 1/8"-12	1 11/16"			31/32"	SAE Grade 8	—	—	5	94895A584	00000
1 1/4"-7	1 7/8"			1 1/16"	SAE Grade 8	—	—	5	94895A586	00000
1 1/4"-12	1 7/8"			1 1/16"	SAE Grade 8	—	Material Certificate	5	94895A591	00000
1 3/8"-6	2 1/16"			1 11/64"	SAE Grade 8	—	Material Certificate	1	94895A628	00000
1 3/8"-12	2 1/16"			1 11/64"	SAE Grade 8	—	—	1	94895A706	00000
1 1/2"-6	2 1/4"			1 9/32"	SAE Grade 8	—	Material Certificate	1	94895A713	00000
1 1/2"-12	2 1/4"			1 9/32"	SAE Grade 8	—	Material Certificate	1	94895A730	00000
1 3/4"-5	2 5/8"			1 1/2"	SAE Grade 8	—	Material Certificate	1	94895A764	00000
1 3/4"-12	2 5/8"			1 1/2"	SAE Grade 8	—	—	1	94895A792	00000
2"-4 1/2	3"			1 23/32"	SAE Grade 8	—	Material Certificate	1	94895A802	00000


2"-12	3"			1 23/32"	SAE Grade 8	—	—	1	94895A982	00000


Black Corrosion-Resistant-Coated Steel



				1/4"-20	7/16"	7/32"	SAE Grade 8	ASME B18.2.2	—	10	98797A121	00000


				5/16"-18	1/2"	17/64"	SAE Grade 8	ASME B18.2.2	—	10	98797A122	00000
				3/8"-16	9/16"	21/64"	SAE Grade 8	ASME B18.2.2	—	5	98797A123	0000
				1/2"-13	3/4"	7/16"	SAE Grade 8	ASME B18.2.2	—	5	98797A124	00000
				M6 × 1 mm	10 mm	5 mm	Class 10	DIN 934	—	10	98797A221	00000
				M8 × 1.25 mm	13 mm	6.5 mm	Class 10	DIN 934	—	10	98797A222	00000
				M10 × 1.5 mm	17 mm	8 mm	Class 10	DIN 934	—	10	98797A223	00000
				M12 × 1.75 mm	19 mm	10 mm	Class 10	DIN 934	—	5	98797A224	0000


				Steel



		1/4"-20				7/16"	7/32"	SAE Grade 8	—	—	100	90499A029	0000


		1/4"-28	7/16"			7/32"	SAE Grade 8	—	—	100	90499A805	0000
		5/16"-18	1/2"			17/64"	SAE Grade 8	—	—	100	90499A030	0000
		5/16"-24	1/2"			17/64"	SAE Grade 8	—	—	100	90499A810	0000
		3/8"-16	9/16"			21/64"	SAE Grade 8	—	—	100	90499A031	00000
		3/8"-24	9/16"			21/64"	SAE Grade 8	—	—	100	90499A815	00000
		7/16"-14	11/16"			3/8"	SAE Grade 8	—	—	100	90499A032	00000
		7/16"-20	11/16"			3/8"	SAE Grade 8	—	—	100	90499A820	00000
		1/2"-13	3/4"			7/16"	SAE Grade 8	—	—	50	90499A033	00000
		1/2"-20	3/4"			7/16"	SAE Grade 8	—	Material Certificate	50	90499A825	00000
		9/16"-12	7/8"			31/64"	SAE Grade 8	—	—	50	90499A827	00000


		9/16"-18	7/8"			31/64"	SAE Grade 8	—	—	50	90499A830	00000
		5/8"-11	15/16"			35/64"	SAE Grade 8	—	—	50	90499A832	00000
		5/8"-18	15/16"			35/64"	SAE Grade 8	—	—	25	90499A835	00000
		3/4"-10	1 1/8"			41/64"	SAE Grade 8	—	—	25	90499A837	00000
		3/4"-16	1 1/8"			41/64"	SAE Grade 8	—	Material Certificate	10	90499A840	0000
		7/8"-9	1 5/16"			3/4"	SAE Grade 8	—	—	10	90499A842	00000
		7/8"-14	1 5/16"			3/4"	SAE Grade 8	—	—	10	90499A845	00000
		1"-8	1 1/2"			55/64"	SAE Grade 8	—	Material Certificate	10	90499A847	00000
		1"-12	1 1/2"			55/64"	SAE Grade 8	—	—	1	90499A850	0000
		1"-14	1 1/2"			55/64"	SAE Grade 8	—	—	10	90499A855	00000


		1 1/8"-7	1 11/16"			31/32"	SAE Grade 8	—	—	5	90499A857	00000
		1 1/8"-12	1 11/16"			31/32"	SAE Grade 8	—	—	5	90499A858	00000
		1 1/4"-7	1 7/8"			1 1/16"	SAE Grade 8	—	—	5	90499A859	00000
		1 1/4"-12	1 7/8"			1 1/16"	SAE Grade 8	—	—	5	90499A860	00000
		1 3/8"-6	2 1/16"			1 11/64"	SAE Grade 8	—	—	1	90499A042	0000
		1 3/8"-12	2 1/16"			1 11/64"	SAE Grade 8	—	—	1	90499A863	0000
		1 1/2"-6	2 1/4"			1 9/32"	SAE Grade 8	—	—	1	90499A041	0000
		1 1/2"-12	2 1/4"			1 9/32"	SAE Grade 8	—	Material Certificate	1	90499A865	0000
		1 3/4"-5	2 5/8"			1 1/2"	SAE Grade 8	—	—	1	90499A044	00000
		1 3/4"-12	2 5/8"			1 1/2"	SAE Grade 8	—	—	1	90499A868	00000


		2"-4 1/2	3"			1 23/32"	SAE Grade 8	—	—	1	90499A045	00000
		2"-12	3"			1 23/32"	SAE Grade 8	—	—	1	90499A870	00000


		Zinc-Flake-Coated Steel



	1/4"-20		7/16"			7/32"	SAE Grade 8	—	—	100	93827A211	00000


	1/4"-28		7/16"			7/32"	SAE Grade 8	—	—	100	93827A216	0000
	5/16"-18		1/2"			17/64"	SAE Grade 8	—	—	100	93827A219	00000
	5/16"-24		1/2"			17/64"	SAE Grade 8	—	—	100	93827A222	0000
	3/8"-16		9/16"			21/64"	SAE Grade 8	—	—	100	93827A225	00000
	3/8"-24		9/16"			21/64"	SAE Grade 8	—	—	50	93827A228	00000
	7/16"-14		11/16"			3/8"	SAE Grade 8	—	—	50	93827A236	00000
	7/16"-20		11/16"			3/8"	SAE Grade 8	—	—	25	93827A241	0000
	1/2"-13		3/4"			7/16"	SAE Grade 8	—	—	25	93827A245	00000
	1/2"-20		3/4"			7/16"	SAE Grade 8	—	—	25	93827A249	00000
	9/16"-12		7/8"			31/64"	SAE Grade 8	—	—	25	93827A250	00000


	9/16"-18		7/8"	31/64"		SAE Grade 8	—	—	10	93827A251	0000
	5/8"-11		15/16"	35/64"	SAE Grade 8	—	—	10	93827A253	00000
	5/8"-18		15/16"	35/64"	SAE Grade 8	—	—	10	93827A255	0000
	3/4"-10		1 1/8"	41/64"	SAE Grade 8	—	—	10	93827A259	00000
	3/4"-16		1 1/8"	41/64"	SAE Grade 8	—	—	10	93827A267	00000
	7/8"-9		1 5/16"	3/4"	SAE Grade 8	—	—	10	93827A271	00000
	7/8"-14		1 5/16"	3/4"	SAE Grade 8	—	—	10	93827A273	00000
	1"-8		1 1/2"	55/64"	SAE Grade 8	—	Material Certificate	5	93827A277	00000
	1"-14		1 1/2"	55/64"	SAE Grade 8	—	—	5	93827A279	00000
	1 1/8"-7		1 11/16"	31/32"	SAE Grade 8	—	—	1	93827A282	0000


