90202A254 | Round Coupling Nut

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Unified Standard Class 2B

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Sight Hole Diameter

620 Products

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Hex

The most commonly used coupling nuts

492 products

Round

Fit in tight spots and create a finished appearance

128 products

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With Sight Hole

Confirm that threads are fastened to the right depth

12 products

Performance

Corrosion Resistant

Won't rust in wet and outdoor environments

302 products

Coupling Nuts

Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.

Low-Strength Steel

Rated Grade 2 or lower, these are about half as strong as medium-strength steel coupling nuts. Use them with threaded rods that have a comparable 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.

Black-Oxide Steel—A dark, matte coating creates a finished look. Nuts offer minimal corrosion resistance, so they're best for dry environments.

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. Use with other hot-dipped galvanized fasteners to ensure the threads mate tightly.

Zinc-Flake-Coated Steel—The most durable zinc coating, zinc flake is a multilayer finish that resists wear for long-term rust protection. These nuts are 40 times as corrosion resistant as zinc-plated steel and have been tested to extreme standards, including 1,000 hours of salt spray. They are comparable to Magni-coated nuts.

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

	Thread Size	Lg.	Wd.	Threading	Min. Thread Lg.	Specs. Met		Each
Zinc-Plated Steel



		4-40	7/16"	5/16"	Fully Threaded	—	—	90264A410	00000


		6-32	1/2"	5/16"	Fully Threaded	—	—	90264A415	0000
		8-32	5/8"	5/16"	Fully Threaded	—	—	90264A420	0000
		10-24	3/4"	5/16"	Fully Threaded	—	—	90264A425	0000
		10-32	3/4"	5/16"	Fully Threaded	—	—	90264A430	0000
		1/4"-20	7/8"	3/8"	Fully Threaded	—	—	90264A435	0000
		1/4"-20	1 1/2"	7/16"	Fully Threaded	—	—	90264A437	0000
		1/4"-28	7/8"	3/8"	Fully Threaded	—	—	90264A440	0000
		5/16"-18	7/8"	1/2"	Fully Threaded	—	—	90264A445	0000
		5/16"-18	1 1/8"	1/2"	Fully Threaded	—	—	90264A111	0000
		5/16"-18	1 3/4"	1/2"	Fully Threaded	—	—	90264A447	0000


		5/16"-24	7/8"	7/16"	Fully Threaded	—	—	90264A112	0000
		5/16"-24	1 1/8"	1/2"	Fully Threaded	—	—	90264A450	0000
		3/8"-16	1 1/8"	1/2"	Fully Threaded	—	—	90264A113	0000
		3/8"-16	1 1/8"	11/16"	Fully Threaded	—	—	90264A213	0000
		3/8"-16	1 3/4"	5/8"	Fully Threaded	—	—	90264A460	0000
		3/8"-16	4"	3/4"	Partially Threaded	1 7/8"	—	90264A212	00000
		3/8"-24	1 1/8"	1/2"	Fully Threaded	—	—	90264A114	0000
		3/8"-24	1 3/4"	9/16"	Fully Threaded	—	—	90264A470	0000
		7/16"-14	1 3/4"	5/8"	Fully Threaded	—	—	90264A475	0000
		7/16"-20	1 1/4"	9/16"	Fully Threaded	—	—	90264A115	0000


		7/16"-20	1 3/4"	5/8"	Fully Threaded	—	—	90264A480	0000
		1/2"-13	1 1/4"	5/8"	Fully Threaded	—	—	90264A116	0000
		1/2"-13	1 3/4"	11/16"	Fully Threaded	—	—	90264A485	0000
		1/2"-13	1 3/4"	7/8"	Fully Threaded	—	—	90264A221	0000
		1/2"-13	4"	7/8"	Partially Threaded	1 7/8"	—	90264A222	00000
		1/2"-20	1 1/4"	5/8"	Fully Threaded	—	—	90264A117	0000
		1/2"-20	1 3/4"	11/16"	Fully Threaded	—	—	90264A505	0000
		9/16"-12	2 1/8"	13/16"	Fully Threaded	—	—	90264A515	0000
		9/16"-18	2 1/8"	13/16"	Fully Threaded	—	—	90264A520	0000
		5/8"-11	2 1/8"	13/16"	Fully Threaded	—	—	90264A525	0000


		5/8"-11	2 1/8"	1 1/16"	Fully Threaded	—	—	90264A231	0000
		5/8"-11	5"	1 1/8"	Partially Threaded	2 3/8"	—	90264A233	00000
		5/8"-18	2 1/8"	13/16"	Fully Threaded	—	—	90264A235	0000
		3/4"-10	1 1/2"	1 1/4"	Fully Threaded	—	—	90264A242	0000
		3/4"-10	2 1/4"	1"	Fully Threaded	—	—	90264A241	0000
		3/4"-10	2 1/4"	1 1/4"	Fully Threaded	—	—	90264A243	0000
		3/4"-10	3"	1"	Fully Threaded	—	—	90264A500	0000
		3/4"-10	5"	1 1/4"	Partially Threaded	2 3/8"	—	90264A244	00000
		3/4"-16	2 1/4"	1"	Fully Threaded	—	—	90264A245	0000
		7/8"-9	2 1/2"	1 1/4"	Fully Threaded	—	—	90264A250	0000


		7/8"-9	7"	1 3/8"	Partially Threaded	3 3/8"	—	90264A253	00000
		7/8"-14	2 1/2"	1 1/4"	Fully Threaded	—	—	90264A255	0000
		1"-8	2 1/2"	1 1/4"	Fully Threaded	—	—	90264A118	00000
		1"-8	2 3/4"	1 3/8"	Fully Threaded	—	—	90264A260	00000
		1"-8	3"	1 5/8"	Fully Threaded	—	—	90264A262	00000
		1"-8	7"	1 5/8"	Partially Threaded	3 3/8"	—	90264A263	00000
		1"-14	2 3/4"	1 3/8"	Fully Threaded	—	—	90264A265	00000
		1 1/8"-7	3"	1 1/2"	Fully Threaded	—	—	90264A119	00000
		1 1/8"-7	7 1/2"	1 3/4"	Partially Threaded	3 5/8"	—	90264A701	00000
		1 1/4"-7	3"	1 5/8"	Fully Threaded	—	—	90264A270	00000

1 1/4"-7	7 1/2"	2"	Partially Threaded	3 5/8"	—	90264A702	00000
1 1/4"-12	3"	1 5/8"	Fully Threaded	—	—	90264A275	00000
1 1/2"-6	3 1/2"	2"	Fully Threaded	—	—	90264A290	00000
1 1/2"-6	8"	2 3/8"	Partially Threaded	3 7/8"	—	90264A703	00000
1 1/2"-12	3 1/2"	2"	Fully Threaded	—	—	90264A295	00000
1 3/4"-5	5"	2 3/8"	Fully Threaded	—	—	90264A300	00000
2"-4 1/2	4 1/2"	2 3/4"	Fully Threaded	—	—	90264A310	00000
M2 × 0.4 mm	6 mm	4.5 mm	Fully Threaded	—	—	93355A510	0000
M2 × 0.4 mm	12 mm	4.5 mm	Partially Threaded	4.8 mm	—	90264A801	0000
M2.5 × 0.45 mm	6 mm	4.5 mm	Fully Threaded	—	—	93355A520	0000
M2.5 × 0.45 mm	12 mm	4.5 mm	Fully Threaded	—	—	90264A802	00000
M3 × 0.5 mm	9 mm	6 mm	Fully Threaded	—	—	93355A530	0000
M3 × 0.5 mm	18 mm	6 mm	Fully Threaded	—	—	90264A803	00000
M3.5 × 0.6 mm	10 mm	6 mm	Fully Threaded	—	—	93355A540	0000
M3.5 × 0.6 mm	18 mm	6 mm	Fully Threaded	—	—	90264A804	0000
M4 × 0.7 mm	12 mm	7 mm	Fully Threaded	—	DIN 6334	93355A310	0000
M4 × 0.7 mm	24 mm	8 mm	Fully Threaded	—	—	90264A805	0000
M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	—	DIN 6334	93355A320	0000
M5 × 0.8 mm	30 mm	8 mm	Fully Threaded	—	—	90264A806	0000
M6 × 1 mm	18 mm	10 mm	Fully Threaded	—	DIN 6334	93355A330	0000
M8 × 1.25 mm	24 mm	13 mm	Fully Threaded	—	DIN 6334	93355A340	0000
M10 × 1.5 mm	30 mm	17 mm	Fully Threaded	—	DIN 6334	93355A350	0000
M12 × 1.75 mm	36 mm	19 mm	Fully Threaded	—	DIN 6334	93355A360	0000
M14 × 2 mm	42 mm	22 mm	Fully Threaded	—	DIN 6334	93355A370	0000
M16 × 2 mm	48 mm	24 mm	Fully Threaded	—	DIN 6334	93355A380	0000
M18 × 2.5 mm	54 mm	27 mm	Fully Threaded	—	DIN 6334	93355A550	00000
M20 × 2.5 mm	60 mm	30 mm	Fully Threaded	—	DIN 6334	93355A390	0000
M22 × 2.5 mm	66 mm	32 mm	Fully Threaded	—	DIN 6334	93355A560	00000
M24 × 3 mm	72 mm	36 mm	Fully Threaded	—	DIN 6334	93355A410	00000
M27 × 3 mm	81 mm	41 mm	Fully Threaded	—	DIN 6334	93355A570	00000
M30 × 3.5 mm	90 mm	46 mm	Fully Threaded	—	DIN 6334	93355A580	000000
M36 × 4 mm	108 mm	55 mm	Fully Threaded	—	DIN 6334	93355A590	000000

