1" Clevis Pins | McMaster-Carr

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Cotter Pin Included

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Minimum Hardness

For Maximum Cotter Pin Diameter

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Steel Grade

1018 Low-Carbon Steel

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EAR99

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92 Products

Clevis Pins

The most commonly used clevis pins—just slide a cotter pin into the hole to secure parts. These pins have a flat, low-profile head to fit in tight spaces. They're less likely to get in the way than pins with a loop grip or T-handle but aren’t as easy to grab if you want to remove them frequently. Add your own cotter pin, or choose a clevis pin that includes a reusable hairpin cotter.

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.

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.

Zinc-Yellow-Chromate-Plated Carbon Steel—With a more durable finish than clear zinc plating, these pins hold up in wet and outdoor environments although not as well as stainless steel. Because the plating resists wear and the steel holds up under stress, they're good for pivoting parts, like rod end linkages.

						Head
	Usable Lg.	Dia. Tolerance	For Max. Cotter Pin Dia.	Min. Hardness	Lg.	Dia.	Ht.	Pkg. Qty.		Pkg.
Carbon Steel







				1" Diameter

				1 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2"	1 3/16"	11/32"	1	000000000	00000


				1 15/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 1/4"	1 3/16"	11/32"	1	000000000	0000
				2 3/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 1/2"	1 3/16"	11/32"	1	000000000	0000
				2 7/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 3/4"	1 3/16"	11/32"	1	000000000	0000
				2 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	3"	1 3/16"	11/32"	1	000000000	0000
				2 15/16"	-0.009" to -0.004"	3/16"	Rockwell B63	3 1/4"	1 3/16"	11/32"	1	000000000	0000
				3 3/16"	-0.009" to -0.004"	3/16"	Rockwell B63	3 1/2"	1 3/16"	11/32"	1	000000000	0000
				3 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	4"	1 3/16"	11/32"	1	000000000	00000
				4 3/16"	-0.009" to -0.004"	3/16"	Rockwell B63	4 1/2"	1 3/16"	11/32"	1	000000000	00000
				4 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	5"	1 3/16"	11/32"	1	000000000	00000
				5 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	6"	1 3/16"	11/32"	1	000000000	00000


				6 3/16"	-0.009" to -0.004"	3/16"	Rockwell B63	6 1/2"	1 3/16"	11/32"	1	000000000	00000
				6 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	7"	1 3/16"	11/32"	1	000000000	00000
				7 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	8"	1 3/16"	11/32"	1	000000000	00000
				8 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	9"	1 3/16"	11/32"	1	000000000	00000


				Carbon Steel with Cotter Pin







								1" Diameter

								2 3/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 1/2"	1 3/16"	11/32"	1	000000000	00000


								2 7/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 3/4"	1 3/16"	11/32"	1	000000000	00000
								2 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	3"	1 3/16"	11/32"	1	000000000	00000
								2 15/16"	-0.009" to -0.004"	3/16"	Rockwell B63	3 1/4"	1 3/16"	11/32"	1	000000000	00000


								Zinc-Plated Carbon Steel







												1" Diameter

												1 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2"	1 3/16"	11/32"	1	000000000	0000


												1 15/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 1/4"	1 3/16"	11/32"	1	000000000	0000
												2 3/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 1/2"	1 3/16"	11/32"	1	000000000	0000
												2 7/16"	-0.009" to -0.004"	3/16"	Rockwell B63	2 3/4"	1 3/16"	11/32"	1	000000000	0000
2 11/16"												-0.009" to -0.004"	3/16"	Rockwell B63	3"	1 3/16"	11/32"	1	000000000	0000
2 15/16"	-0.009" to -0.004"											3/16"	Rockwell B63	3 1/4"	1 3/16"	11/32"	1	000000000	0000
3 3/16"	-0.009" to -0.004"											3/16"	Rockwell B63	3 1/2"	1 3/16"	11/32"	1	000000000	00000
3 11/16"	-0.009" to -0.004"											3/16"	Rockwell B63	4"	1 3/16"	11/32"	1	000000000	00000
4 3/16"	-0.009" to -0.004"											3/16"	Rockwell B63	4 1/2"	1 3/16"	11/32"	1	000000000	00000
5 11/16"	-0.009" to -0.004"	3/16"										Rockwell B63	6"	1 3/16"	11/32"	1	000000000	00000
6 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63									7"	1 3/16"	11/32"	1	000000000	00000