	1 1/8"-12		1 11/16"	31/32"	SAE Grade 8	—	—	1	93827A284	0000
	1 1/4"-7		1 7/8"	1 1/16"	SAE Grade 8	—	—	1	93827A287	0000
	1 1/4"-12		1 7/8"	1 1/16"	SAE Grade 8	—	—	1	93827A289	0000
	1 3/8"-6		2 1/16"	1 11/64"	SAE Grade 8	—	—	1	93827A292	0000
	1 3/8"-12		2 1/16"	1 11/64"	SAE Grade 8	—	—	1	93827A295	0000
	1 1/2"-6		2 1/4"	1 9/32"	SAE Grade 8	—	—	1	93827A297	0000
	1 1/2"-12		2 1/4"	1 9/32"	SAE Grade 8	—	—	1	93827A299	0000
	2"-4 1/2		3"	1 23/32"	SAE Grade 8	—	—	1	93827A301	00000
	2"-12		3"	1 23/32"	SAE Grade 8	—	—	1	93827A303	00000
	M6 × 1 mm		10 mm	5 mm	Class 10	DIN 934	—	100	93827A611	00000


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

Low-Strength Steel

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.

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

Hot-Dipped Galvanized Steel—Combines the strength of steel with the rust resistance of stainless steel. These nuts are an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. Use with other hot-dipped galvanized fasteners.

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

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



		1/4"-20	7/16"	7/32"	SAE Grade 2	ASME B18.2.2	—	100	90473A029	00000


		1/4"-28	7/16"	7/32"	SAE Grade 2	ASME B18.2.2	—	100	90473A205	0000
		5/16"-18	1/2"	17/64"	SAE Grade 2	ASME B18.2.2	Material Certificate	100	90473A030	0000
		5/16"-24	1/2"	17/64"	SAE Grade 2	ASME B18.2.2	—	100	90473A210	0000
		3/8"-16	9/16"	21/64"	SAE Grade 2	ASME B18.2.2	—	100	90473A031	0000
		3/8"-24	9/16"	21/64"	SAE Grade 2	ASME B18.2.2	—	100	90473A215	00000
		7/16"-14	11/16"	3/8"	SAE Grade 2	ASME B18.2.2	—	100	90473A217	00000
		7/16"-20	11/16"	3/8"	SAE Grade 2	ASME B18.2.2	—	100	90473A220	00000
		1/2"-13	3/4"	7/16"	SAE Grade 2	ASME B18.2.2	—	100	90473A223	00000
		1/2"-20	3/4"	7/16"	SAE Grade 2	ASME B18.2.2	—	50	90473A225	00000
		9/16"-12	7/8"	31/64"	SAE Grade 2	ASME B18.2.2	—	50	90473A227	00000


		9/16"-18	7/8"	31/64"	SAE Grade 2	ASME B18.2.2	—	50	90473A230	00000
		5/8"-11	15/16"	35/64"	SAE Grade 2	ASME B18.2.2	—	50	90473A233	00000
		5/8"-18	15/16"	35/64"	SAE Grade 2	ASME B18.2.2	—	25	90473A235	00000
		3/4"-10	1 1/8"	41/64"	SAE Grade 2	ASME B18.2.2	—	25	90473A237	00000
		3/4"-16	1 1/8"	41/64"	SAE Grade 2	ASME B18.2.2	—	25	90473A240	00000
		7/8"-9	1 5/16"	3/4"	SAE Grade 2	ASME B18.2.2	Material Certificate	10	90473A242	00000
		7/8"-14	1 5/16"	3/4"	SAE Grade 2	ASME B18.2.2	—	10	90473A245	00000
		1"-8	1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	—	5	90473A038	00000
		1"-12	1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	—	5	90473A250	00000
		1"-14	1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	—	10	90473A255	00000


		1 1/8"-7	1 11/16"	31/32"	SAE Grade 2	ASME B18.2.2	—	10	90473A039	00000
		1 1/8"-12	1 11/16"	31/32"	SAE Grade 2	ASME B18.2.2	—	5	90473A258	0000
		1 1/4"-7	1 7/8"	1 1/16"	SAE Grade 2	ASME B18.2.2	—	5	90473A040	0000
		1 1/4"-12	1 7/8"	1 1/16"	SAE Grade 2	ASME B18.2.2	—	5	90473A260	00000
		1 3/8"-6	2 1/16"	1 11/64"	SAE Grade 2	ASME B18.2.2	—	1	90473A042	0000
		1 3/8"-12	2 1/16"	1 11/64"	SAE Grade 2	ASME B18.2.2	—	1	90473A263	0000
		1 1/2"-6	2 1/4"	1 9/32"	SAE Grade 2	ASME B18.2.2	—	1	90473A041	0000
		1 1/2"-12	2 1/4"	1 9/32"	SAE Grade 2	ASME B18.2.2	—	1	90473A265	0000


		Hot-Dipped Galvanized Steel



				1/4"-20	7/16"	7/32"	SAE Grade 2	ASME B18.2.2	—	100	90371A029	0000


				5/16"-18	1/2"	17/64"	SAE Grade 2	ASME B18.2.2	—	100	90371A019	0000
				3/8"-16	9/16"	21/64"	SAE Grade 2	ASME B18.2.2	—	100	90371A031	00000
				7/16"-14	11/16"	3/8"	SAE Grade 2	ASME B18.2.2	—	50	90371A032	0000
				1/2"-13	3/4"	7/16"	SAE Grade 2	ASME B18.2.2	Material Certificate	50	90371A045	00000
				5/8"-11	15/16"	35/64"	SAE Grade 2	ASME B18.2.2	Material Certificate	25	90371A050	00000
				3/4"-10	1 1/8"	41/64"	SAE Grade 2	ASME B18.2.2	Material Certificate	10	90371A055	0000
				7/8"-9	1 5/16"	3/4"	SAE Grade 2	ASME B18.2.2	Material Certificate	10	90371A060	00000
				1"-8	1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	Material Certificate	5	90371A065	00000
				1 1/8"-7	1 11/16"	31/32"	SAE Grade 2	ASME B18.2.2	—	1	90371A067	0000
				1 1/4"-7	1 7/8"	1 1/16"	SAE Grade 2	ASME B18.2.2	—	1	90371A070	0000


				1 1/2"-6	2 1/4"	1 9/32"	SAE Grade 2	ASME B18.2.2	—	1	90371A073	0000


				Steel



	1/4"-20				7/16"	7/32"	SAE Grade 2	ASME B18.2.2	—	100	90490A029	0000


	1/4"-28				7/16"	7/32"	SAE Grade 2	ASME B18.2.2	—	100	90490A205	0000
	5/16"-18				1/2"	17/64"	SAE Grade 2	ASME B18.2.2	—	100	90490A030	0000
	5/16"-24				1/2"	17/64"	SAE Grade 2	ASME B18.2.2	—	100	90490A210	0000
	3/8"-16				9/16"	21/64"	SAE Grade 2	ASME B18.2.2	Material Certificate	100	90490A031	0000
	3/8"-24				9/16"	21/64"	SAE Grade 2	ASME B18.2.2	—	100	90490A215	00000
	7/16"-14				11/16"	3/8"	SAE Grade 2	ASME B18.2.2	—	100	90490A032	00000
	7/16"-20				11/16"	3/8"	SAE Grade 2	ASME B18.2.2	—	100	90490A220	00000
	1/2"-13				3/4"	7/16"	SAE Grade 2	ASME B18.2.2	—	100	90490A033	00000
	1/2"-20				3/4"	7/16"	SAE Grade 2	ASME B18.2.2	—	100	90490A225	00000
	9/16"-12				7/8"	31/64"	SAE Grade 2	ASME B18.2.2	—	50	90490A034	00000


