316 Stainless Steel Cotter Pins

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Cotter Pins

Lock the ends of clevis pins and shafts to keep components in place. Slide these cotter pins into a hole and then bend the prongs outward with pliers to secure. Also known as split pins, one prong is slightly longer than the other for easy opening once inserted. Repeated bending will weaken the pin, so they should not be reused.

Corrosion-Resistant Stainless Steel

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these pins won't degrade when exposed to harsh weather, salt water, and most chemicals. They're strong enough to join most components but won't withstand extreme stress and vibration as well as steel.

	Lg.	Specs. Met	Pkg. Qty.		Pkg.
Highly Corrosion-Resistant 316 Stainless Steel







				1/16" Diameter

				1/2"	ASME B18.8.1	100	98355A010	000000


				3/4"	ASME B18.8.1	100	98355A020	00000
				1"	ASME B18.8.1	100	98355A030	00000
				1 1/4"	ASME B18.8.1	100	98355A040	00000
				1 1/2"	ASME B18.8.1	50	98355A050	00000




						3/32" Diameter

						1/2"	ASME B18.8.1	100	98355A060	00000


						3/4"	ASME B18.8.1	50	98355A070	00000
						1"	ASME B18.8.1	50	98355A080	00000
						1 1/4"	ASME B18.8.1	50	98355A085	00000
						1 1/2"	ASME B18.8.1	50	98355A090	00000
						1 3/4"	ASME B18.8.1	25	98355A110	00000
						2"	ASME B18.8.1	25	98355A120	00000




								1/8" Diameter

								1/2"	ASME B18.8.1	50	98355A128	00000


								3/4"	ASME B18.8.1	50	98355A130	00000
								7/8"	ASME B18.8.1	50	98355A135	00000
								1"	ASME B18.8.1	50	98355A140	00000
								1 1/8"	ASME B18.8.1	25	98355A143	00000
								1 1/4"	ASME B18.8.1	25	98355A145	00000
								1 3/8"	ASME B18.8.1	25	98355A147	00000
								1 1/2"	ASME B18.8.1	25	98355A150	00000
								1 3/4"	ASME B18.8.1	25	98355A160	00000
								2"	ASME B18.8.1	25	98355A170	00000
								2 1/2"	ASME B18.8.1	10	98355A173	00000


								3"	ASME B18.8.1	10	98355A176	00000




										5/32" Diameter

										3/4"	ASME B18.8.1	25	98355A178	00000


										1"	ASME B18.8.1	25	98355A180	00000
										1 1/4"	ASME B18.8.1	25	98355A185	00000
1 1/2"										ASME B18.8.1	25	98355A190	00000
1 3/4"	ASME B18.8.1									10	98355A200	00000
2"	ASME B18.8.1									10	98355A210	00000
2 1/4"	ASME B18.8.1									10	98355A215	00000
2 1/2"	ASME B18.8.1									10	98355A220	00000
3"	ASME B18.8.1	10								98355A224	00000




		3/16" Diameter

		1"	ASME B18.8.1							10	98355A230	00000


		1 1/4"	ASME B18.8.1							10	98355A235	00000
		1 1/2"	ASME B18.8.1							10	98355A240	00000
		1 3/4"	ASME B18.8.1							10	98355A245	00000
		2"	ASME B18.8.1							10	98355A250	00000
		2 1/2"	ASME B18.8.1	10						98355A260	00000
		3"	ASME B18.8.1	10	98355A270					00000
		4"	ASME B18.8.1	10	98355A285					00000




				1/4" Diameter

				1 1/2"	ASME B18.8.1					10	98355A290	00000


				2"	ASME B18.8.1					5	98355A300	00000
				2 1/2"	ASME B18.8.1					5	98355A310	00000
				3"	ASME B18.8.1					5	98355A320	00000
				3 1/2"	ASME B18.8.1					1	98355A330	0000
				4"	ASME B18.8.1	1	98355A340			0000




						5/16" Diameter

						1 1/2"	ASME B18.8.1			5	98355A350	00000


						2"	ASME B18.8.1			5	98355A360	00000
						2 1/2"	ASME B18.8.1			1	98355A370	0000
						3"	ASME B18.8.1			1	98355A380	0000
						3 1/2"	ASME B18.8.1			2	98355A390	00000
						4"	ASME B18.8.1			2	98355A400	00000
						5"	ASME B18.8.1			2	98355A405	00000




