Hammer Set Cotter Pins | McMaster-Carr

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104 Products

Hammer-Set Cotter Pins

Unlike standard cotter pins, you only need access to one side of these pins to install. They’re often used where obstructions make it difficult to reach around a clevis pin or locknut to secure it. Strike the head to drive them through a hole and force the prongs apart. Once installed, these pins are permanently bent and can’t be reused.

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.

			Small Pack			Large Pack
	Lg.	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Zinc-Plated Carbon Steel







				1/16" Diameter

				1/2"	ASME B18.8.1	100	90260A101	00000	1,000	90260A161	000000


				3/4"	ASME B18.8.1	100	90260A102	0000	1,000	90260A162	00000
				1"	ASME B18.8.1	100	90260A103	0000	1,000	90260A163	00000
				1 1/4"	ASME B18.8.1	100	90260A104	0000	1,000	90260A164	00000
				1 1/2"	ASME B18.8.1	100	90260A105	0000	1,000	90260A165	00000
				2"	ASME B18.8.1	100	90260A106	0000	1,000	90260A166	00000




						3/32" Diameter

						3/4"	ASME B18.8.1	100	90260A107	0000	1,000	90260A167	00000


						1"	ASME B18.8.1	100	90260A108	0000	1,000	90260A168	00000
						1 1/4"	ASME B18.8.1	100	90260A109	0000	1,000	90260A169	00000
						1 1/2"	ASME B18.8.1	100	90260A111	0000	1,000	90260A171	00000
						2"	ASME B18.8.1	100	90260A112	0000	1,000	90260A172	00000




								7/64" Diameter

								3/4"	ASME B18.8.1	100	90260A113	0000	500	90260A173	00000


								1"	ASME B18.8.1	100	90260A114	0000	500	90260A174	00000
								1 1/2"	ASME B18.8.1	100	90260A115	0000	500	90260A175	00000
								2"	ASME B18.8.1	100	90260A116	0000	500	90260A176	00000




										1/8" Diameter

										3/4"	ASME B18.8.1	100	90260A117	0000	1,000	90260A177	00000


										1"	ASME B18.8.1	100	90260A118	0000	1,000	90260A178	00000
										1 1/4"	ASME B18.8.1	100	90260A119	0000	1,000	90260A179	00000
										1 1/2"	ASME B18.8.1	100	90260A121	0000	1,000	90260A181	00000
										1 3/4"	ASME B18.8.1	100	90260A122	0000	500	90260A182	00000
										2"	ASME B18.8.1	100	90260A123	0000	500	90260A183	00000
										2 1/2"	ASME B18.8.1	100	90260A124	0000	500	90260A184	00000
										3"	ASME B18.8.1	100	90260A125	00000	500	90260A185	00000




												5/32" Diameter

1"												ASME B18.8.1	100	90260A126	0000	1,000	90260A186	00000


1 1/4"	ASME B18.8.1											100	90260A127	0000	500	90260A187	00000
1 1/2"	ASME B18.8.1											100	90260A128	0000	500	90260A188	00000
1 3/4"	ASME B18.8.1	50										90260A129	0000	250	90260A189	00000
2"	ASME B18.8.1	50	90260A131									0000	250	90260A191	00000
2 1/2"	ASME B18.8.1	50	90260A132									0000	250	90260A192	00000
3"	ASME B18.8.1	50	90260A133									0000	250	90260A193	00000




		3/16" Diameter

		1"	ASME B18.8.1									100	90260A134	00000	500	90260A194	00000


		1 1/4"	ASME B18.8.1									100	90260A135	00000	500	90260A195	00000
		1 1/2"	ASME B18.8.1									50	90260A136	0000	250	90260A196	00000
		1 3/4"	ASME B18.8.1	50								90260A137	0000	250	90260A197	00000
		2"	ASME B18.8.1	50	90260A138							0000	250	90260A198	00000
		2 1/2"	ASME B18.8.1	50	90260A139							0000	250	90260A199	00000
		3"	ASME B18.8.1	50	90260A141							0000	250	90260A201	00000
		4"	ASME B18.8.1	50	90260A142							00000	—	———	0




				1/4" Diameter

				1 1/2"	ASME B18.8.1							50	90260A143	0000	250	90260A202	00000


				2"	ASME B18.8.1	50						90260A144	00000	250	90260A203	00000
				2 1/2"	ASME B18.8.1	50	90260A145					00000	125	90260A204	00000
				3"	ASME B18.8.1	50	90260A146					00000	125	90260A205	00000
				3 1/2"	ASME B18.8.1	50	90260A147					00000	—	———	0
				4"	ASME B18.8.1	50	90260A148					00000	—	———	0




						5/16" Diameter

						2"	ASME B18.8.1					50	90260A149	00000	250	90260A206	00000


						2 1/2"	ASME B18.8.1	50	90260A151			00000	—	———	0
						3"	ASME B18.8.1	50	90260A152			00000	—	———	0
						4"	ASME B18.8.1	25	90260A153			00000	—	———	0




								3/8" Diameter

								2"	ASME B18.8.1			25	90260A154	00000	100	90260A207	00000


								2 1/2"	ASME B18.8.1			25	90260A155	00000	100	90260A208	00000
								3"	ASME B18.8.1			10	90260A156	0000	50	90260A209	00000
								3 1/2"	ASME B18.8.1			10	90260A157	0000	50	90260A211	00000
								4"	ASME B18.8.1			10	90260A158	0000	50	90260A212	00000

Strong-Hold Hammer-Set Cotter Pins

Even under extreme stress and vibration, these heavy duty pins won’t work their way out of a hole. The wedge-lock design withstands the most demanding applications, including securing railcar wheels. You only need access to one end of the pin to install. Slide into a hole and then hit the head with a hammer to wedge the prongs open. Once installed, these pins are permanently bent and can’t be reused.

Steel

Carbon Steel—Stronger than stainless steel, these pins won't deform from stress and vibration. They perform best in dry environments since moisture will cause them to rust.

		Pkg.
Carbon Steel







	5/16" Diameter

	2"	ASME B18.8.1	10	90700A101	000000


	2 1/2"	ASME B18.8.1	10	90700A102	00000
	3"	ASME B18.8.1	10	90700A103	00000
	3 1/2"	ASME B18.8.1	10	90700A104	00000