7 11/16"	-0.009" to -0.004"	3/16"	Rockwell B63									8"	1 3/16"	11/32"	1	000000000	00000


Zinc-Yellow-Chromate-Plated Carbon Steel







												1" Diameter

												1 15/16"	-0.009" to -0.004"	13/64"	Rockwell B63	2 1/4"	1 3/16"	11/32"	1	000000000	0000


												2 3/16"	-0.009" to -0.004"	13/64"	Rockwell B63	2 1/2"	1 3/16"	11/32"	1	000000000	0000
												2 7/16"	-0.009" to -0.004"	13/64"	Rockwell B63	2 3/4"	1 3/16"	11/32"	1	000000000	0000
												2 11/16"	-0.009" to -0.004"	13/64"	Rockwell B63	3"	1 3/16"	11/32"	1	000000000	0000
												2 15/16"	-0.009" to -0.004"	13/64"	Rockwell B63	3 1/4"	1 3/16"	11/32"	1	000000000	0000
												3 3/16"	-0.009" to -0.004"	13/64"	Rockwell B63	3 1/2"	1 3/16"	11/32"	1	000000000	0000
												3 11/16"	-0.009" to -0.004"	13/64"	Rockwell B63	4"	1 3/16"	11/32"	1	000000000	0000
												4 3/16"	-0.009" to -0.004"	13/64"	Rockwell B63	4 1/2"	1 3/16"	11/32"	1	000000000	0000
				5 11/16"								-0.009" to -0.004"	13/64"	Rockwell B63	6"	1 3/16"	11/32"	1	000000000	00000

SAE J493 Steel

Cotter Pin Not

Included

These pins conform to SAE International (formerly the Society of Automotive Engineers) dimensional standards.

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.

						Head
	Usable Lg.	Dia. Tolerance	For Max. Cotter Pin Dia.	Min. Hardness	Lg.	Dia.	Ht.	Pkg. Qty.		Pkg.
Carbon Steel







				1" Diameter

				2 1/8"	-0.009" to -0.004"	5/32"	Rockwell B63	2 1/2"	1 3/16"	11/32"	1	000000000	00000

Heat-Treated Steel

Cotter Pin Not

Included

With additional hardness, these pins are less likely to bend, break, and wear than those that aren't heat treated.

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.

Galvanized Carbon Steel—These pins combine the strength of steel with the rust resistance of stainless steel. They're often used as an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.

						Head
	Usable Lg.	Dia. Tolerance	For Max. Cotter Pin Dia.	Min. Hardness	Lg.	Dia.	Ht.	Pkg. Qty.		Pkg.
Carbon Steel







				1" Diameter

				3 7/16"	-0.010" to 0.000"	3/16"	Rockwell C25	3 25/32"	1 7/16"	3/8"	1	000000000	000000


				Galvanized Carbon Steel







								1" Diameter

								3 7/16"	-0.010" to 0.000"	3/16"	Rockwell C25	3 25/32"	1 7/16"	3/8"	1	000000000	00000

Corrosion-Resistant Stainless Steel

High-Strength 17-4 PH Stainless Steel—The strongest stainless steel pins we offer, these are the least likely to deform due to stress and vibration. Similar to 18-8 stainless steel, they're suitable for most wet and outdoor environments. However, they won't hold up to the harsh conditions and chemicals that 316 stainless steel can.

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.

Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these pins have a dark, matte coating to create a finished look. Even if friction from moving parts wears away the finish, they won't rust in wet and outdoor environments. While these pins are strong enough to fasten most components, they don't withstand stress and vibration as well as steel.

						Head
	Usable Lg.	Dia. Tolerance	For Max. Cotter Pin Dia.	Min. Hardness	Lg.	Dia.	Ht.	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				1" Diameter

				2 3/16"	-0.009" to -0.004"	3/16"	Rockwell B80	2 1/2"	1 3/16"	11/32"	1	000000000	000000


				2 7/16"	-0.009" to -0.004"	3/16"	Rockwell B80	2 3/4"	1 3/16"	11/32"	1	000000000	00000
				2 11/16"	-0.009" to -0.004"	3/16"	Rockwell B80	3"	1 3/16"	11/32"	1	000000000	00000
				2 15/16"	-0.009" to -0.004"	3/16"	Rockwell B80	3 1/4"	1 3/16"	11/32"	1	000000000	00000
				3 3/16"	-0.004" to -0.002"	3/16"	Rockwell B80	3 1/2"	1 3/16"	11/32"	1	000000000	00000
				3 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	4"	1 3/16"	11/32"	1	000000000	00000
				4 3/16"	-0.004" to -0.002"	3/16"	Rockwell B80	4 1/2"	1 3/16"	11/32"	1	000000000	00000
				4 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	5"	1 3/16"	11/32"	1	000000000	00000
				5 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	6"	1 3/16"	11/32"	1	000000000	00000


				Black-Oxide 18-8 Stainless Steel







								1" Diameter

								2 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	3"	1 3/16"	11/32"	1	000000000	00000


								2 15/16"	-0.004" to -0.002"	3/16"	Rockwell B80	3 1/4"	1 3/16"	11/32"	1	000000000	00000
								3 3/16"	-0.004" to -0.002"	3/16"	Rockwell B80	3 1/2"	1 3/16"	11/32"	1	000000000	00000
								3 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	4"	1 3/16"	11/32"	1	000000000	00000
								4 3/16"	-0.004" to -0.002"	3/16"	Rockwell B80	4 1/2"	1 3/16"	11/32"	1	000000000	00000
								4 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	5"	1 3/16"	11/32"	1	000000000	00000
								5 11/16"	-0.004" to -0.002"	3/16"	Rockwell B80	6"	1 3/16"	11/32"	1	000000000	00000


								High-Strength 17-4 PH Stainless Steel







												1" Diameter

												2 11/16"	-0.004" to -0.002"	3/16"	Rockwell C28	3"	1 3/16"	11/32"	1	000000000	00000


												3 3/16"	-0.004" to -0.002"	3/16"	Rockwell C28	3 1/2"	1 3/16"	11/32"	1	000000000	00000
												3 11/16"	-0.004" to -0.002"	3/16"	Rockwell C28	4"	1 3/16"	11/32"	1	000000000	00000
												4 11/16"	-0.004" to -0.002"	3/16"	Rockwell C28	5"	1 3/16"	11/32"	1	000000000	00000
												5 11/16"	-0.004" to -0.002"	3/16"	Rockwell C28	6"	1 3/16"	11/32"	1	000000000	00000

Tethered Loop-Grip Clevis Pins

A lanyard or chain prevents your pin from getting lost when removed. With a large loop handle that's easy to grip and pull, these clevis pins are often used for towing and other applications where you regularly secure and release components.

Steel


With Cotter Pin and Lanyard	With Cotter Pin and Lanyard	With Linch Pin and Chain

Painted Carbon Steel—Stronger than stainless steel, these pins won't deform from stress and vibration. The dark enamel creates a finished look but offers minimal corrosion resistance. They're best for dry environments.

Cotter Pin Included—The hairpin cotter is quicker to install and remove than a linch pin but not as secure.

Linch Pin Included—Less likely to get knocked or shaken out of place than a hairpin, the linch pin has a ring that snaps down and locks.