										3/8" Diameter

								2 1/2"	ASME B18.8.1	2	98355A530	00000


								3"	ASME B18.8.1	2	98355A540	00000
								3 1/2"	ASME B18.8.1	1	98355A550	00000
								4"	ASME B18.8.1	2	98355A560	00000
								5"	ASME B18.8.1	2	98355A570	00000

Hairpin Cotter Pins

Secure components more quickly than standard cotter pins. One prong is already bent, so just push into a hole for installation in one step. Although hairpins are reusable, they don’t withstand vibration as well as standard and hammer-set cotter pins. Also known as hitch pin clips and R-clips.

Corrosion-Resistant Stainless Steel

	Wire Dia.	Eye Dia.	Lg.	Specs. Met	Pkg. Qty.		Pkg.
Highly Corrosion-Resistant 316 Stainless Steel



	1/16" to 1/8"	3/64"	1/8"	7/16"	—	25	92375A001	00000


	7/64" to 9/64"	1/32"	1/8"	7/16"	—	25	92375A002	0000
	1/8" to 5/32"	1/32"	1/8"	9/16"	—	25	92375A610	00000
	1/8" to 3/16"	3/64"	1/8"	9/16"	—	25	92375A004	00000
	3/16" to 1/4"	3/64"	1/4"	1"	—	25	92375A005	00000
	1/4" to 3/8"	3/64"	1/4"	1 9/16"	—	25	92375A008	00000
	1/4" to 3/8"	5/64"	1/4"	1 3/16"	—	25	92375A100	00000
	1/4" to 1/2"	1/16"	1/4"	1 5/16"	—	25	92375A152	00000
	1/4" to 1/2"	3/32"	3/8"	1 5/8"	—	25	92375A200	00000
	3/8" to 1/2"	1/16"	3/8"	1 9/16"	—	5	92375A630	00000
	3/8" to 1/2"	5/64"	3/8"	1 9/16"	—	25	92375A300	00000


	3/8" to 5/8"	3/32"	5/8"	2 5/16"	—	25	92375A175	00000
	7/16" to 3/4"	1/8"	1/2"	2 9/16"	—	10	92375A325	00000
	1/2" to 3/4"	3/32"	1/2"	2 1/2"	—	10	92375A338	00000
	1/2" to 3/4"	1/8"	3/8"	1 15/16"	—	10	92375A341	00000
	5/8" to 7/8"	1/8"	5/8"	2 1/2"	—	10	92375A348	00000
	5/8" to 7/8"	3/16"	5/8"	2 1/2"	—	1	92375A640	0000
	5/8" to 1"	11/64"	7/8"	3 1/4"	—	5	92375A356	00000
	3/4" to 1 1/16"	11/64"	7/8"	3 1/2"	—	1	92375A363	0000
	3/4" to 1 1/8"	9/64"	3/4"	3 5/16"	—	5	92375A367	00000
	7/8" to 1"	11/64"	1"	3 3/4"	—	5	92375A372	00000


	7/8" to 1 1/16"	5/32"	7/8"	2 3/16"	—	1	92375A620	0000
	1 1/8" to 1 1/2"	1/4"	7/8"	4"	—	1	92375A360	00000
	1 1/4" to 1 1/2"	1/4"	1 1/2"	5 1/8"	—	1	92375A393	00000
	9 mm to 14 mm	2 mm	10 mm	48 mm	DIN 11024	1	98350A116	0000
	9 mm to 15 mm	2.5 mm	10 mm	53 mm	DIN 11024	1	98350A117	0000
	10 mm to 16 mm	3 mm	18 mm	70 mm	DIN 11024	1	98350A118	00000
	16 mm to 20 mm	4 mm	20 mm	76 mm	DIN 11024	1	98350A119	00000
	20 mm to 28 mm	5 mm	24 mm	100 mm	DIN 11024	1	98350A411	00000
	28 mm to 40 mm	6 mm	30 mm	125 mm	DIN 11024	1	98350A412	00000

Long-Life Hairpin Cotter Pins

You can use these pins over and over without reducing their hold, and they're quicker to install than standard cotter pins. One prong is already bent, so just push into a hole to secure parts in one step. Although the coil maintains tension, hairpins don’t withstand vibration as well as standard and hammer-set cotter pins. Also known as hitch pin clips and R-clips.

