Tap-End Studs | McMaster-Carr

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ASME Interference Class 5

Metric Class 6g

Metric Interference Sk6

Unified Standard Class 2A

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DFARS Specialty Metals

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117 Products

Vibration-Resistant Threaded on Both Ends Setup Studs

Also known as tap-end studs, inch setup studs have Class 5 friction-fit threads on one end to resist loosening and Class 2A standard threads on the other end for attaching a nut. Metric setup studs have Class SK6 friction-fit threads on one end to resist loosening and Class 6g standard threads on the other end for attaching a nut. They are ideal for machining applications where vibration can loosen clamps. They withstand sideways forces better than fully threaded studs because they have an unthreaded middle that is stronger than the threaded ends. The unthreaded middle also makes more contact with unthreaded holes, creating better alignment than a fully threaded stud. Remove studs with pliers to reuse them.

Steel

Image of Product. Front orientation. Contains Annotated. Setup Studs. Vibration-Resistant Threaded on Both Ends Setup Studs.

DIN 835—These studs have a tap end length that is double their diameter.

DIN 939—Studs that meet DIN standards meet dimensional and material requirements. Thread Length (B) includes chamfer on DIN 938 and DIN 939 studs.

	Thread
	Lg. (A)	Lg. (B)	Fit (A)	Fit (B)	Lg.	Tensile Strength, psi	Specs. Met		Each
1/4"-20



		1/2"	1/2"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	120,000	—	91563A411	00000


		3/4"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	120,000	—	91563A412	0000
		1"	1"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	120,000	—	91563A413	0000


		5/16"-18



				1/2"	1/2"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	120,000	—	91563A451	0000


				1/2"	1"	ASME Interference Class 5	Unified Standard Class 2A	2"	120,000	—	91563A452	0000
				1/2"	1"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	120,000	—	91563A453	0000
				1/2"	1 1/2"	ASME Interference Class 5	Unified Standard Class 2A	3"	120,000	—	91563A454	0000
				3/4"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	120,000	—	91563A455	0000
				1"	1"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	120,000	—	91563A456	0000
				1 1/8"	1 1/8"	ASME Interference Class 5	Unified Standard Class 2A	3"	120,000	—	91563A457	0000


				3/8"-16



						1/2"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/4"	60,000	—	91563A126	0000


						1/2"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	60,000	—	91563A128	0000
						1/2"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 3/4"	60,000	—	91563A130	0000
						1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	60,000	—	91563A132	0000
						1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	60,000	—	91563A133	0000
						1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	60,000	—	91563A134	0000
						1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 3/4"	60,000	—	91563A135	0000
						1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	3"	60,000	—	91563A136	0000


						7/16"-14



								9/16"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	60,000	—	91563A173	0000


								9/16"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	60,000	—	91563A177	0000
								9/16"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	60,000	—	91563A179	0000
								9/16"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	3"	60,000	—	91563A181	0000


								1/2"-13



										1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	60,000	—	91563A216	0000


										5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	1 3/4"	60,000	—	91563A218	0000
										5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	60,000	—	91563A220	0000
										5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	60,000	—	91563A221	0000
										5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	60,000	—	91563A222	0000
3/4"										7/8"	ASME Interference Class 5	Unified Standard Class 2A	2 3/4"	60,000	—	91563A223	0000
3/4"	7/8"									ASME Interference Class 5	Unified Standard Class 2A	3"	60,000	—	91563A224	0000
3/4"	1"									ASME Interference Class 5	Unified Standard Class 2A	3 1/2"	60,000	—	91563A226	0000
3/4"	1 1/4"									ASME Interference Class 5	Unified Standard Class 2A	4"	60,000	—	91563A228	0000
7/8"	1 1/4"									ASME Interference Class 5	Unified Standard Class 2A	4 1/2"	60,000	—	91563A230	0000
7/8"	1 1/4"									ASME Interference Class 5	Unified Standard Class 2A	5"	60,000	—	91563A232	0000


5/8"-11



		3/4"								7/8"	ASME Interference Class 5	Unified Standard Class 2A	2"	60,000	—	91563A302	0000