	9/16"-18				7/8"	31/64"	SAE Grade 2	ASME B18.2.2	—	50	90490A230	00000
	5/8"-11				15/16"	35/64"	SAE Grade 2	ASME B18.2.2	—	50	90490A035	00000
	5/8"-18				15/16"	35/64"	SAE Grade 2	ASME B18.2.2	—	50	90490A235	00000
	3/4"-10				1 1/8"	41/64"	SAE Grade 2	ASME B18.2.2	—	25	90490A436	00000
	3/4"-16				1 1/8"	41/64"	SAE Grade 2	ASME B18.2.2	—	25	90490A240	00000
	7/8"-9				1 5/16"	3/4"	SAE Grade 2	ASME B18.2.2	—	25	90490A037	00000
	7/8"-14				1 5/16"	3/4"	SAE Grade 2	ASME B18.2.2	—	10	90490A245	00000
	1"-8				1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	Material Certificate	10	90490A438	00000
	1"-12				1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	—	10	90490A250	00000
	1"-14				1 1/2"	55/64"	SAE Grade 2	ASME B18.2.2	—	10	90490A255	00000


	1 1/8"-7				1 11/16"	31/32"	SAE Grade 2	ASME B18.2.2	—	10	90490A439	00000
	1 1/8"-12				1 11/16"	31/32"	SAE Grade 2	ASME B18.2.2	—	10	90490A258	00000
	1 1/4"-7				1 7/8"	1 1/16"	SAE Grade 2	ASME B18.2.2	Material Certificate	5	90490A440	00000
	1 1/4"-12				1 7/8"	1 1/16"	SAE Grade 2	ASME B18.2.2	—	5	90490A260	00000
	1 3/8"-6				2 1/16"	1 11/64"	SAE Grade 2	ASME B18.2.2	—	1	90490A442	0000
	1 3/8"-12				2 1/16"	1 11/64"	SAE Grade 2	ASME B18.2.2	—	1	90490A263	0000
	1 1/2"-6				2 1/4"	1 9/32"	SAE Grade 2	ASME B18.2.2	—	1	90490A441	0000
	1 1/2"-12				2 1/4"	1 9/32"	SAE Grade 2	ASME B18.2.2	—	1	90490A265	0000
	1 5/8"-5 1/2				2 7/16"	1 25/64"	SAE Grade 2	ASME B18.2.2	—	1	90490A061	0000
	1 5/8"-12				2 7/16"	1 25/64"	SAE Grade 2	ASME B18.2.2	—	1	90490A266	00000


	1 3/4"-5	2 5/8"			1 1/2"	SAE Grade 2	ASME B18.2.2	Material Certificate	1	90490A044	0000
	1 3/4"-12	2 5/8"	1 1/2"		SAE Grade 2	ASME B18.2.2	—	1	90490A268	0000
	1 7/8"-5	2 13/16"	1 39/64"		SAE Grade 2	ASME B18.2.2	—	1	90490A065	00000
	1 7/8"-12	2 13/16"	1 39/64"		SAE Grade 2	ASME B18.2.2	—	1	90490A269	00000
	2"-12	3"	1 23/32"		SAE Grade 2	ASME B18.2.2	—	1	90490A270	0000
	2 1/4"-4 1/2	3 3/8"	1 15/16"		SAE Grade 2	ASME B18.2.2	Material Certificate	1	90490A048	00000
	2 1/4"-12	3 3/8"	1 15/16"		SAE Grade 2	ASME B18.2.2	—	1	90490A273	00000
	2 1/2"-4	3 3/4"	2 5/32"		SAE Grade 2	ASME B18.2.2	—	1	90490A051	00000
	2 1/2"-12	3 3/4"	2 5/32"		SAE Grade 2	ASME B18.2.2	—	1	90490A275	00000
	2 3/4"-4	4 1/8"	2 3/8"		SAE Grade 2	ASME B18.2.2	—	1	90490A053	00000


	3"-4	4 1/2"	2 19/32"		SAE Grade 2	ASME B18.2.2	—	1	90490A055	00000
	3"-12	4 1/2"	2 19/32"		SAE Grade 2	ASME B18.2.2	Material Certificate	1	90490A280	00000
	3 1/2"-4	5 3/8"	3 1/2"		SAE Grade 2	ASME B18.2.2	Material Certificate	1	90490A310	000000

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.

Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.

High-Strength 17-4 PH Stainless Steel—The strongest stainless steel nuts we offer, these are comparable in strength to Grade 8 steel. Use them in high-stress applications, such as fastening structural parts and pump components. They won’t rust in wet and outdoor environments, but they can’t handle the harsh chemicals and acids that 316 stainless steel can.

Seize-Resistant High-Strength 410 Stainless Steel—Resists sticking during installation and is comparable in strength to Grade 5 steel. These nuts are not as corrosion resistant as 18-8 stainless steel, so they're best for environments that experience occasional moisture.

High-Temperature High-Strength A286 Stainless Steel—Stronger than 316 stainless steel and withstands higher temperatures. These nuts resist corrosion from chemicals, such as bleach and chlorine, but they won't hold up to salt water as well as 316 stainless steel.

Ultra-Corrosion-Resistant Alloy 20 Stainless Steel—The most corrosion-resistant stainless steel nuts we offer, these hold up in just about any environment. They won't pit or weaken when exposed to salt water and harsh chemicals, such as sulfuric acid. Also known as Carpenter 20.

	Thread Size	Wd.	Ht.	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		1/4"-20	7/16"	7/32"	—	Material Certificate	100	91845A029	00000


		1/4"-20	7/16"	7/32"	ASTM F594	Material Certificate	50	92673A113	0000
		1/4"-28	7/16"	7/32"	—	—	100	91845A105	0000
		1/4"-28	7/16"	7/32"	ASTM F594	Material Certificate	50	92673A116	0000
		1/4"-32	7/16"	7/32"	—	—	1	95621A100	0000
		5/16"-18	1/2"	17/64"	—	Material Certificate	100	91845A030	0000
		5/16"-18	1/2"	17/64"	ASTM F594	Material Certificate	50	92673A119	0000
		5/16"-24	1/2"	17/64"	—	Material Certificate	100	91845A115	0000
		5/16"-24	1/2"	17/64"	ASTM F594	Material Certificate	50	92673A122	0000
		5/16"-32	1/2"	17/64"	—	Material Certificate	1	95621A200	0000
		3/8"-16	9/16"	21/64"	—	—	100	91845A031	00000


		3/8"-16	9/16"	21/64"	ASTM F594	Material Certificate	25	92673A125	0000
		3/8"-24	9/16"	21/64"	—	—	50	91845A125	0000
		3/8"-24	9/16"	21/64"	ASTM F594	Material Certificate	25	92673A128	0000
		3/8"-32	9/16"	21/64"	—	Material Certificate	1	95621A300	0000
		7/16"-14	11/16"	3/8"	—	Material Certificate	50	91845A300	0000
		7/16"-14	11/16"	3/8"	ASTM F594	Material Certificate	10	92673A131	0000
		7/16"-20	11/16"	3/8"	—	—	50	91845A135	00000
		7/16"-20	11/16"	3/8"	ASTM F594	Material Certificate	10	92673A134	0000
		7/16"-28	11/16"	3/8"	—	Material Certificate	1	95621A400	0000
		1/2"-13	3/4"	7/16"	—	Material Certificate	25	91845A310	0000


		1/2"-13	3/4"	7/16"	ASTM F594	Material Certificate	10	92673A137	0000
		1/2"-20	3/4"	7/16"	—	Material Certificate	25	91845A145	0000
		1/2"-20	3/4"	7/16"	ASTM F594	—	10	92673A141	0000
		1/2"-28	3/4"	7/16"	—	Material Certificate	1	91845A340	00000
		9/16"-12	7/8"	31/64"	—	—	10	91845A315	0000
		9/16"-12	7/8"	31/64"	ASTM F594	—	10	92673A199	0000
		9/16"-18	7/8"	31/64"	—	Material Certificate	10	91845A320	0000
		5/8"-11	15/16"	35/64"	—	—	10	91845A325	0000
		5/8"-11	15/16"	35/64"	ASTM F594	—	5	92673A144	0000
		5/8"-18	15/16"	35/64"	—	—	10	91845A165	0000


