Retaining Ring Head Fasteners

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18-8 Stainless Steel

Carbon Steel

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Retaining Ring Groove

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Minimum Hardness

Rockwell B80

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153 Products

Headless Clevis Pins with Retaining Ring Grooves

Secured with a retaining ring at either end, you can add and remove parts without having to take the pin all the way out. These pins are commonly used with rod ends, hydraulic cylinders, and other pivoting components. In addition to taking up less space than cotter pins, the retaining rings surround the entire pin, so bumps are unlikely to work it loose.

Unlike most cotter pins, which install by hand, you will need retaining ring pliers to insert and remove the included rings.

Steel

Zinc-Plated Carbon Steel—These pins withstand occasional exposure to moisture. However, since friction from moving parts can wear away the finish, they're not ideal for wet environments. While not nearly as corrosion resistant as stainless steel, they are stronger and won’t deform under stress.

	Usable Lg.	Dia. Tolerance	Min. Hardness	Lg.		Each
Zinc-Plated Carbon Steel with Retaining Ring





				3/16" Diameter

				1/2"	-0.002" to 0"	Rockwell B80	3/4"	93890A801	00000
				3/4"	-0.002" to 0"	Rockwell B80	1 1/8"	93890A552	0000
				1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A556	0000
				1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A560	0000
				1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A564	0000
				2"	-0.002" to 0"	Rockwell B80	2 1/4"	93890A802	0000




						1/4" Diameter

						1/2"	-0.002" to 0"	Rockwell B80	7/8"	93890A565	0000
						3/4"	-0.002" to 0"	Rockwell B80	1 1/8"	93890A568	0000
						1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A572	0000
						1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A576	0000
						1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A580	0000
						2"	-0.002" to 0"	Rockwell B80	2 3/8"	93890A582	0000
						3"	-0.002" to 0"	Rockwell B80	3 1/2"	93890A803	0000




								5/16" Diameter

								3/4"	-0.002" to 0"	Rockwell B80	1 1/8"	93890A584	0000
								1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A588	0000
								1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A592	0000
								1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A596	0000




										3/8" Diameter

										3/4"	-0.002" to 0"	Rockwell B80	1 1/4"	93890A598	0000
										1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A600	0000
										1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A604	0000
										1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A608	0000
										1 3/4"	-0.002" to 0"	Rockwell B80	2 1/4"	93890A610	0000
										2"	-0.002" to 0"	Rockwell B80	2 3/8"	93890A612	0000
										2 1/4"	-0.002" to 0"	Rockwell B80	2 3/4"	93890A614	00000
										2 1/2"	-0.002" to 0"	Rockwell B80	2 7/8"	93890A616	0000
										3"	-0.002" to 0"	Rockwell B80	3 3/8"	93890A620	0000




												1/2" Diameter

												1"	-0.002" to 0"	Rockwell B80	1 1/2"	93890A624	0000
												1 1/4"	-0.002" to 0"	Rockwell B80	1 3/4"	93890A628	0000
												1 1/2"	-0.002" to 0"	Rockwell B80	2"	93890A632	0000
												1 3/4"	-0.002" to 0"	Rockwell B80	2 1/4"	93890A622	00000
												2"	-0.002" to 0"	Rockwell B80	2 1/2"	93890A636	0000
												2 1/4"	-0.002" to 0"	Rockwell B80	2 3/4"	93890A630	00000
												2 1/2"	-0.002" to 0"	Rockwell B80	3"	93890A640	0000
2 3/4"												-0.002" to 0"	Rockwell B80	3 1/4"	93890A638	00000
3"	-0.002" to 0"											Rockwell B80	3 1/2"	93890A644	0000
3 1/4"	-0.002" to 0"											Rockwell B80	3 5/8"	93890A804	00000


3 1/2"	-0.002" to 0"	Rockwell B80	4"									93890A646	00000
3 3/4"	-0.002" to 0"	Rockwell B80	4 1/8"									93890A805	00000
4"	-0.002" to 0"	Rockwell B80	4 1/2"									93890A650	00000
4 1/4"	-0.002" to 0"	Rockwell B80	4 5/8"									93890A806	00000
4 3/4"	-0.002" to 0"	Rockwell B80	5 1/8"									93890A807	00000




		3/4" Diameter

		1 1/2"	-0.002" to 0"	Rockwell B80								2 1/4"	93890A808	00000
		1 3/4"	-0.002" to 0"	Rockwell B80	2 1/2"							93890A809	00000
		2"	-0.002" to 0"	Rockwell B80	2 3/4"							93890A675	00000
		2 1/4"	-0.002" to 0"	Rockwell B80	3"							93890A811	00000
		2 1/2"	-0.002" to 0"	Rockwell B80	3 1/4"							93890A679	00000
		2 3/4"	-0.002" to 0"	Rockwell B80	3 1/2"							93890A683	00000
		3"	-0.002" to 0"	Rockwell B80	3 3/4"							93890A687	00000
		3 1/4"	-0.002" to 0"	Rockwell B80	4"							93890A812	00000
		3 1/2"	-0.002" to 0"	Rockwell B80	4 1/4"							93890A691	00000
		3 3/4"	-0.002" to 0"	Rockwell B80	4 1/2"							93890A813	00000