Black-Oxide Steel



		10-24	3/4"	5/16"	Fully Threaded	—	—	91034A411	0000


		1/4"-20	5/8"	1/2"	Fully Threaded	—	—	91034A100	0000
		1/4"-20	7/8"	3/8"	Fully Threaded	—	—	91034A412	0000
		5/16"-18	7/8"	9/16"	Fully Threaded	—	—	91034A105	0000
		5/16"-18	1 1/8"	1/2"	Fully Threaded	—	—	91034A413	0000
		3/8"-16	1"	11/16"	Fully Threaded	—	—	91034A110	0000
		3/8"-16	1 3/4"	5/8"	Fully Threaded	—	—	91034A414	0000
		7/16"-14	1 1/4"	3/4"	Fully Threaded	—	—	91034A115	0000
		7/16"-14	1 3/4"	5/8"	Fully Threaded	—	—	91034A415	0000
		1/2"-13	1 1/4"	7/8"	Fully Threaded	—	—	91034A120	0000
		1/2"-13	1 3/4"	11/16"	Fully Threaded	—	—	91034A416	0000


		5/8"-11	1 5/8"	1 1/16"	Fully Threaded	—	—	91034A125	0000
		5/8"-11	2 1/8"	13/16"	Fully Threaded	—	—	91034A417	0000
		3/4"-10	1 7/8"	1 1/4"	Fully Threaded	—	—	91034A130	0000
		3/4"-10	2 1/4"	1"	Fully Threaded	—	—	91034A418	0000
		7/8"-9	2 1/4"	1 7/16"	Fully Threaded	—	—	91034A135	00000
		7/8"-9	2 1/2"	1 1/4"	Fully Threaded	—	—	91034A419	00000
		1"-8	2 1/2"	1 1/4"	Fully Threaded	—	—	91034A421	00000
		1"-8	2 1/2"	1 5/8"	Fully Threaded	—	—	91034A140	00000
		1 1/4"-7	3"	1 5/8"	Fully Threaded	—	—	91034A422	00000
		1 1/2"-6	4"	2"	Fully Threaded	—	—	91034A423	00000


		M2 × 0.4 mm	6 mm	4.5 mm	Fully Threaded	—	—	93020A101	0000
		M2.5 × 0.45 mm	6 mm	4.5 mm	Fully Threaded	—	—	93020A102	0000
		M3 × 0.5 mm	9 mm	6 mm	Fully Threaded	—	—	93020A103	0000
		M3.5 × 0.6 mm	10 mm	6 mm	Fully Threaded	—	—	93020A104	0000
		M4 × 0.7 mm	12 mm	7 mm	Fully Threaded	—	—	93020A105	0000
		M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	—	—	93020A106	0000
		M6 × 1 mm	16 mm	13 mm	Fully Threaded	—	—	93020A775	0000
		M8 × 1.25 mm	19 mm	14 mm	Fully Threaded	—	—	93020A781	0000
		M10 × 1.5 mm	24 mm	16 mm	Fully Threaded	—	—	93020A782	0000
		M12 × 1.75 mm	32 mm	22 mm	Fully Threaded	—	—	93020A783	0000


		M16 × 2 mm	40 mm	27 mm	Fully Threaded	—	—	93020A786	0000
		M18 × 2.5 mm	54 mm	27 mm	Fully Threaded	—	DIN 6334	93020A107	00000
		M20 × 2.5 mm	51 mm	32 mm	Fully Threaded	—	—	93020A785	00000
		M22 × 2.5 mm	66 mm	32 mm	Fully Threaded	—	DIN 6334	93020A108	00000
		M24 × 3 mm	64 mm	38 mm	Fully Threaded	—	—	93020A791	00000
		M27 × 3 mm	81 mm	41 mm	Fully Threaded	—	DIN 6334	93020A109	00000
		M30 × 3.5 mm	90 mm	46 mm	Fully Threaded	—	DIN 6334	93020A111	00000
		M36 × 4 mm	108 mm	55 mm	Fully Threaded	—	DIN 6334	93020A112	000000


		Hot-Dipped Galvanized Steel



				3/8"-16	1 3/4"	5/8"	Fully Threaded	—	—	93350A100	0000


				7/16"-14	1 3/4"	5/8"	Fully Threaded	—	—	93350A105	0000
				1/2"-13	1 3/4"	11/16"	Fully Threaded	—	—	93350A110	0000
				5/8"-11	2 1/8"	13/16"	Fully Threaded	—	—	93350A115	0000
				3/4"-10	2 1/4"	1"	Fully Threaded	—	—	93350A120	0000
				3/4"-10	3"	1"	Fully Threaded	—	—	93350A125	0000
7/8"-9				2 1/2"	1 1/4"	Fully Threaded	—	—	93350A037	00000
1"-8	2 3/4"			1 3/8"	Fully Threaded	—	—	93350A038	00000
1"-8	3"			1 3/8"	Fully Threaded	—	—	93350A136	00000
1 1/8"-7	3"			1 1/2"	Fully Threaded	—	—	93350A147	00000
1 1/4"-7	3"			1 5/8"	Fully Threaded	—	—	93350A040	00000


Zinc-Flake-Coated Steel



				10-24	3/4"	5/16"	Fully Threaded	—	ASTM B117	93350A551	0000


				1/4"-20	7/8"	3/8"	Fully Threaded	—	ASTM B117	93350A552	0000
				5/16"-18	1 1/8"	1/2"	Fully Threaded	—	ASTM B117	93350A553	0000
				3/8"-16	1 3/4"	5/8"	Fully Threaded	—	ASTM B117	93350A554	0000
				5/8"-11	2 1/8"	13/16"	Fully Threaded	—	ASTM B117	93350A557	00000


				Steel



						1 3/8"-6	8"	2 1/4"	Partially Threaded	3 7/8"	—	90264A704	00000


						1 3/4"-5	8 1/2"	2 3/4"	Partially Threaded	4 1/8"	—	90264A705	000000
						2"-4 1/2	9"	3 1/4"	Partially Threaded	4 3/8"	—	90264A706	000000

Medium-Strength Steel

These Grade 5 or Class 8 nuts are about twice as strong as low-strength steel coupling nuts. Use them with threaded rods that have a comparable 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.

Black-Oxide Steel—A dark, matte coating creates a finished look. Nuts offer minimal corrosion resistance, so they're best for dry environments.

								Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading	Specs. Met		1-9	10-49	50-Up
Zinc-Plated Steel



		8-32	5/8"	1/2"	SAE Grade 5	Fully Threaded	—	90977A013	00000	00000	00000


		10-24	3/4"	1/2"	SAE Grade 5	Fully Threaded	—	90977A017	0000	0000	0000
		10-32	3/4"	1/2"	SAE Grade 5	Fully Threaded	—	90977A021	0000	0000	0000
		1/4"-20	7/8"	1/2"	SAE Grade 5	Fully Threaded	—	90977A130	0000	0000	0000
		1/4"-28	7/8"	1/2"	SAE Grade 5	Fully Threaded	—	90977A140	0000	0000	0000
		5/16"-18	1 1/8"	1/2"	SAE Grade 5	Fully Threaded	—	90977A150	0000	0000	0000
		5/16"-24	1 1/8"	1/2"	SAE Grade 5	Fully Threaded	—	90977A160	0000	0000	0000
		3/8"-16	1 3/4"	5/8"	SAE Grade 5	Fully Threaded	—	90977A165	0000	0000	0000
		3/8"-24	1 3/4"	5/8"	SAE Grade 5	Fully Threaded	—	90977A170	0000	0000	0000
		7/16"-14	1 3/4"	5/8"	SAE Grade 5	Fully Threaded	—	90977A180	0000	0000	0000
		7/16"-20	1 3/4"	5/8"	SAE Grade 5	Fully Threaded	—	90977A190	0000	0000	0000


		1/2"-13	1 3/4"	3/4"	SAE Grade 5	Fully Threaded	—	90977A195	0000	0000	0000
		1/2"-20	1 3/4"	3/4"	SAE Grade 5	Fully Threaded	—	90977A034	0000	0000	0000
		5/8"-11	2 1/8"	13/16"	SAE Grade 5	Fully Threaded	—	90977A205	0000	0000	0000
		5/8"-18	2 1/8"	13/16"	SAE Grade 5	Fully Threaded	—	90977A210	0000	0000	0000
		3/4"-10	2 1/4"	1"	SAE Grade 5	Fully Threaded	—	90977A215	0000	0000	0000
		3/4"-16	2 1/4"	1"	SAE Grade 5	Fully Threaded	—	90977A220	00000	00000	0000
		7/8"-9	2 1/2"	1 1/4"	SAE Grade 5	Fully Threaded	—	90977A037	00000	00000	00000
		7/8"-14	2 1/2"	1 1/4"	SAE Grade 5	Fully Threaded	—	90977A225	00000	00000	00000
		1"-8	2 3/4"	1 3/8"	SAE Grade 5	Fully Threaded	—	90977A038	00000	00000	00000
		1"-14	2 3/4"	1 3/8"	SAE Grade 5	Fully Threaded	—	90977A230	00000	00000	00000