		5/8"-18	15/16"	35/64"	ASTM F594	—	5	92673A155	0000
		5/8"-24	15/16"	35/64"	—	Material Certificate	1	91845A345	00000
		11/16"-24	1"	27/64"	—	Material Certificate	1	95621A700	00000
		3/4"-10	1 1/8"	41/64"	—	—	10	91845A330	0000
		3/4"-10	1 1/8"	41/64"	ASTM F594	Material Certificate	5	92673A147	0000
		3/4"-16	1 1/8"	41/64"	—	Material Certificate	5	91845A175	0000
		3/4"-16	1 1/8"	41/64"	ASTM F594	Material Certificate	5	92673A157	0000
		3/4"-20	1 1/8"	41/64"	—	Material Certificate	1	91845A350	00000
		7/8"-9	1 5/16"	3/4"	—	—	5	91845A335	0000
		7/8"-9	1 5/16"	3/4"	ASTM F594	Material Certificate	1	92673A150	0000


		7/8"-14	1 5/16"	3/4"	—	—	5	91845A185	0000
		7/8"-14	1 5/16"	3/4"	ASTM F594	—	1	92673A296	0000
		7/8"-20	1 5/16"	3/4"	—	Material Certificate	1	91845A355	00000
		1"-8	1 1/2"	55/64"	—	—	5	91845A038	0000
		1"-8	1 1/2"	55/64"	ASTM F594	Material Certificate	1	92673A153	0000
		1"-12	1 1/2"	55/64"	—	—	1	91845A203	0000
		1"-12	1 1/2"	55/64"	ASTM F594	—	1	92673A331	0000
		1"-14	1 1/2"	55/64"	—	—	1	91845A205	0000
		1"-14	1 1/2"	55/64"	ASTM F594	—	1	92673A373	0000
		1 1/8"-7	1 11/16"	31/32"	—	Material Certificate	1	91845A039	0000

1 1/8"-7	1 11/16"	31/32"	ASTM F594	—	1	92673A382	0000
1 1/8"-12	1 11/16"	31/32"	—	—	1	91845A215	0000
1 1/4"-7	1 7/8"	1 1/16"	—	Material Certificate	1	91845A040	0000
1 1/4"-7	1 7/8"	1 1/16"	ASTM F594	—	1	92673A438	0000
1 1/4"-12	1 7/8"	1 1/16"	—	—	1	91845A235	0000
1 3/8"-6	2 1/16"	1 11/64"	—	Material Certificate	1	91845A042	0000
1 1/2"-6	2 1/4"	1 9/32"	—	—	1	91845A041	0000
1 1/2"-6	2 1/4"	1 9/32"	ASTM F594	—	1	92673A857	00000
1 1/2"-12	2 1/4"	1 9/32"	—	Material Certificate	1	91845A265	0000
1 3/4"-5	2 5/8"	1 1/2"	—	Material Certificate	1	91845A044	00000
2"-4 1/2	3"	1 23/32"	—	Material Certificate	1	91845A045	00000

Black-Oxide 18-8 Stainless Steel



		1/4"-20	7/16"	7/32"	—	Material Certificate	50	97149A100	0000


		1/4"-28	7/16"	7/32"	—	Material Certificate	50	97149A120	0000
		5/16"-18	1/2"	17/64"	—	Material Certificate	25	97149A150	0000
		5/16"-24	1/2"	17/64"	—	Material Certificate	25	97149A170	0000
		3/8"-16	9/16"	21/64"	—	Material Certificate	25	97149A200	0000
		3/8"-24	9/16"	21/64"	—	—	25	97149A210	0000
		7/16"-14	11/16"	3/8"	—	—	10	97149A230	0000
		7/16"-20	11/16"	3/8"	—	—	10	97149A240	0000
		1/2"-13	3/4"	7/16"	—	Material Certificate	10	97149A250	0000
		1/2"-20	3/4"	7/16"	—	—	10	97149A270	0000
		5/8"-11	15/16"	35/64"	—	Material Certificate	5	97149A300	0000


		5/8"-18	15/16"	35/64"	—	—	5	97149A310	0000
		3/4"-10	1 1/8"	41/64"	—	Material Certificate	1	97149A350	0000
		3/4"-16	1 1/8"	41/64"	—	—	1	97149A370	0000


		Highly Corrosion-Resistant 316 Stainless Steel



				1/4"-20	7/16"	7/32"	—	Material Certificate	100	94804A029	0000


				1/4"-20	7/16"	7/32"	ASTM F594	Material Certificate	50	94819A043	0000
				1/4"-28	7/16"	7/32"	—	—	50	94804A305	0000
				1/4"-28	7/16"	7/32"	ASTM F594	—	50	94819A100	00000
				5/16"-18	1/2"	17/64"	—	Material Certificate	50	94804A030	0000
				5/16"-18	1/2"	17/64"	ASTM F594	Material Certificate	25	94819A046	0000
				5/16"-24	1/2"	17/64"	—	Material Certificate	50	94804A315	0000
				5/16"-24	1/2"	17/64"	ASTM F594	—	25	94819A115	0000
				3/8"-16	9/16"	21/64"	—	Material Certificate	50	94804A320	0000
				3/8"-16	9/16"	21/64"	ASTM F594	Material Certificate	25	94819A049	0000
				3/8"-24	9/16"	21/64"	—	—	25	94804A325	0000


				3/8"-24	9/16"	21/64"	ASTM F594	—	25	94819A134	0000
				7/16"-14	11/16"	3/8"	—	—	25	94804A330	0000
				7/16"-14	11/16"	3/8"	ASTM F594	—	10	94819A052	0000
				7/16"-20	11/16"	3/8"	—	—	10	94804A335	0000
				7/16"-20	11/16"	3/8"	ASTM F594	—	10	94819A148	0000
				1/2"-13	3/4"	7/16"	—	Material Certificate	10	94804A340	0000
				1/2"-13	3/4"	7/16"	ASTM F594	Material Certificate	5	94819A055	0000
				1/2"-20	3/4"	7/16"	—	Material Certificate	10	94804A345	0000
				1/2"-20	3/4"	7/16"	ASTM F594	—	5	94819A149	0000
				9/16"-12	7/8"	31/64"	—	—	5	94804A348	0000


				9/16"-12	7/8"	31/64"	ASTM F594	—	5	94819A156	0000
				9/16"-18	7/8"	31/64"	—	—	5	94804A349	0000
				5/8"-11	15/16"	35/64"	—	Material Certificate	10	94804A351	0000
				5/8"-11	15/16"	35/64"	ASTM F594	Material Certificate	5	94819A058	0000
				5/8"-18	15/16"	35/64"	—	Material Certificate	5	94804A355	0000
				5/8"-18	15/16"	35/64"	ASTM F594	—	5	94819A172	0000
				3/4"-10	1 1/8"	41/64"	—	Material Certificate	5	94804A360	0000
				3/4"-10	1 1/8"	41/64"	ASTM F594	Material Certificate	1	94819A061	0000
				3/4"-16	1 1/8"	41/64"	—	—	5	94804A365	0000
				3/4"-16	1 1/8"	41/64"	ASTM F594	—	1	94819A180	0000


7/8"-9	1 5/16"			3/4"	—	Material Certificate	1	94804A370	0000
7/8"-9	1 5/16"			3/4"	ASTM F594	Material Certificate	1	94819A064	0000
7/8"-14	1 5/16"			3/4"	—	—	1	94804A375	0000
7/8"-14	1 5/16"			3/4"	ASTM F594	—	1	94819A239	0000
1"-8	1 1/2"			55/64"	—	Material Certificate	1	94804A038	0000
1"-8	1 1/2"			55/64"	ASTM F594	—	1	94819A067	0000
1"-12	1 1/2"			55/64"	—	Material Certificate	1	94804A152	0000
1"-12	1 1/2"			55/64"	ASTM F594	—	1	94819A304	00000
1"-14	1 1/2"			55/64"	—	—	1	94804A156	0000
1"-14	1 1/2"			55/64"	ASTM F594	—	1	94819A408	0000