		4 1/4"	-0.002" to 0"	Rockwell B80	5"							93890A814	00000




				3 mm Diameter

				10 mm	-0.050 mm to 0 mm	Rockwell B80	16 mm					93890A701	0000
				16 mm	-0.050 mm to 0 mm	Rockwell B80	22 mm					93890A702	0000
				20 mm	-0.050 mm to 0 mm	Rockwell B80	26 mm					93890A703	0000
				24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm					93890A704	0000




						4 mm Diameter

						10 mm	-0.050 mm to 0 mm	Rockwell B80	16 mm			93890A705	0000
						16 mm	-0.050 mm to 0 mm	Rockwell B80	22 mm			93890A706	0000
						20 mm	-0.050 mm to 0 mm	Rockwell B80	26 mm			93890A707	0000
						24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm			93890A708	0000




								6 mm Diameter

								12 mm	-0.050 mm to 0 mm			Rockwell B80	18 mm	93890A709	0000
								20 mm	-0.050 mm to 0 mm			Rockwell B80	26 mm	93890A711	0000
								24 mm	-0.050 mm to 0 mm	Rockwell B80		30 mm	93890A712	0000
								30 mm	-0.050 mm to 0 mm	Rockwell B80	36 mm	93890A713	00000




										8 mm Diameter

										20 mm	-0.050 mm to 0 mm	Rockwell B80	26 mm	93890A714	00000
										24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm	93890A715	00000
										30 mm	-0.050 mm to 0 mm	Rockwell B80	36 mm	93890A716	00000
										40 mm	-0.050 mm to 0 mm	Rockwell B80	48 mm	93890A717	00000




												10 mm Diameter

												24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm	93890A718	00000
30 mm												-0.050 mm to 0 mm	Rockwell B80	36 mm	93890A719	00000
40 mm	-0.050 mm to 0 mm											Rockwell B80	48 mm	93890A721	00000
50 mm	-0.050 mm to 0 mm											Rockwell B80	60 mm	93890A722	00000




												12 mm Diameter

												27 mm	-0.060 mm to 0 mm	Rockwell B80	37 mm	93890A815	00000
												47 mm	-0.060 mm to 0 mm	Rockwell B80	57 mm	93890A816	00000
												57 mm	-0.060 mm to 0 mm	Rockwell B80	67 mm	93890A817	00000

Corrosion-Resistant Stainless Steel

18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They're strong enough to fasten most components but won't withstand stress and vibration as well as steel.

	Usable Lg.	Dia. Tolerance	Min. Hardness	Lg.		Each
18-8 Stainless Steel with Retaining Ring





				3/16" Diameter

				1/2"	-0.002" to 0"	Rockwell B80	3/4"	93890A818	00000
				3/4"	-0.002" to 0"	Rockwell B80	1 1/8"	93890A101	0000
				1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A105	0000
				1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A109	0000
				1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A114	0000
				2"	-0.002" to 0"	Rockwell B80	2 1/4"	93890A819	0000




						1/4" Diameter

						1/2"	-0.002" to 0"	Rockwell B80	7/8"	93890A116	0000
						3/4"	-0.002" to 0"	Rockwell B80	1 1/8"	93890A118	0000
						1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A121	0000
						1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A125	0000
						1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A129	00000
						2"	-0.002" to 0"	Rockwell B80	2 3/8"	93890A132	00000
						3"	-0.002" to 0"	Rockwell B80	3 1/4"	93890A821	00000




								5/16" Diameter

								3/4"	-0.002" to 0"	Rockwell B80	1 1/8"	93890A134	0000
								1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A138	00000
								1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A141	00000
								1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A145	00000
								2"	-0.002" to 0"	Rockwell B80	2 3/8"	93890A822	00000




										3/8" Diameter

										1/2"	-0.002" to 0"	Rockwell B80	7/8"	93890A823	0000
										3/4"	-0.002" to 0"	Rockwell B80	1 1/4"	93890A147	00000
										1"	-0.002" to 0"	Rockwell B80	1 3/8"	93890A149	00000
										1 1/4"	-0.002" to 0"	Rockwell B80	1 5/8"	93890A154	00000
										1 1/2"	-0.002" to 0"	Rockwell B80	1 7/8"	93890A158	00000
										1 3/4"	-0.002" to 0"	Rockwell B80	2 1/4"	93890A159	00000
										2"	-0.002" to 0"	Rockwell B80	2 3/8"	93890A161	00000
										2 1/4"	-0.002" to 0"	Rockwell B80	2 3/4"	93890A163	00000
										2 1/2"	-0.002" to 0"	Rockwell B80	2 7/8"	93890A165	00000
										3"	-0.002" to 0"	Rockwell B80	3 3/8"	93890A169	00000