		1 1/8"-7	3"	1 1/2"	SAE Grade 5	Fully Threaded	—	90977A235	00000	00000	00000
		1 1/4"-7	3"	1 5/8"	SAE Grade 5	Fully Threaded	—	90977A240	00000	00000	00000
		1 1/2"-6	3 1/2"	2"	SAE Grade 5	Fully Threaded	—	90977A245	00000	00000	00000
		M4 × 0.7 mm	12 mm	7 mm	Class 8	Fully Threaded	—	90009A229	00000	00000	00000
		M5 × 0.8 mm	15 mm	8 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90009A231	00000	00000	0000
		M6 × 1 mm	18 mm	10 mm	Class 8	Fully Threaded	DIN 6334	90009A221	0000	0000	0000
		M8 × 1.25 mm	24 mm	13 mm	Class 8	Fully Threaded	DIN 6334	90009A222	0000	0000	0000
		M10 × 1.5 mm	30 mm	17 mm	Class 8	Fully Threaded	DIN 6334	90009A223	0000	0000	0000
		M12 × 1.75 mm	36 mm	19 mm	Class 8	Fully Threaded	DIN 6334	90009A224	0000	0000	0000
		M14 × 2 mm	42 mm	22 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90009A232	00000	00000	00000


		M16 × 2 mm	48 mm	24 mm	Class 8	Fully Threaded	DIN 6334	90009A225	0000	0000	0000
		M18 × 2.5 mm	54 mm	27 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90009A233	00000	00000	00000
		M20 × 2.5 mm	60 mm	30 mm	Class 8	Fully Threaded	DIN 6334	90009A226	00000	0000	0000
		M22 × 2.5 mm	66 mm	32 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90009A234	00000	00000	00000
		M24 × 3 mm	72 mm	36 mm	Class 8	Fully Threaded	DIN 6334	90009A227	00000	00000	00000
		M30 × 3.5 mm	90 mm	46 mm	Class 8	Fully Threaded	DIN 6334	90009A228	00000	00000	00000


		Black-Oxide Steel



				M4 × 0.7 mm	12 mm	7 mm	Class 8	Fully Threaded	—	90082A111	00000	0000	0000


				M5 × 0.8 mm	15 mm	8 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A112	00000	00000	0000
				M6 × 1 mm	18 mm	10 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A113	00000	00000	00000
				M8 × 1.25 mm	24 mm	13 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A114	00000	00000	00000
				M10 × 1.5 mm	30 mm	17 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A115	00000	00000	00000
				M12 × 1.75 mm	36 mm	19 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A116	00000	00000	00000
				M14 × 2 mm	42 mm	22 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A117	00000	00000	00000
				M16 × 2 mm	48 mm	24 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A118	00000	00000	00000
M18 × 2.5 mm				54 mm	27 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A119	00000	00000	00000
M20 × 2.5 mm	60 mm			30 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A121	00000	00000	00000
M24 × 3 mm	72 mm			36 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A123	00000	00000	00000


M30 × 3.5 mm	90 mm			46 mm	Class 8	Fully Threaded	ASME B18.2.2, DIN 6334	90082A125	00000	00000	00000


Hot-Dipped Galvanized Steel



				3/4"-10	2 1/4"	1"	SAE Grade 5	Fully Threaded	—	90977A261	00000	00000	00000


				1"-8	2 3/4"	1 3/8"	SAE Grade 5	Fully Threaded	—	90977A262	00000	00000	00000
				1 1/4"-7	3"	1 5/8"	SAE Grade 5	Fully Threaded	—	90977A263	00000	00000	00000

High-Strength Steel

Rated Grade 8 or Class 10, these are about 25% stronger than medium-strength steel coupling nuts. Use them with threaded rods that have a comparable 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.

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

								Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading	Specs. Met		1-9	10-49	50-Up
Zinc-Plated Steel



		1/4"-20	7/8"	1/2"	SAE Grade 8	Fully Threaded	—	90983A205	000000	000000	000000


		1/4"-28	7/8"	1/2"	SAE Grade 8	Fully Threaded	—	90983A261	00000	00000	00000
		5/16"-18	7/8"	1/2"	SAE Grade 8	Fully Threaded	—	90983A206	00000	00000	00000
		5/16"-24	7/8"	1/2"	SAE Grade 8	Fully Threaded	—	90983A207	00000	00000	00000
		3/8"-16	1 3/4"	5/8"	SAE Grade 8	Fully Threaded	—	90983A211	00000	00000	00000
		3/8"-24	1 3/4"	5/8"	SAE Grade 8	Fully Threaded	—	90983A212	00000	00000	00000
		7/16"-14	1 3/4"	3/4"	SAE Grade 8	Fully Threaded	—	90983A213	00000	00000	00000
		7/16"-20	1 3/4"	3/4"	SAE Grade 8	Fully Threaded	—	90983A214	00000	00000	00000
		1/2"-13	1 3/4"	3/4"	SAE Grade 8	Fully Threaded	—	90983A217	00000	00000	00000
		1/2"-20	1 3/4"	3/4"	SAE Grade 8	Fully Threaded	—	90983A218	00000	00000	00000
		5/8"-11	2 1/8"	15/16"	SAE Grade 8	Fully Threaded	—	90983A223	00000	00000	00000


		5/8"-18	2 1/8"	15/16"	SAE Grade 8	Fully Threaded	—	90983A224	00000	00000	00000
		3/4"-10	2 1/4"	1 1/8"	SAE Grade 8	Fully Threaded	—	90983A229	00000	00000	00000
		3/4"-16	2 1/4"	1 1/8"	SAE Grade 8	Fully Threaded	—	90983A230	00000	00000	00000
		7/8"-9	2 1/2"	1 5/16"	SAE Grade 8	Fully Threaded	—	90983A234	00000	00000	00000
		7/8"-14	2 1/2"	1 5/16"	SAE Grade 8	Fully Threaded	—	90983A235	00000	00000	00000
		1"-8	2 3/4"	1 1/2"	SAE Grade 8	Fully Threaded	—	90983A240	00000	00000	00000
		1"-14	2 3/4"	1 1/2"	SAE Grade 8	Fully Threaded	—	90983A241	00000	00000	00000
		1 1/4"-7	3"	1 7/8"	SAE Grade 8	Fully Threaded	—	90983A246	00000	00000	00000
		1 1/4"-12	3"	1 7/8"	SAE Grade 8	Fully Threaded	—	90983A262	00000	00000	00000
		1 1/2"-6	3 1/2"	2 1/4"	SAE Grade 8	Fully Threaded	—	90983A251	00000	00000	00000


		1 1/2"-12	3 1/2"	2 1/4"	SAE Grade 8	Fully Threaded	—	90983A263	000000	00000	00000
		M6 × 1 mm	18 mm	10 mm	Class 10	Fully Threaded	DIN 6334	90331A551	0000	0000	0000
		M8 × 1.25 mm	24 mm	13 mm	Class 10	Fully Threaded	DIN 6334	90331A552	0000	0000	0000
		M10 × 1.5 mm	30 mm	17 mm	Class 10	Fully Threaded	DIN 6334	90331A553	0000	0000	0000
		M12 × 1.75 mm	36 mm	19 mm	Class 10	Fully Threaded	DIN 6334	90331A554	0000	0000	0000
		M16 × 2 mm	48 mm	24 mm	Class 10	Fully Threaded	DIN 6334	90331A556	00000	00000	00000
		M20 × 2.5 mm	60 mm	30 mm	Class 10	Fully Threaded	DIN 6334	90331A557	00000	00000	00000
		M24 × 3 mm	72 mm	36 mm	Class 10	Fully Threaded	DIN 6334	90331A558	00000	00000	00000
		M27 × 3 mm	81 mm	41 mm	Class 10	Fully Threaded	DIN 6334	90331A559	00000	00000	00000
		M30 × 3.5 mm	90 mm	46 mm	Class 10	Fully Threaded	DIN 6334	90331A555	000000	00000	00000


		Steel



				M8 × 1.25 mm	24 mm	13 mm	Class 10	Fully Threaded	DIN 6334	97778A110	0000	0000	0000


				M10 × 1.5 mm	30 mm	17 mm	Class 10	Fully Threaded	DIN 6334	97778A120	0000	0000	0000
				M12 × 1.75 mm	36 mm	19 mm	Class 10	Fully Threaded	DIN 6334	97778A130	0000	0000	0000
				M16 × 2 mm	48 mm	24 mm	Class 10	Fully Threaded	DIN 6334	97778A140	0000	0000	0000
				M20 × 2.5 mm	60 mm	30 mm	Class 10	Fully Threaded	DIN 6334	97778A150	00000	00000	00000
				M24 × 3 mm	72 mm	36 mm	Class 10	Fully Threaded	DIN 6334	97778A160	00000	00000	00000
				M30 × 3.5 mm	90 mm	46 mm	Class 10	Fully Threaded	DIN 6334	97778A170	00000	00000	00000
				M36 × 4 mm	108 mm	55 mm	Class 10	Fully Threaded	DIN 6334	97778A180	000000	000000	00000

Extreme-Strength Steel

Made from Grade 2H steel, these are about 20% stronger than high-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.