1 1/8"-7	1 11/16"			31/32"	—	Material Certificate	1	94804A039	0000
1 1/8"-7	1 11/16"			31/32"	ASTM F594	—	1	94819A409	0000
1 1/4"-7	1 7/8"			1 1/16"	—	—	1	94804A040	0000
1 1/4"-7	1 7/8"			1 1/16"	ASTM F594	—	1	94819A425	00000
1 3/8"-6	2 1/16"			1 11/64"	—	Material Certificate	1	94804A169	0000
1 1/2"-6	2 1/4"			1 9/32"	—	Material Certificate	1	94804A041	0000
1 1/2"-6	2 1/4"			1 9/32"	ASTM F594	—	1	94819A854	00000
1 3/4"-5	2 5/8"			1 1/2"	—	—	1	94804A055	00000
2"-4 1/2	3"			1 23/32"	—	—	1	94804A065	00000


High-Strength 17-4 PH Stainless Steel



		1/4"-20	7/16"	7/32"	ASTM F594	—	1	93061A113	00000


		5/16"-18	1/2"	17/64"	ASTM F594	—	1	93061A117	00000
		3/8"-16	9/16"	21/64"	ASTM F594	Material Certificate	1	93061A122	00000
		1/2"-13	3/4"	7/16"	ASTM F594	Material Certificate	1	93061A127	00000
		3/4"-10	1 1/8"	41/64"	ASTM F594	Material Certificate	1	93061A128	00000


		Seize-Resistant High-Strength 410 Stainless Steel



				1/4"-20	7/16"	7/32"	—	Material Certificate	5	99129A029	0000


				5/16"-18	1/2"	17/64"	—	Material Certificate	5	99129A051	0000
				3/8"-16	9/16"	21/64"	—	—	5	99129A310	0000
				1/2"-13	3/4"	7/16"	—	—	5	99129A325	00000


				High-Temperature High-Strength A286 Stainless Steel



						1/4"-20	7/16"	7/32"	—	Material Certificate	1	93043A327	00000


						5/16"-18	1/2"	17/64"	—	—	1	93043A332	00000
						3/8"-16	9/16"	21/64"	—	Material Certificate	1	93043A339	00000
						1/2"-13	3/4"	7/16"	—	—	1	93043A346	00000


						Ultra-Corrosion-Resistant Alloy 20 Stainless Steel



								1/4"-20	7/16"	7/32"	—	—	1	90775A029	0000


								3/8"-16	9/16"	21/64"	—	—	1	90775A031	0000
								1/2"-13	3/4"	7/16"	—	—	1	90775A033	00000

Ultra-High-Temperature Molybdenum

Molybdenum—Use these nuts with molybdenum screws and washers in high-temperature oxygen-free environments, such as vacuum furnaces. Since they’re thermally conductive, heat passes through them quickly without deforming them. They’re stronger than ceramic nuts yet still handle similar temperatures with no trouble. However, they will corrode in high heat when oxygen is present. They’re also nonmagnetic.

	Wd.	Ht.	Specs. Met	Pkg. Qty.		Pkg.
Molybdenum



	1/4"-20	7/16"	7/32"	ASME B18.2.2	1	91609A121	00000


	3/8"-16	9/16"	21/64"	ASME B18.2.2	1	91609A123	00000
	1/2"-13	3/4"	7/16"	ASME B18.2.2	1	91609A124	00000
	M6 × 1 mm	10 mm	5.2 mm	ISO 4032	1	91609A621	00000
	M8 × 1.25 mm	13 mm	6.5 mm	DIN 934	1	91609A622	00000

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.

Medium-Strength Steel

These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

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

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

	Wd.	Ht.	Fastener Strength Grade/Class	Certificate Type	Pkg. Qty.		Pkg.
Zinc-Plated Steel



	1/4"-20	1/2"	15/64"	SAE Grade 5	Material Certificate	100	91903A029	000000


	5/16"-18	9/16"	19/64"	SAE Grade 5	—	50	91903A031	0000
	3/8"-16	11/16"	23/64"	SAE Grade 5	—	50	91903A032	00000
	1/2"-13	7/8"	31/64"	SAE Grade 5	Material Certificate	25	91903A033	00000
	5/8"-11	1 1/16"	39/64"	SAE Grade 5	—	10	91903A034	00000
	3/4"-10	1 1/4"	47/64"	SAE Grade 5	—	10	91903A035	00000
	1"-8	1 5/8"	63/64"	SAE Grade 5	—	1	91903A036	0000
	1 1/4"-7	2"	1 7/32"	SAE Grade 5	Material Certificate	1	91903A039	0000


	Steel



			1/4"-20	1/2"	15/64"	SAE Grade 5	—	100	95045A029	0000


			5/16"-18	9/16"	19/64"	SAE Grade 5	—	100	95045A030	00000
			3/8"-16	11/16"	23/64"	SAE Grade 5	—	50	95045A031	00000
			7/16"-14	3/4"	27/64"	SAE Grade 5	—	25	95045A032	0000
			1/2"-13	7/8"	31/64"	SAE Grade 5	Material Certificate	25	95045A033	00000
			9/16"-12	15/16"	35/64"	SAE Grade 5	—	25	95045A034	00000
			5/8"-11	1 1/16"	39/64"	SAE Grade 5	Material Certificate	10	95045A035	0000
			3/4"-10	1 1/4"	47/64"	SAE Grade 5	—	10	95045A036	00000
			7/8"-9	1 7/16"	55/64"	SAE Grade 5	—	5	95045A037	00000
			1"-8	1 5/8"	63/64"	SAE Grade 5	Material Certificate	5	95045A038	00000
			1 1/8"-7	1 13/16"	1 7/64"	SAE Grade 5	—	1	95045A039	0000


			1 1/4"-7	2"	1 7/32"	SAE Grade 5	Material Certificate	1	95045A040	0000
			1 3/8"-6	2 3/16"	1 11/32"	SAE Grade 5	—	1	95045A041	0000
			1 1/2"-6	2 3/8"	1 15/32"	SAE Grade 5	—	1	95045A042	0000
			1 3/4"-5	2 3/4"	1 23/32"	SAE Grade 5	—	1	95045A044	00000
			2"-4 1/2	3 1/8"	1 31/32"	SAE Grade 5	—	1	95045A046	00000
			2 1/4"-4 1/2	3 1/2"	2 13/64"	SAE Grade 5	—	1	95045A048	00000
			2 1/2"-4	3 7/8"	2 29/64"	SAE Grade 5	Material Certificate	1	95045A049	00000

Extreme-Strength Steel

These nuts are about 20% stronger than high-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

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

PTFE-Coated Steel—A slippery PTFE coating prevents these nuts from becoming stuck during installation. They resist rust in wet and outdoor environments, however they're not recommended for prolonged exposure since the coating can wear off.