		3/4"	7/8"							ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	60,000	—	91563A303	0000
		3/4"	7/8"							ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	60,000	—	91563A304	0000
		7/8"	1"							ASME Interference Class 5	Unified Standard Class 2A	3"	60,000	—	91563A306	0000
		7/8"	1 1/4"							ASME Interference Class 5	Unified Standard Class 2A	4"	60,000	—	91563A310	0000
		7/8"	1 1/2"							ASME Interference Class 5	Unified Standard Class 2A	5"	60,000	—	91563A314	0000
		7/8"	1 1/2"							ASME Interference Class 5	Unified Standard Class 2A	6"	60,000	—	91563A316	0000


		3/4"-10



										7/8"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	60,000	—	91563A345	0000


				7/8"	1"					ASME Interference Class 5	Unified Standard Class 2A	3"	60,000	—	91563A347	0000
				7/8"	1 1/4"					ASME Interference Class 5	Unified Standard Class 2A	3 1/2"	60,000	—	91563A349	0000
				1"	1 1/4"					ASME Interference Class 5	Unified Standard Class 2A	4"	60,000	—	91563A351	0000


				7/8"-9



										1"	1 1/4"	ASME Interference Class 5	Unified Standard Class 2A	3 1/2"	60,000	—	91563A386	0000


										1"	1 1/4"	ASME Interference Class 5	Unified Standard Class 2A	4"	60,000	—	91563A388	0000


						1"-8



										1 1/4"	1 1/2"	ASME Interference Class 5	Unified Standard Class 2A	4"	60,000	—	91563A390	00000


										1 1/4"	2"	ASME Interference Class 5	Unified Standard Class 2A	5"	60,000	—	91563A391	00000


										M4 × 0.7 mm



								5 mm	10 mm			Metric Interference Sk6	Metric Class 6g	20 mm	80,000	—	91059A811	0000


								5 mm	15 mm			Metric Interference Sk6	Metric Class 6g	27 mm	80,000	—	91059A812	0000


								M6 × 1 mm



												5 mm	10 mm	Metric Interference Sk6	Metric Class 6g	20 mm	80,000	—	91059A813	0000


												5 mm	15 mm	Metric Interference Sk6	Metric Class 6g	27 mm	80,000	—	91059A814	0000
8 mm												18 mm	Metric Interference Sk6	Metric Class 6g	35 mm	80,000	—	91059A815	0000
12 mm	18 mm											Metric Interference Sk6	Metric Class 6g	32 mm	70,000	DIN 835	91059A816	0000


M8 × 1.25 mm



												8 mm	18 mm	Metric Interference Sk6	Metric Class 6g	35 mm	120,000	DIN 939	91059A510	0000


												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	45 mm	120,000	DIN 939	91059A515	0000
												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	60 mm	120,000	DIN 939	91059A520	0000
												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	70 mm	120,000	DIN 939	91059A525	0000
												16 mm	22 mm	Metric Interference Sk6	Metric Class 6g	36 mm	70,000	DIN 835	91059A535	0000
												16 mm	22 mm	Metric Interference Sk6	Metric Class 6g	41 mm	70,000	DIN 835	91059A545	0000


		M10 × 1.5 mm



												10 mm	18 mm	Metric Interference Sk6	Metric Class 6g	37 mm	120,000	DIN 939	91059A551	0000


												10 mm	23 mm	Metric Interference Sk6	Metric Class 6g	42 mm	120,000	DIN 939	91059A556	0000
												10 mm	26 mm	Metric Interference Sk6	Metric Class 6g	52 mm	120,000	DIN 939	91059A561	0000
												10 mm	26 mm	Metric Interference Sk6	Metric Class 6g	62 mm	120,000	DIN 939	91059A566	0000
												20 mm	26 mm	Metric Interference Sk6	Metric Class 6g	55 mm	70,000	DIN 835	91059A571	0000


				M12 × 1.75 mm



												12 mm	17 mm	Metric Interference Sk6	Metric Class 6g	40 mm	120,000	DIN 939	91059A605	0000


												12 mm	27 mm	Metric Interference Sk6	Metric Class 6g	50 mm	120,000	DIN 939	91059A610	0000
												12 mm	30 mm	Metric Interference Sk6	Metric Class 6g	60 mm	120,000	DIN 939	91059A615	0000
						12 mm						30 mm	Metric Interference Sk6	Metric Class 6g	70 mm	120,000	DIN 939	91059A620	0000
						24 mm	30 mm					Metric Interference Sk6	Metric Class 6g	49 mm	70,000	DIN 835	91059A625	0000
						24 mm	30 mm					Metric Interference Sk6	Metric Class 6g	59 mm	70,000	DIN 835	91059A635	0000

18-8 Stainless Steel

18-8 stainless steel studs have good chemical resistance and resist rusting in humid, damp, and washdown areas. They may be mildly magnetic.