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

							Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading		1-9	10-49	50-Up
Steel



		1/4"-20	7/8"	1/2"	ASTM Grade 2H	Fully Threaded	90654A305	000000	000000	000000


		3/8"-16	1 3/4"	11/16"	ASTM Grade 2H	Fully Threaded	90654A311	00000	00000	00000
		1/2"-13	1 3/4"	7/8"	ASTM Grade 2H	Fully Threaded	90654A317	00000	00000	00000
		5/8"-11	2 1/8"	1 1/16"	ASTM Grade 2H	Fully Threaded	90654A323	00000	00000	00000
		3/4"-10	2 1/4"	1 1/4"	ASTM Grade 2H	Fully Threaded	90654A329	00000	00000	00000
		7/8"-9	2 1/2"	1 1/2"	ASTM Grade 2H	Fully Threaded	90654A334	00000	00000	00000
		1"-8	2 3/4"	1 5/8"	ASTM Grade 2H	Fully Threaded	90654A340	00000	00000	00000
		1 1/4"-7	3"	2"	ASTM Grade 2H	Fully Threaded	90654A346	00000	00000	00000
		1 1/2"-6	3 1/2"	2 1/2"	ASTM Grade 2H	Fully Threaded	90654A351	00000	00000	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.

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—The most corrosion-resistant stainless steel coupling nuts we offer, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals.

								Each
	Thread Size	Lg.	Wd.	Threading	Min. Thread Lg.	Specs. Met		1-9	10-49	50-Up
18-8 Stainless Steel



		0-80	1/4"	1/8"	Fully Threaded	—	—	90268A201	00000	00000	00000


		0-80	5/8"	1/4"	Partially Threaded	3/16"	—	90268A411	0000	0000	0000
		0-80	11/16"	1/4"	Partially Threaded	3/16"	—	90268A412	0000	0000	0000
		1-72	5/16"	3/16"	Fully Threaded	—	—	90268A202	0000	0000	0000
		2-56	5/16"	3/16"	Fully Threaded	—	—	90268A203	0000	0000	0000
		2-56	5/8"	1/4"	Partially Threaded	3/16"	—	90268A413	0000	0000	0000
		2-56	11/16"	1/4"	Partially Threaded	3/16"	—	90268A414	0000	0000	0000
		3-48	5/16"	1/4"	Fully Threaded	—	—	90268A204	0000	0000	0000
		4-40	7/16"	5/16"	Fully Threaded	—	—	90268A205	0000	0000	0000
		4-40	1"	5/16"	Fully Threaded	—	—	90268A206	0000	0000	0000
		5-40	7/16"	5/16"	Fully Threaded	—	—	90268A207	0000	0000	0000


		6-32	1/2"	5/16"	Fully Threaded	—	—	90268A208	0000	0000	0000
		6-32	1"	5/16"	Fully Threaded	—	—	90268A209	0000	0000	0000
		8-32	5/8"	3/8"	Fully Threaded	—	—	90268A009	0000	0000	0000
		8-32	1"	3/8"	Fully Threaded	—	—	90268A211	0000	0000	0000
		10-24	3/4"	3/8"	Fully Threaded	—	—	90268A011	0000	0000	0000
		10-24	2"	3/8"	Partially Threaded	1/2"	—	90268A212	0000	0000	0000
		10-32	3/4"	3/8"	Fully Threaded	—	—	90268A320	0000	0000	0000
		10-32	2"	3/8"	Partially Threaded	1/2"	—	90268A213	0000	0000	0000
		12-24	3/4"	3/8"	Fully Threaded	—	—	90268A214	0000	0000	0000
		1/4"-20	7/8"	3/8"	Fully Threaded	—	—	90268A029	0000	0000	0000


		1/4"-20	3"	1/2"	Partially Threaded	5/8"	—	90268A215	00000	00000	00000
		1/4"-20	6"	1/2"	Partially Threaded	5/8"	—	90268A216	00000	00000	00000
		1/4"-28	7/8"	3/8"	Fully Threaded	—	—	90268A325	0000	0000	0000
		1/4"-28	3"	1/2"	Partially Threaded	5/8"	—	90268A415	00000	00000	00000
		1/4"-28	6"	1/2"	Partially Threaded	5/8"	—	90268A416	00000	00000	00000
		5/16"-18	1"	7/16"	Fully Threaded	—	—	90268A030	0000	0000	0000
		5/16"-18	3"	5/8"	Partially Threaded	5/8"	—	90268A217	00000	00000	00000
		5/16"-18	6"	5/8"	Partially Threaded	5/8"	—	90268A218	00000	00000	00000
		5/16"-24	1"	7/16"	Fully Threaded	—	—	90268A330	0000	0000	0000
		5/16"-24	3"	5/8"	Partially Threaded	5/8"	—	90268A417	00000	00000	00000


		5/16"-24	6"	5/8"	Partially Threaded	5/8"	—	90268A418	00000	00000	00000
		3/8"-16	1 1/8"	1/2"	Fully Threaded	—	—	90268A031	0000	0000	0000
		3/8"-16	1 3/4"	5/8"	Fully Threaded	—	—	90268A032	0000	0000	0000
		3/8"-16	4"	5/8"	Partially Threaded	5/8"	—	90268A219	00000	00000	00000
		3/8"-16	6"	5/8"	Partially Threaded	5/8"	—	90268A221	00000	00000	00000
		3/8"-24	1 1/8"	1/2"	Fully Threaded	—	—	90268A335	0000	0000	0000
		3/8"-24	4"	5/8"	Partially Threaded	5/8"	—	90268A419	00000	00000	00000
		3/8"-24	6"	5/8"	Partially Threaded	5/8"	—	90268A421	00000	00000	00000
		7/16"-14	1 1/4"	9/16"	Fully Threaded	—	—	90268A034	0000	0000	0000
		7/16"-14	6"	5/8"	Partially Threaded	5/8"	—	90268A424	00000	00000	00000


		7/16"-20	1 1/4"	9/16"	Fully Threaded	—	—	90268A340	0000	0000	0000
		7/16"-20	4"	5/8"	Partially Threaded	5/8"	—	90268A425	00000	00000	00000
		7/16"-20	6"	5/8"	Partially Threaded	5/8"	—	90268A427	00000	00000	00000
		1/2"-13	1 1/4"	5/8"	Fully Threaded	—	—	90268A033	0000	0000	0000
		1/2"-13	1 3/4"	11/16"	Fully Threaded	—	—	90268A125	0000	0000	0000
		1/2"-13	4"	3/4"	Partially Threaded	5/8"	—	90268A223	00000	00000	00000
		1/2"-13	6"	3/4"	Partially Threaded	5/8"	—	90268A224	00000	00000	00000
		1/2"-20	1 1/4"	5/8"	Fully Threaded	—	—	90268A345	0000	0000	0000
		1/2"-20	4"	3/4"	Partially Threaded	3/4"	—	90268A428	00000	00000	00000
		1/2"-20	5"	3/4"	Partially Threaded	3/4"	—	90268A429	00000	00000	00000