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



		1/4"-20	1/2"	15/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	100	96460A110	000000


		1/4"-28	1/2"	15/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	50	96460A120	00000
		5/16"-18	9/16"	19/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	50	96460A230	0000
		5/16"-24	9/16"	19/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	25	96460A240	0000
		3/8"-16	11/16"	23/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	50	96460A250	00000
		3/8"-24	11/16"	23/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	25	96460A260	00000
		1/2"-13	7/8"	31/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	25	96460A370	00000
		1/2"-20	7/8"	31/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	10	96460A380	0000
		5/8"-11	1 1/16"	39/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	10	96460A510	00000
		5/8"-18	1 1/16"	39/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	10	96460A530	00000
		3/4"-10	1 1/4"	47/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	10	96460A620	00000


		3/4"-16	1 1/4"	47/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	10	96460A640	00000
		1"-8	1 5/8"	63/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	5	96460A750	00000
		1"-14	1 5/8"	63/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	1	96460A780	0000


		Black-Oxide Steel



				1/4"-20	1/2"	15/64"	ASTM Grade 2H	ASTM A194	—	25	91026A029	00000


				5/16"-18	9/16"	19/64"	ASTM Grade 2H	ASTM A194	—	10	91026A030	0000
				3/8"-16	11/16"	23/64"	ASTM Grade 2H	ASTM A194	—	10	91026A031	0000
				7/16"-14	3/4"	27/64"	ASTM Grade 2H	ASTM A194	—	10	91026A032	0000
				1/2"-13	7/8"	31/64"	ASTM Grade 2H	ASTM A194	—	10	91026A033	0000
				5/8"-11	1 1/16"	39/64"	ASTM Grade 2H	ASTM A194	—	5	91026A035	0000
				3/4"-10	1 1/4"	47/64"	ASTM Grade 2H	ASTM A194	—	5	91026A036	0000
				7/8"-9	1 7/16"	55/64"	ASTM Grade 2H	ASTM A194	—	1	91026A037	0000
				1"-8	1 5/8"	63/64"	ASTM Grade 2H	ASTM A194	—	1	91026A038	0000


				Hot-Dipped Galvanized Steel



						1/4"-20	1/2"	15/64"	ASTM Grade 2H	ASTM A194	—	50	95025A370	00000


						3/8"-16	11/16"	23/64"	ASTM Grade 2H	ASTM A194	—	50	95025A380	00000
						1/2"-13	7/8"	31/64"	ASTM Grade 2H	ASTM A194	—	25	95025A405	00000
						5/8"-11	1 1/16"	39/64"	ASTM Grade 2H	ASTM A194	—	10	95025A410	0000
						3/4"-10	1 1/4"	47/64"	ASTM Grade 2H	ASTM A194	—	10	95025A415	00000
						7/8"-9	1 7/16"	55/64"	ASTM Grade 2H	ASTM A194	—	5	95025A420	00000
						1"-8	1 5/8"	63/64"	ASTM Grade 2H	ASTM A194	—	5	95025A425	00000
						1 1/8"-7	1 13/16"	1 7/64"	ASTM Grade 2H	ASTM A194	—	1	95025A430	0000
						1 1/8"-8	1 13/16"	1 7/64"	ASTM Grade 2H	ASTM A194	—	1	95025A432	0000
						1 1/4"-7	2"	1 7/32"	ASTM Grade 2H	ASTM A194	—	1	95025A435	0000
						1 1/4"-8	2"	1 7/32"	ASTM Grade 2H	ASTM A194	—	1	95025A436	0000


						1 3/8"-6	2 3/16"	1 11/32"	ASTM Grade 2H	ASTM A194	—	1	95025A437	0000
						1 1/2"-6	2 3/8"	1 15/32"	ASTM Grade 2H	ASTM A194	—	1	95025A440	00000
						1 3/4"-5	2 3/4"	1 23/32"	ASTM Grade 2H	ASTM A194	—	1	95025A445	00000
						2"-4 1/2	3 1/8"	1 31/32"	ASTM Grade 2H	ASTM A194	—	1	95025A455	00000


Steel



						1/4"-20	1/2"	15/64"	ASTM Grade 2H	ASTM A194	—	100	90521A106	00000


						1/4"-28	1/2"	15/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	50	90521A104	00000
						5/16"-18	9/16"	19/64"	ASTM Grade 2H	ASTM A194	Material Certificate	50	90521A107	00000
						5/16"-24	9/16"	19/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	50	90521A108	00000
						3/8"-16	11/16"	23/64"	ASTM Grade 2H	ASTM A194	Material Certificate	50	90521A225	00000
						3/8"-24	11/16"	23/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	25	90521A229	0000
						7/16"-14	3/4"	27/64"	ASTM Grade 2H	ASTM A194	—	25	90521A109	00000
						7/16"-20	3/4"	27/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	25	90521A110	00000
						1/2"-13	7/8"	31/64"	ASTM Grade 2H	ASTM A194	Material Certificate	25	90521A235	00000
						1/2"-20	7/8"	31/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	25	90521A236	00000
						9/16"-12	15/16"	35/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	10	90521A281	0000


						5/8"-11	1 1/16"	39/64"	ASTM Grade 2H	ASTM A194	Material Certificate	10	90521A240	00000
						5/8"-18	1 1/16"	39/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	25	90521A242	00000
						3/4"-10	1 1/4"	47/64"	ASTM Grade 2H	ASTM A194	—	10	90521A245	00000
						3/4"-16	1 1/4"	47/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	10	90521A247	00000
						7/8"-9	1 7/16"	55/64"	ASTM Grade 2H	ASTM A194	Material Certificate	10	90521A250	00000
		7/8"-14				1 7/16"	55/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	10	90521A253	00000
		1"-8	1 5/8"			63/64"	ASTM Grade 2H	ASTM A194	—	5	90521A255	00000
		1"-12	1 5/8"			63/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	1	90521A257	0000
		1"-14	1 5/8"			63/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	5	90521A259	00000
		1 1/8"-7	1 13/16"			1 7/64"	ASTM Grade 2H	ASTM A194	—	1	90521A260	0000


		1 1/8"-8	1 13/16"			1 7/64"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A265	0000
		1 1/8"-12	1 13/16"			1 7/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	1	90521A267	0000
		1 1/4"-7	2"			1 7/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A270	00000
		1 1/4"-8	2"			1 7/32"	ASTM Grade 2H	ASTM A194	—	1	90521A275	0000
		1 1/4"-12	2"			1 7/32"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	1	90521A278	0000
		1 3/8"-6	2 3/16"			1 11/32"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	1	90521A290	0000
		1 3/8"-8	2 3/16"			1 11/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A042	0000
		1 3/8"-12	2 3/16"			1 11/32"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	1	90521A295	0000
		1 1/2"-6	2 3/8"			1 15/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A039	0000
		1 1/2"-8	2 3/8"			1 15/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A041	0000


		1 1/2"-12	2 3/8"	1 15/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A052	00000
		1 5/8"-8	2 9/16"	1 19/32"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	1	90521A055	0000
		1 3/4"-5	2 3/4"	1 23/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A043	00000
		1 3/4"-8	2 3/4"	1 23/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A044	00000
		1 7/8"-8	2 15/16"	1 27/32"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	1	90521A037	00000
		2"-4 1/2	3 1/8"	1 31/32"	ASTM Grade 2H	ASTM A194	Material Certificate	1	90521A038	00000
		2"-8	3 1/8"	1 31/32"	ASTM Grade 2H	ASTM A194	—	1	90521A046	00000
		2 1/4"-4 1/2	3 1/2"	2 13/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	1	90521A282	00000
		2 1/4"-8	3 1/2"	2 13/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	Material Certificate	1	90521A050	00000
		2 1/2"-4	3 7/8"	2 29/64"	ASTM Grade 2H	ASME B18.2.2, ASTM A194	—	1	90521A283	00000


		Blue PTFE-Coated Steel



				1/2"-13	7/8"	31/64"	ASTM Grade 2H	ASTM A194	—	25	90212A300	00000


				5/8"-11	1 1/16"	39/64"	ASTM Grade 2H	ASTM A194	—	10	90212A400	00000
				3/4"-10	1 1/4"	47/64"	ASTM Grade 2H	ASTM A194	—	10	90212A500	00000
				7/8"-9	1 7/16"	55/64"	ASTM Grade 2H	ASTM A194	—	5	90212A600	00000
1"-8				1 5/8"	63/64"	ASTM Grade 2H	ASTM A194	—	5	90212A700	00000
1 1/8"-8	1 13/16"			1 7/64"	ASTM Grade 2H	ASTM A194	—	1	90212A810	00000
1 1/4"-8	2"			1 7/32"	ASTM Grade 2H	ASTM A194	—	1	90212A811	00000
1 3/8"-8	2 3/16"			1 11/32"	ASTM Grade 2H	ASTM A194	—	1	90212A812	00000
1 1/2"-8	2 3/8"			1 15/32"	ASTM Grade 2H	ASTM A194	—	1	90212A813	00000
1 3/4"-8	2 3/4"			1 23/32"	ASTM Grade 2H	ASTM A194	—	1	90212A815	00000
1 7/8"-8	2 15/16"			1 27/32"	ASTM Grade 2H	ASTM A194	—	1	90212A816	00000