	Thread
	Lg. (A)	Lg. (B)	Fit (A)	Fit (B)	Lg.	Tensile Strength, psi		Each
1/4"-20



		3/8"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	80,000	92386A221	00000


		3/8"	1"	ASME Interference Class 5	Unified Standard Class 2A	2"	80,000	92386A222	0000
		3/8"	1"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	80,000	92386A223	0000


		3/8"-16



				1/2"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/4"	80,000	92386A626	0000


				1/2"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	80,000	92386A628	0000
				1/2"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 3/4"	80,000	92386A630	0000
				1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	80,000	92386A632	0000
				1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	80,000	92386A633	0000
				1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	80,000	92386A634	0000
				1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	3"	80,000	92386A636	0000


				7/16"-14



						9/16"	5/8"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	80,000	92386A673	0000


						9/16"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	80,000	92386A677	0000
						9/16"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	80,000	92386A678	0000
						9/16"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	80,000	92386A679	0000
						9/16"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	3"	80,000	92386A681	0000


						1/2"-13



								1/2"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	1 1/2"	80,000	92386A716	0000


								5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	1 3/4"	80,000	92386A718	0000
								5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2"	80,000	92386A720	0000
								5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	80,000	92386A721	0000
								5/8"	3/4"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	80,000	92386A722	0000
								3/4"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	3"	80,000	92386A724	0000
								3/4"	1 1/4"	ASME Interference Class 5	Unified Standard Class 2A	4"	80,000	92386A728	00000
								7/8"	1 1/4"	ASME Interference Class 5	Unified Standard Class 2A	5"	80,000	92386A732	00000


								5/8"-11



										3/4"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	2"	80,000	92386A802	00000


										3/4"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	2 1/4"	80,000	92386A803	00000
										3/4"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	80,000	92386A804	00000
										7/8"	1"	ASME Interference Class 5	Unified Standard Class 2A	3"	80,000	92386A806	00000


3/4"-10



										7/8"	7/8"	ASME Interference Class 5	Unified Standard Class 2A	2 1/2"	80,000	92386A845	00000


										7/8"	1"	ASME Interference Class 5	Unified Standard Class 2A	3"	80,000	92386A847	00000


		M4 × 0.7 mm



										5 mm	10 mm	Metric Interference Sk6	Metric Class 6g	20 mm	80,000	92386A911	0000


										5 mm	15 mm	Metric Interference Sk6	Metric Class 6g	27 mm	80,000	92386A912	0000


										M6 × 1 mm



												5 mm	10 mm	Metric Interference Sk6	Metric Class 6g	20 mm	80,000	92386A913	0000


				8 mm	18 mm							Metric Interference Sk6	Metric Class 6g	27 mm	80,000	92386A914	0000
				8 mm	18 mm							Metric Interference Sk6	Metric Class 6g	35 mm	80,000	92386A915	0000


				M8 × 1.25 mm



												8 mm	18 mm	Metric Interference Sk6	Metric Class 6g	35 mm	80,000	92386A916	0000


												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	45 mm	80,000	92386A917	0000
												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	60 mm	80,000	92386A918	0000
						8 mm						22 mm	Metric Interference Sk6	Metric Class 6g	70 mm	80,000	92386A919	0000


						M10 × 1.5 mm



												8 mm	18 mm	Metric Interference Sk6	Metric Class 6g	37 mm	80,000	92386A921	0000


												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	42 mm	80,000	92386A922	0000
												8 mm	22 mm	Metric Interference Sk6	Metric Class 6g	52 mm	80,000	92386A923	0000
												10 mm	26 mm	Metric Interference Sk6	Metric Class 6g	62 mm	80,000	92386A924	0000


												M12 × 1.75 mm



									12 mm				17 mm	Metric Interference Sk6	Metric Class 6g	40 mm	80,000	92386A925	0000


									12 mm				27 mm	Metric Interference Sk6	Metric Class 6g	50 mm	80,000	92386A926	0000
									12 mm				30 mm	Metric Interference Sk6	Metric Class 6g	60 mm	80,000	92386A927	0000
									12 mm				30 mm	Metric Interference Sk6	Metric Class 6g	70 mm	80,000	92386A928	0000