1/2"-20	6"	3/4"	Partially Threaded	3/4"	—	90268A431	00000	00000	00000
9/16"-12	2 1/8"	13/16"	Fully Threaded	—	—	90268A101	00000	00000	00000
9/16"-12	5"	7/8"	Partially Threaded	3/4"	—	90268A433	00000	00000	00000
9/16"-18	2 1/8"	13/16"	Fully Threaded	—	—	90268A102	00000	00000	00000
9/16"-18	4"	7/8"	Partially Threaded	3/4"	—	90268A435	00000	00000	00000
9/16"-18	6"	7/8"	Partially Threaded	3/4"	—	90268A437	00000	00000	00000
5/8"-11	1 3/4"	7/8"	Fully Threaded	—	—	90268A035	0000	0000	0000
5/8"-11	4"	7/8"	Partially Threaded	15/16"	—	90268A438	00000	00000	00000
5/8"-11	5"	7/8"	Partially Threaded	15/16"	—	90268A439	00000	00000	00000
5/8"-11	6"	7/8"	Partially Threaded	15/16"	—	90268A441	00000	00000	00000
5/8"-18	2 1/8"	13/16"	Fully Threaded	—	—	90268A350	00000	00000	0000
5/8"-18	4"	7/8"	Partially Threaded	15/16"	—	90268A442	00000	00000	00000
5/8"-18	5"	7/8"	Partially Threaded	15/16"	—	90268A443	00000	00000	00000
5/8"-18	6"	7/8"	Partially Threaded	15/16"	—	90268A444	00000	00000	00000
3/4"-10	2 1/4"	1"	Fully Threaded	—	—	90268A036	0000	0000	0000
3/4"-10	4"	1 1/8"	Partially Threaded	3/4"	—	90268A445	00000	00000	00000
3/4"-10	5"	1 1/8"	Partially Threaded	3/4"	—	90268A446	00000	00000	00000
3/4"-10	8"	1 1/8"	Partially Threaded	3/4"	—	90268A449	000000	000000	00000
3/4"-16	2 1/4"	1"	Fully Threaded	—	—	90268A355	00000	00000	00000
3/4"-16	4"	1 1/8"	Partially Threaded	3/4"	—	90268A451	00000	00000	00000
3/4"-16	5"	1 1/8"	Partially Threaded	3/4"	—	90268A452	00000	00000	00000
7/8"-9	2 1/2"	1 1/4"	Fully Threaded	—	—	90268A037	00000	00000	00000
1"-8	2 1/2"	1 3/8"	Fully Threaded	—	—	90268A038	00000	00000	00000
1 1/8"-7	3"	1 1/2"	Fully Threaded	—	—	90268A511	00000	00000	00000
1 1/4"-7	3"	1 5/8"	Fully Threaded	—	—	90268A512	00000	00000	00000
1 1/2"-6	3 1/2"	2"	Fully Threaded	—	—	90268A513	00000	00000	00000
1 3/4"-5	5 1/4"	2 3/4"	Fully Threaded	—	—	90268A514	000000	000000	00000
2"-4 1/2	6"	3 1/8"	Fully Threaded	—	—	90268A515	000000	000000	000000
M2 × 0.4 mm	6 mm	4 mm	Fully Threaded	—	—	93590A101	0000	0000	0000
M2.5 × 0.45 mm	6 mm	4 mm	Fully Threaded	—	—	93590A102	0000	0000	0000
M3 × 0.5 mm	9 mm	5 mm	Fully Threaded	—	—	93590A103	0000	0000	0000
M4 × 0.7 mm	12 mm	7 mm	Fully Threaded	—	—	93590A104	0000	0000	0000
M4 × 0.7 mm	24 mm	6 mm	Partially Threaded	11.1 mm	—	90268A454	0000	0000	0000
M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	—	DIN 6334	93590A105	0000	0000	0000
M5 × 0.8 mm	30 mm	8 mm	Partially Threaded	12.7 mm	—	90268A455	00000	00000	0000
M6 × 1 mm	18 mm	10 mm	Fully Threaded	—	DIN 6334	93590A106	0000	0000	0000
M6 × 1 mm	36 mm	10 mm	Partially Threaded	16 mm	—	90268A456	00000	00000	00000
M8 × 1.25 mm	24 mm	13 mm	Fully Threaded	—	DIN 6334	93590A107	0000	0000	0000
M8 × 1.25 mm	48 mm	13 mm	Partially Threaded	16 mm	—	90268A457	00000	00000	00000
M10 × 1.5 mm	30 mm	17 mm	Fully Threaded	—	DIN 6334	93590A108	0000	0000	0000
M10 × 1.5 mm	60 mm	16 mm	Partially Threaded	16 mm	—	90268A458	00000	00000	00000
M12 × 1.75 mm	36 mm	19 mm	Fully Threaded	—	DIN 6334	93590A109	0000	0000	0000
M12 × 1.75 mm	72 mm	19 mm	Partially Threaded	16 mm	—	90268A459	00000	00000	00000
M14 × 2 mm	42 mm	22 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A311	00000	00000	00000
M16 × 2 mm	48 mm	24 mm	Fully Threaded	—	DIN 6334	93590A112	00000	00000	0000
M16 × 2 mm	96 mm	24 mm	Partially Threaded	16 mm	—	90268A462	000000	000000	00000
M18 × 2.5 mm	54 mm	27 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A312	00000	00000	00000
M20 × 2.5 mm	60 mm	30 mm	Fully Threaded	—	DIN 6334	93590A113	00000	00000	00000
M20 × 2.5 mm	120 mm	30 mm	Partially Threaded	20 mm	—	90268A464	000000	000000	000000
M22 × 2.5 mm	66 mm	32 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A313	00000	00000	00000
M22 × 2.5 mm	132 mm	30 mm	Partially Threaded	22 mm	—	90268A465	000000	000000	000000
M24 × 3 mm	72 mm	36 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A314	00000	00000	00000
M24 × 3 mm	144 mm	41 mm	Partially Threaded	24 mm	—	90268A466	000000	000000	000000
M27 × 3 mm	81 mm	41 mm	Fully Threaded	—	—	93590A315	00000	00000	00000
M30 × 3.5 mm	90 mm	46 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A316	00000	00000	00000
M33 × 3.5 mm	99 mm	50 mm	Fully Threaded	—	DIN 6334	93590A336	000000	00000	00000
M36 × 4 mm	108 mm	55 mm	Fully Threaded	—	DIN 6334	93590A337	000000	000000	000000

Black-Oxide 18-8 Stainless Steel



		M2 × 0.4 mm	6 mm	4 mm	Fully Threaded	—	—	93590A317	0000	0000	0000


		M2.5 × 0.45 mm	6 mm	4 mm	Fully Threaded	—	—	93590A318	0000	0000	0000
		M3 × 0.5 mm	9 mm	5 mm	Fully Threaded	—	—	93590A319	0000	0000	0000
		M4 × 0.7 mm	12 mm	7 mm	Fully Threaded	—	—	93590A321	0000	0000	0000
		M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A322	0000	0000	0000
		M6 × 1 mm	18 mm	10 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A323	0000	0000	0000
		M8 × 1.25 mm	24 mm	13 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A324	00000	0000	0000
		M10 × 1.5 mm	30 mm	17 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A325	00000	00000	00000
		M12 × 1.75 mm	36 mm	19 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A326	00000	00000	00000
		M14 × 2 mm	42 mm	22 mm	Fully Threaded	—	ASME B18.2.2, DIN 6334	93590A327	00000	00000	00000


		Highly Corrosion-Resistant 316 Stainless Steel



				0-80	3/8"	1/4"	Fully Threaded	—	—	90104A101	0000	0000	0000


				2-56	3/8"	1/4"	Fully Threaded	—	—	90104A102	0000	0000	0000
				4-40	7/16"	5/16"	Fully Threaded	—	—	90104A103	0000	0000	0000
				6-32	1/2"	5/16"	Fully Threaded	—	—	90104A104	0000	0000	0000
				8-32	5/8"	3/8"	Fully Threaded	—	—	90104A105	0000	0000	0000
				10-24	3/4"	3/8"	Fully Threaded	—	—	90104A106	0000	0000	0000
				10-32	3/4"	3/8"	Fully Threaded	—	—	90104A107	0000	0000	0000
				1/4"-20	7/8"	3/8"	Fully Threaded	—	—	90104A005	0000	0000	0000
				1/4"-28	7/8"	1/2"	Fully Threaded	—	—	90104A006	00000	00000	00000
				5/16"-18	1"	7/16"	Fully Threaded	—	—	90104A007	0000	0000	0000
				5/16"-24	1"	7/16"	Fully Threaded	—	—	90104A108	0000	0000	0000


				3/8"-16	1 1/8"	1/2"	Fully Threaded	—	—	90104A010	0000	0000	0000
				3/8"-16	1 3/4"	1/2"	Partially Threaded	5/8"	—	90104A110	00000	00000	00000
				3/8"-24	1 1/8"	1/2"	Fully Threaded	—	—	90104A012	00000	00000	00000
				7/16"-14	1 1/4"	9/16"	Fully Threaded	—	—	90104A109	0000	0000	0000
				7/16"-20	1 1/4"	9/16"	Fully Threaded	—	—	90104A112	0000	0000	0000
				1/2"-13	1 1/4"	5/8"	Fully Threaded	—	—	90104A015	0000	0000	0000
				1/2"-20	1 1/4"	5/8"	Fully Threaded	—	—	90104A017	00000	00000	00000
				5/8"-11	2 1/8"	13/16"	Fully Threaded	—	—	90104A020	00000	00000	00000
				5/8"-18	2 1/8"	13/16"	Fully Threaded	—	—	90104A113	00000	00000	00000
				3/4"-10	2 1/4"	1"	Fully Threaded	—	—	90104A025	00000	00000	00000


				3/4"-16	2 1/4"	1"	Fully Threaded	—	—	90104A114	00000	00000	00000
				7/8"-9	2 1/2"	1 1/4"	Fully Threaded	—	—	90104A037	00000	00000	00000
				1"-8	2 1/2"	1 3/8"	Fully Threaded	—	—	90104A038	00000	00000	00000
				1 1/8"-7	3"	1 1/2"	Fully Threaded	—	—	90104A045	000000	000000	00000
				1 1/4"-7	3"	1 5/8"	Fully Threaded	—	—	90104A055	000000	000000	00000
				M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	—	DIN 6334	90111A331	0000	0000	0000
				M6 × 1 mm	18 mm	10 mm	Fully Threaded	—	DIN 6334	90111A332	0000	0000	0000
				M8 × 1.25 mm	24 mm	13 mm	Fully Threaded	—	DIN 6334	90111A333	0000	0000	0000
				M10 × 1.5 mm	30 mm	17 mm	Fully Threaded	—	DIN 6334	90111A334	0000	0000	0000
				M12 × 1.75 mm	36 mm	19 mm	Fully Threaded	—	DIN 6334	90111A335	00000	0000	0000


				M14 × 2 mm	42 mm	22 mm	Fully Threaded	—	DIN 6334	90111A341	00000	00000	00000
				M16 × 2 mm	48 mm	24 mm	Fully Threaded	—	DIN 6334	90111A336	00000	00000	00000
				M18 × 2.5 mm	54 mm	27 mm	Fully Threaded	—	DIN 6334	90111A337	00000	00000	00000
				M20 × 2.5 mm	60 mm	30 mm	Fully Threaded	—	DIN 6334	90111A338	00000	00000	00000
M24 × 3 mm				72 mm	36 mm	Fully Threaded	—	DIN 6334	90111A340	00000	00000	00000

Lightweight Aluminum

6061 Aluminum—One-third the weight of steel, these nuts are commonly used in robotics, automation, and other applications that have weight limitations. They're an alternative to stainless steel for rust resistance but are not as strong.