2"-8	3 1/8"			1 31/32"	ASTM Grade 2H	ASTM A194	—	1	90212A817	00000

Low-Strength Steel

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

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

	Wd.	Ht.	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Zinc-Plated Steel



	1/4"-20	1/2"	15/64"	ASME B18.2.2	—	100	94811A029	000000


	5/16"-18	9/16"	19/64"	ASME B18.2.2	—	100	94811A030	00000
	3/8"-16	11/16"	23/64"	ASME B18.2.2	—	100	94811A031	00000
	7/16"-14	3/4"	27/64"	ASME B18.2.2	—	50	94811A230	00000
	1/2"-13	7/8"	31/64"	ASME B18.2.2	—	50	94811A235	00000
	9/16"-12	15/16"	35/64"	ASME B18.2.2	—	25	94811A240	00000
	5/8"-11	1 1/16"	39/64"	ASME B18.2.2	—	25	94811A245	00000
	3/4"-10	1 1/4"	47/64"	ASME B18.2.2	—	10	94811A250	00000
	7/8"-9	1 7/16"	55/64"	ASME B18.2.2	—	10	94811A255	00000
	1"-8	1 5/8"	63/64"	ASME B18.2.2	—	5	94811A038	00000
	1 1/8"-7	1 13/16"	1 7/64"	ASME B18.2.2	Material Certificate	5	94811A265	00000


	1 1/8"-8	1 13/16"	1 7/64"	ASME B18.2.2, SAE J995	—	1	94811A268	00000
	1 1/4"-7	2"	1 7/32"	ASME B18.2.2, SAE J995	—	1	94811A270	0000
	1 1/2"-6	2 3/8"	1 15/32"	ASME B18.2.2	—	1	94811A041	0000
	1 7/8"-8	2 15/16"	1 27/32"	ASME B18.2.2, SAE J995	—	1	94811A050	00000
	2"-4 1/2	3 1/8"	1 31/32"	ASME B18.2.2	Material Certificate	1	94811A075	00000


	Black-Oxide Steel



			1/4"-20	1/2"	15/64"	—	—	50	91991A101	00000


			5/16"-18	9/16"	19/64"	—	—	50	91991A102	00000
			3/8"-16	11/16"	23/64"	—	—	25	91991A103	00000
			1/2"-13	7/8"	31/64"	—	—	10	91991A104	00000


			Steel



					1/4"-20	1/2"	15/64"	ASME B18.2.2	—	100	90498A029	0000


					5/16"-18	9/16"	19/64"	ASME B18.2.2	—	100	90498A030	0000
					3/8"-16	11/16"	23/64"	ASME B18.2.2	—	100	90498A031	00000
					7/16"-14	3/4"	27/64"	ASME B18.2.2	—	50	90498A032	00000
					1/2"-13	7/8"	31/64"	ASME B18.2.2	—	50	90498A033	00000
					9/16"-12	15/16"	35/64"	ASME B18.2.2, SAE J995	—	25	90498A345	0000
					5/8"-11	1 1/16"	39/64"	ASME B18.2.2	—	25	90498A355	00000
					3/4"-10	1 1/4"	47/64"	ASME B18.2.2	—	25	90498A365	00000
					1"-8	1 5/8"	63/64"	ASME B18.2.2	—	5	90498A385	00000
					1 1/8"-7	1 13/16"	1 7/64"	ASME B18.2.2	—	5	90498A395	00000
					1 1/4"-7	2"	1 7/32"	ASME B18.2.2	—	5	90498A410	00000


					1 3/8"-6	2 3/16"	1 11/32"	ASME B18.2.2	—	1	90498A042	0000
					1 1/2"-6	2 3/8"	1 15/32"	ASME B18.2.2	—	1	90498A041	0000
					2"-4 1/2	3 1/8"	1 31/32"	ASME B18.2.2	Material Certificate	1	90498A046	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.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Thread Size	Wd.	Ht.	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		1/4"-20	1/2"	15/64"	—	100	91849A029	000000


		1/4"-28	1/2"	15/64"	Material Certificate	50	91849A128	0000
		5/16"-18	9/16"	19/64"	—	50	91849A030	0000
		5/16"-24	9/16"	19/64"	—	25	91849A131	0000
		3/8"-16	11/16"	23/64"	—	25	91849A625	0000
		3/8"-24	11/16"	23/64"	—	10	91849A628	0000
		7/16"-14	3/4"	27/64"	—	10	91849A630	0000
		7/16"-20	3/4"	27/64"	—	10	91849A655	0000
		1/2"-13	7/8"	31/64"	Material Certificate	10	91849A635	0000
		1/2"-20	7/8"	31/64"	—	5	91849A636	0000
		9/16"-12	15/16"	35/64"	—	5	91849A637	0000


		5/8"-11	1 1/16"	39/64"	Material Certificate	10	91849A640	00000
		5/8"-18	1 1/16"	39/64"	—	5	91849A660	0000
		3/4"-10	1 1/4"	47/64"	Material Certificate	5	91849A645	0000
		3/4"-16	1 1/4"	47/64"	Material Certificate	1	91849A665	0000
		7/8"-9	1 7/16"	55/64"	—	1	91849A650	0000
		1"-8	1 5/8"	63/64"	Material Certificate	1	91849A038	0000
		1 1/8"-7	1 13/16"	1 7/64"	Material Certificate	1	91849A039	0000
		1 1/4"-7	2"	1 7/32"	—	1	91849A040	0000
		1 3/8"-6	2 3/16"	1 11/32"	Material Certificate	1	91849A042	00000
		1 1/2"-6	2 3/8"	1 15/32"	—	1	91849A043	00000


		1 3/4"-5	2 3/4"	1 23/32"	Material Certificate	1	91849A044	00000
		2"-4 1/2	3 1/8"	1 31/32"	Material Certificate	1	91849A048	00000


		Highly Corrosion-Resistant 316 Stainless Steel



				1/4"-20	1/2"	15/64"	—	50	91850A029	00000


				1/4"-28	1/2"	15/64"	—	25	91850A128	00000
				5/16"-18	9/16"	19/64"	—	25	91850A185	0000
				5/16"-24	9/16"	19/64"	—	10	91850A188	0000
				3/8"-16	11/16"	23/64"	—	10	91850A190	0000
				3/8"-24	11/16"	23/64"	—	5	91850A193	0000
				7/16"-14	3/4"	27/64"	—	10	91850A195	00000
				7/16"-20	3/4"	27/64"	—	5	91850A230	0000
				1/2"-13	7/8"	31/64"	Material Certificate	5	91850A210	0000
				1/2"-20	7/8"	31/64"	—	5	91850A204	00000
				5/8"-11	1 1/16"	39/64"	Material Certificate	5	91850A220	00000


				5/8"-18	1 1/16"	39/64"	—	1	91850A235	0000
				3/4"-10	1 1/4"	47/64"	—	1	91850A225	0000
				3/4"-16	1 1/4"	47/64"	—	1	91850A240	0000
				7/8"-9	1 7/16"	55/64"	—	1	91850A037	0000
				1"-8	1 5/8"	63/64"	Material Certificate	1	91850A038	0000
				1 1/8"-7	1 13/16"	1 7/64"	Material Certificate	1	91850A039	00000
				1 1/4"-7	2"	1 7/32"	Material Certificate	1	91850A040	00000
				1 3/8"-6	2 3/16"	1 11/32"	Material Certificate	1	91850A042	00000
				1 1/2"-6	2 3/8"	1 15/32"	Material Certificate	1	91850A043	00000
				1 3/4"-5	2 3/4"	1 23/32"	Material Certificate	1	91850A046	00000


2"-4 1/2	3 1/8"			1 31/32"	Material Certificate	1	91850A049	00000

Corrosion-Resistant Nickel

400 Nickel—Also known as Monel, 400 nickel is an economical alternative to titanium. These nuts are just as corrosion resistant to stand up to salt water and strong acids. However, they are not as strong as C276 nickel nuts.

