Grade 8 Steel Threaded Studs

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SAE Grade 8

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Fully Threaded

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Steel

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Finish

Thread Direction

Performance

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Coupling Nut Profile

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22 Products

Coupling Nuts

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

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.

							Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading		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