												1/2" Diameter

												1"	-0.002" to 0"	Rockwell B80	1 1/2"	93890A174	00000
												1 1/4"	-0.002" to 0"	Rockwell B80	1 3/4"	93890A178	00000
												1 1/2"	-0.002" to 0"	Rockwell B80	2"	93890A182	00000
												1 3/4"	-0.002" to 0"	Rockwell B80	2 1/4"	93890A183	00000
												2"	-0.002" to 0"	Rockwell B80	2 1/2"	93890A185	00000
2 1/4"												-0.002" to 0"	Rockwell B80	2 3/4"	93890A187	00000
2 1/2"	-0.002" to 0"											Rockwell B80	3"	93890A189	00000
2 3/4"	-0.002" to 0"											Rockwell B80	3 1/4"	93890A192	00000
3"	-0.002" to 0"	Rockwell B80										3 1/2"	93890A194	00000
3 1/4"	-0.002" to 0"	Rockwell B80	3 5/8"									93890A824	00000


3 1/2"	-0.002" to 0"	Rockwell B80	4"									93890A196	00000
3 3/4"	-0.002" to 0"	Rockwell B80	4 1/8"									93890A825	00000
4"	-0.002" to 0"	Rockwell B80	4 1/2"									93890A201	00000
4 1/4"	-0.002" to 0"	Rockwell B80	4 5/8"									93890A826	00000
4 3/4"	-0.002" to 0"	Rockwell B80	5 1/8"									93890A827	00000




		5/8" Diameter

		2 1/2"	-0.002" to 0"	Rockwell B80	3"							93890A828	00000
		3"	-0.002" to 0"	Rockwell B80	3 1/2"							93890A829	00000




				3/4" Diameter

				1 1/2"	-0.002" to 0"							Rockwell B80	2 1/4"	93890A831	00000
				1 3/4"	-0.002" to 0"							Rockwell B80	2 1/2"	93890A832	00000
				2"	-0.002" to 0"							Rockwell B80	2 3/4"	93890A224	00000
				2 1/4"	-0.002" to 0"							Rockwell B80	3"	93890A833	00000
				2 1/2"	-0.002" to 0"	Rockwell B80						3 1/4"	93890A228	00000
				2 3/4"	-0.002" to 0"	Rockwell B80	3 1/2"					93890A232	00000
				3"	-0.002" to 0"	Rockwell B80	3 3/4"					93890A236	00000
				3 1/4"	-0.002" to 0"	Rockwell B80	4"					93890A834	00000
				3 1/2"	-0.002" to 0"	Rockwell B80	4 1/4"					93890A240	00000
				3 3/4"	-0.002" to 0"	Rockwell B80	4 1/2"					93890A835	00000


				4 1/4"	-0.002" to 0"	Rockwell B80	5"					93890A836	00000




						3 mm Diameter

						10 mm	-0.050 mm to 0 mm	Rockwell B80	16 mm			93890A723	0000
						16 mm	-0.050 mm to 0 mm	Rockwell B80	22 mm			93890A724	0000
						20 mm	-0.050 mm to 0 mm	Rockwell B80	26 mm			93890A725	0000
						24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm			93890A726	00000




								4 mm Diameter

								10 mm	-0.050 mm to 0 mm			Rockwell B80	16 mm	93890A727	0000
								16 mm	-0.050 mm to 0 mm			Rockwell B80	22 mm	93890A728	0000
								20 mm	-0.050 mm to 0 mm			Rockwell B80	26 mm	93890A729	00000
								24 mm	-0.050 mm to 0 mm			Rockwell B80	30 mm	93890A731	00000




										6 mm Diameter

										12 mm	-0.050 mm to 0 mm	Rockwell B80	18 mm	93890A732	00000
										20 mm	-0.050 mm to 0 mm	Rockwell B80	26 mm	93890A733	00000
										24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm	93890A734	00000
										30 mm	-0.050 mm to 0 mm	Rockwell B80	36 mm	93890A735	00000




												8 mm Diameter

												20 mm	-0.050 mm to 0 mm	Rockwell B80	26 mm	93890A736	00000
												24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm	93890A737	00000
												30 mm	-0.050 mm to 0 mm	Rockwell B80	36 mm	93890A738	00000
40 mm												-0.050 mm to 0 mm	Rockwell B80	48 mm	93890A739	00000




												10 mm Diameter

												24 mm	-0.050 mm to 0 mm	Rockwell B80	30 mm	93890A741	00000
		30 mm										-0.050 mm to 0 mm	Rockwell B80	36 mm	93890A742	00000
		40 mm	-0.050 mm to 0 mm									Rockwell B80	48 mm	93890A743	00000
		50 mm	-0.050 mm to 0 mm									Rockwell B80	60 mm	93890A744	00000




												12 mm Diameter

												32 mm	-0.060 mm to 0 mm	Rockwell B80	42 mm	93890A837	00000
												37 mm	-0.060 mm to 0 mm	Rockwell B80	47 mm	93890A838	00000