						Each
	Thread Size	Lg.	Wd.	Threading		1-9	10-49	50-Up
6061 Aluminum



		4-40	7/16"	5/16"	Fully Threaded	90012A101	00000	00000	00000


		6-32	1/2"	5/16"	Fully Threaded	90012A102	0000	0000	0000
		8-32	5/8"	3/8"	Fully Threaded	90012A103	0000	0000	0000
		10-24	3/4"	3/8"	Fully Threaded	90012A104	0000	0000	0000
		10-32	3/4"	3/8"	Fully Threaded	90012A105	0000	0000	0000
		1/4"-20	7/8"	3/8"	Fully Threaded	90012A106	0000	0000	0000
		5/16"-18	1"	7/16"	Fully Threaded	90012A107	0000	0000	0000
		3/8"-16	1 1/8"	1/2"	Fully Threaded	90012A108	0000	0000	0000
		1/2"-13	1 1/4"	5/8"	Fully Threaded	90012A109	0000	0000	0000
		5/8"-11	2 1/8"	7/8"	Fully Threaded	90012A100	00000	00000	00000
		3/4"-10	2 1/4"	1"	Fully Threaded	90012A120	00000	00000	00000


		7/8"-9	2 1/2"	1 1/4"	Fully Threaded	90012A130	00000	00000	00000
		1"-8	2 3/4"	1 3/8"	Fully Threaded	90012A140	00000	00000	00000
		M2 × 0.4 mm	6 mm	4.5 mm	Fully Threaded	90012A210	0000	0000	0000
		M3 × 0.5 mm	9 mm	6 mm	Fully Threaded	90012A220	0000	0000	0000
		M4 × 0.7 mm	12 mm	8 mm	Fully Threaded	90012A230	0000	0000	0000
		M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	90012A240	0000	0000	0000
		M6 × 1 mm	18 mm	10 mm	Fully Threaded	90012A250	0000	0000	0000
		M8 × 1.25 mm	24 mm	13 mm	Fully Threaded	90012A260	0000	0000	0000
		M10 × 1.5 mm	30 mm	17.5 mm	Fully Threaded	90012A270	0000	0000	0000
		M12 × 1.75 mm	36 mm	19 mm	Fully Threaded	90012A280	00000	0000	0000

Brass

Brass—With a warm, polished look, these nuts are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. It is also softer than other metals, so it's easier to thread together.

						Each
	Thread Size	Lg.	Wd.	Threading		1-9	10-49	50-Up
Brass



		2-56	5/16"	3/16"	Fully Threaded	90465A311	00000	00000	00000


		3-48	5/16"	1/4"	Fully Threaded	90465A312	0000	0000	0000
		4-40	7/16"	5/16"	Fully Threaded	90465A101	0000	0000	0000
		5-40	7/16"	5/16"	Fully Threaded	90465A313	0000	0000	0000
		6-32	1/2"	5/16"	Fully Threaded	90465A102	0000	0000	0000
		8-32	5/8"	3/8"	Fully Threaded	90465A103	0000	0000	0000
		10-24	3/4"	3/8"	Fully Threaded	90465A104	00000	0000	0000
		10-32	3/4"	3/8"	Fully Threaded	90465A105	00000	0000	0000
		12-24	3/4"	3/8"	Fully Threaded	90465A314	00000	0000	0000
		1/4"-20	7/8"	3/8"	Fully Threaded	90465A210	0000	0000	0000
		1/4"-28	7/8"	3/8"	Fully Threaded	90465A315	00000	0000	0000


		5/16"-18	7/8"	1/2"	Fully Threaded	90465A215	0000	0000	0000
		5/16"-24	7/8"	1/2"	Fully Threaded	90465A316	00000	0000	0000
		3/8"-16	1 1/8"	1/2"	Fully Threaded	90465A220	0000	0000	0000
		3/8"-16	1 3/4"	5/8"	Fully Threaded	90465A222	0000	0000	0000
		3/8"-24	1 1/8"	1/2"	Fully Threaded	90465A317	00000	0000	0000
		3/8"-24	1 3/4"	5/8"	Fully Threaded	90465A318	00000	00000	00000
		7/16"-14	1 1/4"	9/16"	Fully Threaded	90465A319	00000	0000	0000
		7/16"-20	1 1/4"	9/16"	Fully Threaded	90465A320	00000	0000	0000
		1/2"-13	1 1/4"	5/8"	Fully Threaded	90465A225	0000	0000	0000
		1/2"-13	1 3/4"	11/16"	Fully Threaded	90465A228	00000	0000	0000


		1/2"-20	1 1/4"	5/8"	Fully Threaded	90465A321	00000	00000	0000
		9/16"-12	2 1/8"	13/16"	Fully Threaded	90465A323	00000	00000	00000
		9/16"-18	2 1/8"	13/16"	Fully Threaded	90465A324	00000	00000	00000
		5/8"-11	2 1/8"	13/16"	Fully Threaded	90465A230	00000	00000	00000
		5/8"-18	2 1/8"	13/16"	Fully Threaded	90465A325	00000	00000	00000
		3/4"-10	2 1/4"	1"	Fully Threaded	90465A235	00000	00000	00000
		3/4"-16	2 1/4"	1"	Fully Threaded	90465A326	00000	00000	00000
		7/8"-9	2 1/2"	1 1/4"	Fully Threaded	90465A327	00000	00000	00000
		7/8"-14	2 1/2"	1 1/4"	Fully Threaded	90465A328	00000	00000	00000
		1"-8	2 3/4"	1 3/8"	Fully Threaded	90465A245	00000	00000	00000


		1 1/2"-6	3 1/2"	2"	Fully Threaded	90465A333	000000	000000	00000
		M2 × 0.4 mm	6 mm	4 mm	Fully Threaded	90465A411	00000	00000	00000
		M3 × 0.5 mm	9 mm	5 mm	Fully Threaded	90465A413	00000	00000	00000
		M4 × 0.7 mm	12 mm	7 mm	Fully Threaded	90465A414	00000	00000	00000
		M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	90465A415	00000	00000	00000
		M6 × 1 mm	18 mm	10 mm	Fully Threaded	90465A416	00000	00000	00000
		M8 × 1.25 mm	24 mm	13 mm	Fully Threaded	90465A417	00000	00000	00000
		M10 × 1.5 mm	30 mm	17 mm	Fully Threaded	90465A418	00000	00000	00000
		M12 × 1.75 mm	36 mm	19 mm	Fully Threaded	90465A419	00000	00000	00000
		M16 × 2 mm	48 mm	24 mm	Fully Threaded	90465A421	00000	00000	00000


		M20 × 2.5 mm	60 mm	30 mm	Fully Threaded	90465A423	00000	00000	00000
		M24 × 3 mm	72 mm	36 mm	Fully Threaded	90465A425	00000	00000	00000

Plastic

Nylon 6/6—Slippery and abrasion resistant, these nuts thread on smoothly and stand up to daily wear and tear. Nylon will swell and weaken when exposed to moisture, so it's best for dry environments.

						Temp., ° F				Each
	Thread Size	Lg.	Wd.	Threading	Min. Thread Lg.	Min.	Max.	Color		1-9	10-49	50-Up
Nylon 6/6



		2-56	15/32"	3/16"	Fully Threaded	—	Not Rated	250	Off-White	1319N12	00000	00000	00000


		4-40	3/8"	1/4"	Fully Threaded	—	Not Rated	250	Off-White	1319N13	0000	0000	0000
		6-32	1/2"	3/8"	Fully Threaded	—	Not Rated	250	Off-White	1319N14	0000	0000	0000
		8-32	5/8"	3/8"	Fully Threaded	—	Not Rated	250	Off-White	1319N15	0000	0000	0000
		10-32	3/4"	3/8"	Fully Threaded	—	Not Rated	250	Off-White	1319N16	0000	0000	0000
		10-32	1 3/4"	5/8"	Partially Threaded	1/2"	Not Rated	250	Off-White	1319N11	00000	00000	00000
		1/4"-20	1"	1/2"	Fully Threaded	—	Not Rated	250	Off-White	1319N17	0000	0000	0000
		M2 × 0.4 mm	6 mm	4 mm	Fully Threaded	—	-40	250	Off-White	1319N21	0000	0000	0000
		M2.5 × 0.45 mm	6 mm	4.5 mm	Fully Threaded	—	-40	250	Off-White	1319N22	0000	0000	0000
		M3 × 0.5 mm	9 mm	5 mm	Fully Threaded	—	-40	250	Off-White	1319N23	0000	0000	0000
		M3.5 × 0.6 mm	10 mm	10 mm	Fully Threaded	—	-40	250	Off-White	1319N24	0000	0000	0000


		M4 × 0.7 mm	12 mm	8 mm	Fully Threaded	—	-40	250	Off-White	1319N25	0000	0000	0000
		M5 × 0.8 mm	15 mm	8 mm	Fully Threaded	—	-40	250	Off-White	1319N26	0000	0000	0000
		M6 × 1 mm	18 mm	10 mm	Fully Threaded	—	-40	250	Off-White	1319N27	0000	0000	0000

Round Coupling Nuts

Less bulky than hex coupling nuts, these have a smooth, round body that fits in tight spots. Their finished appearance makes them a common choice for decorative applications. Tighten by hand, or use soft-jaw pliers to avoid marring the outside surface. Also known as extension nuts, they are commonly used to connect lengths of threaded rod and join threaded parts.