Corrosion-Resistant Stainless Steel

	Wire Dia.	Eye Dia.	Lg.	Pkg. Qty.		Pkg.
Highly Corrosion-Resistant 316 Stainless Steel



	5/16" to 1/2"	5/64"	3/8"	2 1/4"	5	92375A101	000000


	1/2" to 3/4"	1/8"	5/8"	2 7/8"	1	92375A102	0000
	1/2" to 7/8"	5/32"	3/4"	3 1/8"	1	92375A103	0000
	5/8" to 1"	5/32"	7/8"	3 3/4"	1	92375A104	0000
	5/8" to 1"	3/16"	1 1/8"	4 1/8"	1	92375A105	0000
	1" to 1 9/16"	19/64"	1 3/8"	6 3/4"	1	92375A106	00000

Split Rings

Also known as key rings, twist these rings into place to secure clevis pins, connect components, or add a pull handle. They don't have the sharp ends of other cotter pins.

Rings with a length and width are 50% stronger than those with similar ODs and IDs.

316 Stainless Steel—316 stainless steel rings have the best corrosion resistance of our stainless steel split rings, and are as strong as 18-8 stainless steel pins. They may be mildly magnetic.

						Small Pack			Large Pack
	OD	ID	Thk.	Wire Dia.	Wire Type	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
316 Stainless Steel



		9/16"	7/16"	1/8"	3/64"	Full Round	—	———	0	10	90905A651	00000


		11/16"	9/16"	1/8"	1/16"	Full Round	—	———	0	10	90905A652	0000
		13/16"	11/16"	1/8"	1/16"	Full Round	—	———	0	10	90905A653	0000
		15/16"	13/16"	1/8"	1/16"	Full Round	—	———	0	10	90905A654	0000
		1 1/16"	15/16"	1/8"	1/16"	Full Round	1	90905A655	00000	10	90905A673	0000
		1 3/8"	1 3/16"	3/16"	3/32"	Full Round	—	———	0	10	90905A656	00000
		1 5/8"	1 3/8"	3/16"	7/64"	Full Round	—	———	0	10	90905A657	00000
		2 1/8"	1 7/8"	1/4"	1/8"	Full Round	5	90905A658	00000	—	———	0
		2 5/8"	2 3/8"	5/16"	5/32"	Full Round	5	90905A659	00000	—	———	0
		3 1/8"	2 7/8"	5/16"	5/32"	Full Round	1	90905A660	0000	—	———	0

Pliers

		Each
Manual Split Ring Pliers	98215A210	00000
Spring-Assisted Split Ring Pliers	98215A390	00000

Mil. Spec. Hairpin Cotter Pins

Manufactured and tested to meet strict U.S. military specifications for material and construction. These pins secure components more quickly than standard cotter pins. One prong is already bent, so just push the other one into a hole for installation in one step. Although hairpins are reusable, they don’t withstand vibration as well as standard and hammer-set cotter pins. Also known as hitch pin clips and R-clips.

Corrosion-Resistant Stainless Steel

	Wire Dia.	Eye Dia.	Lg.	Mil. Spec.	Pkg. Qty.		Pkg.
Highly Corrosion-Resistant 316 Stainless Steel



	1/8"	1/32"	3/32"	19/32"	AN415-3, Fed. Spec. A-A-55487-3	25	90616A120	000000


	1/4"	1/16"	1/4"	1 1/8"	AN415-4, Fed. Spec. A-A-55487-4	10	90616A130	00000
	5/16"	5/64"	5/16"	1 7/16"	AN415-5, Fed. Spec. A-A-55487-5	5	90616A140	00000
	3/8"	5/64"	3/8"	2 7/32"	AN415-2, Fed. Spec. A-A-55487-2	5	90616A110	00000
	3/8"	3/32"	11/16"	1 7/8"	AN415-6, Fed. Spec. A-A-55487-6	5	90616A150	00000
	5/8"	5/32"	3/4"	2 11/16"	AN415-7, Fed. Spec. A-A-55487-7	1	90616A160	0000