	Wd.	Ht.	Pkg. Qty.		Pkg.
400 Nickel



	1/2"-13	7/8"	31/64"	1	90810A216	000000


	5/8"-11	1 1/16"	39/64"	1	90810A217	00000
	3/4"-10	1 1/4"	47/64"	1	90810A218	00000

Bronze

Silicon Bronze—More resistant to salt water than brass, these nuts are a good choice for marine environments. They are also stronger than brass and more resistant to abrasion and wear. Choose them for machinery with rotating parts or other applications where nearby components may rub against the nut.

	Wd.	Ht.	Pkg. Qty.		Pkg.
Silicon Bronze



	1/4"-20	1/2"	15/64"	10	92049A029	00000


	5/16"-18	9/16"	19/64"	10	92049A030	00000
	3/8"-16	11/16"	23/64"	5	92049A031	0000
	1/2"-13	7/8"	31/64"	1	92049A032	0000
	5/8"-11	1 1/16"	39/64"	1	92049A033	00000
	3/4"-10	1 1/4"	47/64"	1	92049A034	00000

Heavy-Profile Hex Nuts for High-Pressure Applications

These nuts are hardened, so they maintain their strength under high pressure and temperature. Pair them with ASTM A193 screws to fasten critical components, such as valves and flanges, in pressure tanks, boilers, and heat exchangers. About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.

High-Strength Steel

Rated Grade 7 or Grade 8, these nuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

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

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

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



	3/8"-16	11/16"	23/64"	ASTM Grade 7	ASTM A194	—	1	94485A140	00000


	1/2"-13	7/8"	31/64"	ASTM Grade 7	ASTM A194	—	1	94485A150	0000
	5/8"-11	1 1/16"	39/64"	ASTM Grade 7	ASTM A194	—	1	94485A160	0000
	3/4"-10	1 1/4"	47/64"	ASTM Grade 7	ASTM A194	—	1	94485A170	0000
	7/8"-9	1 7/16"	55/64"	ASTM Grade 7	ASTM A194	—	1	94485A180	0000
	1"-8	1 5/8"	63/64"	ASTM Grade 7	ASTM A194	—	1	94485A190	0000
	1 1/8"-7	1 13/16"	1 7/64"	ASTM Grade 7	ASTM A194	Material Certificate	1	94485A210	0000
	1 1/8"-8	1 13/16"	1 7/64"	ASTM Grade 7	ASTM A194	—	1	94485A220	0000
	1 1/4"-7	2"	1 7/32"	ASTM Grade 7	ASTM A194	—	1	94485A230	0000
	1 1/4"-8	2"	1 7/32"	ASTM Grade 7	ASTM A194	—	1	94485A240	0000


	Black-Oxide Steel



			1/2"-13	7/8"	31/64"	ASTM Grade 7	ASTM A194	—	1	94485A130	0000


			5/8"-11	1 1/16"	39/64"	ASTM Grade 7	ASTM A194	—	1	94485A110	0000
			3/4"-10	1 1/4"	47/64"	ASTM Grade 7	ASTM A194	Material Certificate	1	94485A120	0000


			Steel



					1/4"-20	1/2"	15/64"	ASTM Grade 7	ASTM A194	—	10	94485A121	0000


					3/8"-16	11/16"	23/64"	ASTM Grade 7	ASTM A194	—	10	94485A029	0000
					1/2"-13	7/8"	31/64"	ASTM Grade 7	ASTM A194	Material Certificate	10	94485A033	00000
					5/8"-11	1 1/16"	39/64"	ASTM Grade 7	ASTM A194	—	10	94485A035	00000
					3/4"-10	1 1/4"	47/64"	ASTM Grade 7	ASTM A194	—	10	94485A036	00000
					7/8"-9	1 7/16"	55/64"	ASTM Grade 7	ASTM A194	—	5	94485A037	0000
					1"-8	1 5/8"	63/64"	ASTM Grade 7	ASTM A194	—	5	94485A038	00000
					1 1/8"-7	1 13/16"	1 7/64"	ASTM Grade 7	ASTM A194	—	1	94485A041	0000
					1 1/4"-7	2"	1 7/32"	ASTM Grade 7	ASTM A194	Material Certificate	1	94485A044	0000

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.	Fastener Strength Grade/Class	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel



	1/4"-20	1/2"	15/64"	ASTM Grade 8	ASTM A194	Material Certificate	25	94252A703	00000


	1/4"-28	1/2"	15/64"	ASTM Grade 8	ASTM A194	—	1	94252A705	00000
	5/16"-18	9/16"	19/64"	ASTM Grade 8	ASTM A194	Material Certificate	10	94252A706	0000
	5/16"-24	9/16"	19/64"	ASTM Grade 8	ASTM A194	—	1	94252A707	00000
	3/8"-16	11/16"	23/64"	ASTM Grade 8	ASTM A194	Material Certificate	10	94252A709	0000
	3/8"-24	11/16"	23/64"	ASTM Grade 8	ASTM A194	—	1	94252A710	00000
	7/16"-14	3/4"	27/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A711	00000
	7/16"-20	3/4"	27/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A713	00000
	1/2"-13	7/8"	31/64"	ASTM Grade 8	ASTM A194	Material Certificate	10	94252A712	00000
	1/2"-20	7/8"	31/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A714	00000
	5/8"-11	1 1/16"	39/64"	ASTM Grade 8	ASTM A194	Material Certificate	5	94252A715	00000


	5/8"-18	1 1/16"	39/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A716	00000
	3/4"-10	1 1/4"	47/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A719	0000
	3/4"-16	1 1/4"	47/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A720	00000
	7/8"-9	1 7/16"	55/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A722	0000
	1"-8	1 5/8"	63/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A725	0000
	1"-14	1 5/8"	63/64"	ASTM Grade 8	ASTM A194	—	1	94252A726	00000
	1 1/8"-7	1 13/16"	1 7/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A730	00000
	1 1/8"-8	1 13/16"	1 7/64"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A732	0000
	1 1/4"-7	2"	1 7/32"	ASTM Grade 8	ASTM A194	Material Certificate	1	94252A735	00000

Mil. Spec. Hex Nuts

These nuts are manufactured and tested to strict U.S. military standards for material and construction.

Low-Strength Steel

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

	Wd.	Ht.	Mil. Spec.	Fastener Strength Grade/Class	Pkg. Qty.		Pkg.
Steel



	2"-4 1/2	3"	1 23/32"	MIL-DTL-1222	SAE Grade 2	1	90490A046	000000

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.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

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.	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel



	5/8"-24	15/16"	3/8"	Material Certificate	1	95621A600	000000


	7/8"-20	1 5/16"	31/64"	Material Certificate	1	95621A900	00000

Hex Nuts for High-Pressure Applications

Corrosion-Resistant Stainless Steel

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Wd.	Ht.	Fastener Strength Grade/Class	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Highly Corrosion-Resistant 316 Stainless Steel



	5/16"-18	1/2"	17/64"	ASTM Grade 8M	ASTM A194	—	5	95005A125	000000


	3/8"-16	9/16"	21/64"	ASTM Grade 8M	ASTM A194	—	1	95005A130	0000
	1/2"-13	3/4"	7/16"	ASTM Grade 8M	ASTM A194	Material Certificate	1	95005A135	0000
	5/8"-11	15/16"	35/64"	ASTM Grade 8M	ASTM A194	Material Certificate	1	95005A140	0000
	3/4"-10	1 1/8"	41/64"	ASTM Grade 8M	ASTM A194	Material Certificate	1	95005A145	00000
	1"-8	1 1/2"	55/64"	ASTM Grade 8M	ASTM A194	—	1	95005A150	00000