Steel

Black-Oxide Steel—A dark, matte coating creates a finished look. Nuts offer minimal corrosion resistance, so they're best for dry environments.

							Each
	Thread Size	Lg.	OD	Threading	Specs. Met		1-9	10-Up
Black-Oxide Steel



		8-32	3/4"	19/64"	Fully Threaded	ASTM A276	96177A110	00000	00000


		10-32	3/4"	19/64"	Fully Threaded	ASTM A276	96177A120	0000	0000
		1/4"-20	3/4"	23/64"	Fully Threaded	ASTM A276	96177A130	0000	0000
		1/4"-20	1"	23/64"	Fully Threaded	ASTM A276	96177A150	0000	0000
		1/4"-20	1 1/4"	23/64"	Fully Threaded	ASTM A276	96177A170	0000	0000
		1/4"-28	3/4"	23/64"	Fully Threaded	ASTM A276	96177A140	0000	0000
		1/4"-28	1"	23/64"	Fully Threaded	ASTM A276	96177A160	0000	0000
		1/4"-28	1 1/4"	23/64"	Fully Threaded	ASTM A276	96177A180	0000	0000
		5/16"-18	3/4"	27/64"	Fully Threaded	ASTM A276	96177A190	0000	0000
		5/16"-18	1"	27/64"	Fully Threaded	ASTM A276	96177A220	0000	0000
		5/16"-18	1 1/4"	27/64"	Fully Threaded	ASTM A108	96177A240	00000	0000


		5/16"-18	1 1/2"	27/64"	Fully Threaded	ASTM A108	96177A260	00000	0000
		5/16"-18	2"	27/64"	Fully Threaded	ASTM A108	96177A280	00000	0000
		5/16"-24	3/4"	27/64"	Fully Threaded	ASTM A276	96177A210	00000	0000
		5/16"-24	1"	27/64"	Fully Threaded	ASTM A276	96177A230	00000	0000
		5/16"-24	2"	27/64"	Fully Threaded	ASTM A108	96177A290	00000	00000
		3/8"-16	3/4"	31/64"	Fully Threaded	ASTM A108	96177A310	0000	0000
		3/8"-16	1"	31/64"	Fully Threaded	ASTM A108	96177A330	0000	0000
		3/8"-16	1 1/4"	31/64"	Fully Threaded	ASTM A108	96177A360	00000	0000
		3/8"-16	1 1/2"	31/64"	Fully Threaded	ASTM A108	96177A390	00000	0000
		3/8"-16	2"	31/64"	Fully Threaded	ASTM A108	96177A420	00000	0000


		3/8"-24	3/4"	31/64"	Fully Threaded	ASTM A108	96177A320	00000	0000
		3/8"-24	1"	31/64"	Fully Threaded	ASTM A108	96177A340	00000	0000
		3/8"-24	1 1/4"	31/64"	Fully Threaded	ASTM A108	96177A370	00000	00000
		3/8"-24	1 1/2"	31/64"	Fully Threaded	ASTM A108	96177A410	00000	0000
		3/8"-24	2"	31/64"	Fully Threaded	ASTM A108	96177A430	00000	0000
		1/2"-13	1 1/4"	37/64"	Fully Threaded	ASTM A108	96177A440	0000	0000
		1/2"-13	1 1/2"	37/64"	Fully Threaded	ASTM A108	96177A470	0000	0000
		1/2"-13	2"	37/64"	Fully Threaded	ASTM A108	96177A510	00000	0000
		1/2"-20	1 1/4"	37/64"	Fully Threaded	ASTM A108	96177A450	00000	00000
		1/2"-20	1 1/2"	37/64"	Fully Threaded	ASTM A108	96177A480	00000	00000


		1/2"-20	2"	37/64"	Fully Threaded	ASTM A108	96177A520	00000	00000
		1/2"-28	1 1/4"	37/64"	Fully Threaded	ASTM A108	96177A460	00000	00000
		5/8"-11	1 1/4"	55/64"	Fully Threaded	ASTM A108	96177A530	00000	00000
		5/8"-11	1 1/2"	55/64"	Fully Threaded	ASTM A108	96177A550	00000	00000
		5/8"-11	2"	55/64"	Fully Threaded	ASTM A108	96177A570	00000	00000
		5/8"-18	1 1/4"	55/64"	Fully Threaded	ASTM A108	96177A540	00000	00000
		5/8"-18	1 1/2"	55/64"	Fully Threaded	ASTM A108	96177A560	00000	00000
		5/8"-18	2"	55/64"	Fully Threaded	ASTM A108	96177A580	00000	00000
		3/4"-10	1 1/4"	63/64"	Fully Threaded	ASTM A108	96177A590	00000	00000
		3/4"-10	2"	63/64"	Fully Threaded	ASTM A108	96177A630	00000	00000


		3/4"-16	1 1/4"	63/64"	Fully Threaded	ASTM A108	96177A600	00000	00000
		3/4"-16	1 1/2"	63/64"	Fully Threaded	ASTM A108	96177A620	00000	00000
		3/4"-16	2"	63/64"	Fully Threaded	ASTM A108	96177A640	00000	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.

							Each
	Thread Size	Lg.	OD	Threading	Specs. Met		1-9	10-Up
18-8 Stainless Steel



		8-32	3/4"	19/64"	Fully Threaded	ASTM A582	90202A201	00000	00000


		10-32	3/4"	19/64"	Fully Threaded	ASTM A582	90202A202	0000	0000
		1/4"-20	3/4"	23/64"	Fully Threaded	ASTM A582	90202A203	0000	0000
		1/4"-20	1"	23/64"	Fully Threaded	ASTM A582	90202A205	0000	0000
		1/4"-20	1 1/4"	23/64"	Fully Threaded	ASTM A582	90202A207	0000	0000
		1/4"-28	3/4"	23/64"	Fully Threaded	ASTM A582	90202A204	0000	0000
		1/4"-28	1"	23/64"	Fully Threaded	ASTM A582	90202A206	0000	0000
		1/4"-28	1 1/4"	23/64"	Fully Threaded	ASTM A582	90202A208	0000	0000
		5/16"-18	3/4"	27/64"	Fully Threaded	ASTM A582	90202A209	0000	0000
		5/16"-18	1"	27/64"	Fully Threaded	ASTM A582	90202A212	0000	0000
		5/16"-18	1 1/4"	27/64"	Fully Threaded	ASTM A582	90202A214	00000	0000


		5/16"-18	1 1/2"	27/64"	Fully Threaded	ASTM A582	90202A216	00000	0000
		5/16"-18	2"	27/64"	Fully Threaded	ASTM A582	90202A218	00000	0000
		5/16"-24	3/4"	27/64"	Fully Threaded	ASTM A582	90202A211	00000	00000
		5/16"-24	1 1/4"	27/64"	Fully Threaded	ASTM A582	90202A215	00000	00000
		5/16"-24	1 1/2"	27/64"	Fully Threaded	ASTM A582	90202A217	00000	00000
		5/16"-24	2"	27/64"	Fully Threaded	ASTM A582	90202A219	00000	00000
		3/8"-16	3/4"	31/64"	Fully Threaded	ASTM A582	90202A221	0000	0000
		3/8"-16	1"	31/64"	Fully Threaded	ASTM A582	90202A223	0000	0000
		3/8"-16	1 1/4"	31/64"	Fully Threaded	ASTM A582	90202A226	00000	0000
		3/8"-16	1 1/2"	31/64"	Fully Threaded	ASTM A582	90202A229	00000	0000


		3/8"-16	2"	31/64"	Fully Threaded	ASTM A582	90202A232	00000	0000
		3/8"-24	3/4"	31/64"	Fully Threaded	ASTM A582	90202A222	00000	00000
		3/8"-24	1"	31/64"	Fully Threaded	ASTM A582	90202A224	00000	00000
		3/8"-24	2"	31/64"	Fully Threaded	ASTM A582	90202A233	00000	00000
		3/8"-32	1"	31/64"	Fully Threaded	ASTM A582	90202A225	00000	00000
		1/2"-13	1 1/4"	37/64"	Fully Threaded	ASTM A582	90202A234	0000	0000
		1/2"-13	1 1/2"	37/64"	Fully Threaded	ASTM A582	90202A237	0000	0000
		1/2"-13	2"	37/64"	Fully Threaded	ASTM A582	90202A241	00000	00000
		1/2"-20	1 1/4"	37/64"	Fully Threaded	ASTM A582	90202A235	00000	00000
		1/2"-20	2"	37/64"	Fully Threaded	ASTM A582	90202A242	00000	00000


		5/8"-11	1 1/4"	55/64"	Fully Threaded	ASTM A582	90202A243	00000	00000
		5/8"-11	1 1/2"	55/64"	Fully Threaded	ASTM A582	90202A245	00000	00000
		5/8"-11	2"	55/64"	Fully Threaded	ASTM A582	90202A247	00000	00000
		5/8"-18	1 1/4"	55/64"	Fully Threaded	ASTM A582	90202A244	00000	00000
		3/4"-10	1 1/4"	63/64"	Fully Threaded	ASTM A582	90202A249	00000	00000
		3/4"-10	2"	63/64"	Fully Threaded	ASTM A582	90202A254	00000	00000
		Round Coupling Nut, 18-8 Stainless Steel, 3/4"-10 Thread Size, 2" Long Product Detail QuantityEachIn stock Select a compatible file type: Parasolid
		3/4"-16	2"	63/64"	Fully Threaded	ASTM A582	90202A255	00000	00000
		M4 × 0.7 mm	20 mm	8 mm	Fully Threaded	ASTM A582	90202A101	0000	0000
		M5 × 0.8 mm	20 mm	8 mm	Fully Threaded	ASTM A582	90202A102	0000	0000
		M6 × 1 mm	20 mm	10 mm	Fully Threaded	ASTM A582	90202A103	0000	0000


		M6 × 1 mm	25 mm	10 mm	Fully Threaded	—	90202A441	0000	0000
		M6 × 1 mm	30 mm	10 mm	Fully Threaded	ASTM A582	90202A104	0000	0000
		M8 × 1.25 mm	20 mm	11 mm	Fully Threaded	ASTM A582	90202A105	00000	00000
		M8 × 1.25 mm	25 mm	11 mm	Fully Threaded	—	90202A442	0000	0000
		M8 × 1.25 mm	30 mm	11 mm	Fully Threaded	ASTM A582	90202A106	00000	00000
		M8 × 1.25 mm	40 mm	11 mm	Fully Threaded	ASTM A582	90202A107	00000	00000
		M8 × 1.25 mm	50 mm	11 mm	Fully Threaded	ASTM A582	90202A108	00000	00000
		M10 × 1.5 mm	20 mm	13 mm	Fully Threaded	ASTM A582	90202A109	00000	0000
		M10 × 1.5 mm	30 mm	13 mm	Fully Threaded	—	90202A443	0000	0000
M10 × 1.5 mm		40 mm	13 mm	Fully Threaded	ASTM A582	90202A112	00000	00000
M10 × 1.5 mm	50 mm	13 mm	Fully Threaded	ASTM A582	90202A113	00000	00000
M12 × 1.75 mm	30 mm	15 mm	Fully Threaded	—	90202A444	0000	0000
M12 × 1.75 mm	40 mm	15 mm	Fully Threaded	ASTM A582	90202A114	00000	00000
M12 × 1.75 mm	50 mm	15 mm	Fully Threaded	ASTM A582	90202A115	00000	00000
M14 × 2 mm	30 mm	18 mm	Fully Threaded	ASTM A582	90202A116	00000	00000
M14 × 2 mm	40 mm	18 mm	Fully Threaded	ASTM A582	90202A117	00000	00000
M16 × 2 mm	30 mm	22 mm	Fully Threaded	ASTM A582	90202A118	00000	00000
M16 × 2 mm	40 mm	22 mm	Fully Threaded	—	90202A445	0000	0000
M16 × 2 mm	50 mm	22 mm	Fully Threaded	ASTM A582	90202A119	00000	00000
M20 × 2.5 mm	50 mm	28 mm	Fully Threaded	ASTM A582	90202A123	00000	00000

Highly Corrosion-Resistant 316 Stainless Steel



		8-32	3/4"	19/64"	Fully Threaded	ASTM A582	93282A110	0000	0000


		10-32	3/4"	19/64"	Fully Threaded	ASTM A582	93282A120	0000	0000
		1/4"-20	3/4"	23/64"	Fully Threaded	ASTM A582	93282A130	0000	0000
		1/4"-20	1"	23/64"	Fully Threaded	ASTM A582	93282A150	0000	0000
		1/4"-20	1 1/4"	23/64"	Fully Threaded	ASTM A582	93282A170	0000	0000
		1/4"-28	1"	23/64"	Fully Threaded	ASTM A582	93282A160	00000	0000
		1/4"-28	1 1/4"	23/64"	Fully Threaded	ASTM A582	93282A180	00000	0000
		5/16"-18	3/4"	27/64"	Fully Threaded	ASTM A276	93282A190	00000	00000
		5/16"-18	2"	27/64"	Fully Threaded	ASTM A276	93282A280	00000	00000
		5/16"-24	2"	27/64"	Fully Threaded	ASTM A276	93282A290	00000	00000
		3/8"-16	3/4"	31/64"	Fully Threaded	ASTM A276	93282A310	00000	00000


		3/8"-16	1"	31/64"	Fully Threaded	ASTM A276	93282A330	00000	00000
		3/8"-16	1 1/2"	31/64"	Fully Threaded	ASTM A276	93282A390	00000	00000
		3/8"-16	2"	31/64"	Fully Threaded	ASTM A276	93282A420	00000	00000
		1/2"-13	1 1/4"	37/64"	Fully Threaded	ASTM A276	93282A440	00000	00000
		1/2"-13	1 1/2"	37/64"	Fully Threaded	ASTM A276	93282A470	00000	00000
		1/2"-13	2"	37/64"	Fully Threaded	ASTM A276	93282A510	00000	00000
		5/8"-11	2"	55/64"	Fully Threaded	ASTM A276	93282A570	00000	00000
		5/8"-18	1 1/4"	55/64"	Fully Threaded	ASTM A276	93282A540	00000	00000
		3/4"-10	1 1/4"	63/64"	Fully Threaded	ASTM A276	93282A590	00000	00000
		3/4"-10	2"	63/64"	Fully Threaded	ASTM A276	93282A630	00000	00000


		3/4"-16	1 1/4"	63/64"	Fully Threaded	ASTM A276	93282A600	00000	00000
		3/4"-16	1 1/2"	63/64"	Fully Threaded	ASTM A276	93282A620	00000	00000

Coupling Nuts with Sight Hole

Confirm that threads are fastened to the right depth at a glance. If you see threads through the sight hole, you'll know that they are properly engaged to ensure a strong hold. Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.

Low-Strength Steel

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

								Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading	Sight Hole Dia.		1-9	10-Up
Zinc-Plated Steel



		8-32	5/8"	5/16"	SAE Grade 2	Fully Threaded	1/16"	93525A277	00000	00000


		10-24	3/4"	5/16"	SAE Grade 2	Fully Threaded	5/64"	93525A280	0000	0000
		10-32	3/4"	5/16"	SAE Grade 2	Fully Threaded	5/64"	93525A283	0000	0000
		1/4"-20	3/4"	3/8"	SAE Grade 2	Fully Threaded	3/32"	93525A286	0000	0000
		1/4"-28	3/4"	3/8"	SAE Grade 2	Fully Threaded	3/32"	93525A289	0000	0000
		5/16"-18	15/16"	1/2"	SAE Grade 2	Fully Threaded	3/32"	93525A292	0000	0000
		3/8"-16	1 1/8"	9/16"	SAE Grade 2	Fully Threaded	1/8"	93525A301	0000	0000
		3/8"-24	1 1/8"	9/16"	SAE Grade 2	Fully Threaded	1/8"	93525A298	0000	0000
		1/2"-13	1 1/2"	3/4"	SAE Grade 2	Fully Threaded	3/16"	93525A308	0000	0000
		5/8"-11	1 7/8"	15/16"	SAE Grade 2	Fully Threaded	3/16"	93525A315	0000	0000
		3/4"-10	2 1/4"	1 1/8"	SAE Grade 2	Fully Threaded	3/16"	93525A322	0000	0000


		1"-8	3"	1 1/2"	SAE Grade 2	Fully Threaded	1/4"	93525A329	00000	00000

Left-Hand-Thread Coupling Nuts

Pair with left-hand threaded rods, and turn to the left to tighten. Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.

Low-Strength Steel

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

						Each
	Thread Size	Lg.	Wd.	Threading		1-9	10-Up
Zinc-Plated Steel



		3/8"-16	1 3/4"	5/8"	Fully Threaded	93345A231	00000	00000


		1/2"-13	1 3/4"	11/16"	Fully Threaded	93345A233	0000	0000
		5/8"-11	2 1/8"	13/16"	Fully Threaded	93345A235	0000	0000
		3/4"-10	2 1/4"	1"	Fully Threaded	93345A236	00000	00000
		7/8"-9	2 1/2"	1 1/4"	Fully Threaded	93345A239	00000	00000
		1"-8	2 3/4"	1 3/8"	Fully Threaded	93345A038	00000	00000
		1 1/4"-7	3"	1 5/8"	Fully Threaded	93345A240	00000	00000