	Min. Hardness	Head Dia.	Handle Color		Each
Zinc-Plated Carbon Steel with Cotter Pin and Lanyard







	1" Diameter

	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	1 3/4"	—	000000000	000000


	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	1 7/8"	Red	000000000	00000
	6"	-0.016" to 0.016"	3/16"	Rockwell C19	1 3/4"	—	000000000	00000
	6"	-0.016" to 0.016"	3/16"	Rockwell C19	1 7/8"	Red	000000000	00000


	Zinc-Yellow-Chromate-Plated Carbon Steel with Cotter Pin and Lanyard







					1" Diameter

					7"	-0.010" to 0.000"	11/64"	Rockwell C25	1 5/8"	—	000000000	00000


					Zinc-Yellow-Chromate-Plated Carbon Steel with Linch Pin and Chain







									1" Diameter

									7"	-0.012" to 0.000"	9/32"	Rockwell C28	1 5/8"	—	000000000	00000


									Black-Painted Carbon Steel with Cotter Pin and Lanyard







													1" Diameter

													4 1/2"	-0.003" to 0.002"	17/64"	Rockwell C32	—	Red	000000000	00000


													7 1/2"	-0.003" to 0.002"	17/64"	Rockwell C32	—	Red	000000000	00000
													12"	-0.003" to 0.002"	11/64"	Rockwell C32	—	Red	000000000	00000

Corrosion-Resistant Stainless Steel


With Cotter Pin and Lanyard	With Linch Pin and Chain

Cotter Pin Included—The hairpin cotter is quicker to install and remove than a linch pin but not as secure.

Linch Pin Included—Less likely to get knocked or shaken out of place than a hairpin, the linch pin has a ring that snaps down and locks.

	Min. Hardness	Head Dia.		Each
High-Strength 17-4 PH Stainless Steel with Cotter Pin and Lanyard







	1" Diameter

	6"	-0.016" to 0.016"	3/16"	Rockwell B80	1 3/4"	000000000	000000


	High-Strength 17-4 PH Stainless Steel with Linch Pin and Chain







					1" Diameter

					6"	-0.016" to 0.016"	17/64"	Rockwell B80	1 3/4"	000000000	00000

Bent-Head Clevis Pins

Slightly curved, these pins take up less space than a loop grip or T-handle while still giving you something to grab. The bent head also acts as a stop so the pin can’t be pulled out from the other end. To secure, slide a cotter pin into the hole.

Steel

	Min. Hardness		Each
Zinc-Plated Carbon Steel with Cotter Pin







	1" Diameter

	4 3/4"	-0.010" to 0.000"	11/64"	Not Rated	000000000	000000


	5"	-0.003" to 0.000"	11/64"	Not Rated	000000000	00000
	6"	-0.003" to 0.000"	11/64"	Not Rated	000000000	00000
	6 3/4"	-0.010" to 0.000"	11/64"	Not Rated	000000000	00000
	8"	-0.003" to 0.000"	11/64"	Not Rated	000000000	00000
	10"	-0.003" to 0.000"	11/64"	Not Rated	000000000	00000

Selectable-Length Bent-Head Clevis Pins

Change the usable length in _1/4" increments by inserting a cotter pin into one of the holes. These pins are often used as replacement parts when you don't have the exact pin you need on hand. The bent head gives you a better grip than flat-head pins and acts as a stop so the pin can’t be pulled out from the other end.

The excess length can be cut off after installation.

Steel

Image of Product. Front orientation. Contains Annotated. Clevis Pins. Selectable-Length Bent-Head Clevis Pins.

	No. of Holes	Min. Hardness	Lg.		Each
Zinc-Plated Carbon Steel with Cotter Pin







	1" Diameter

	4 1/8", 4 7/16", 4 3/4", 5 1/16", 5 3/8", 5 11/16", 6"	-0.005" to 0"	13/64"	7	Not Rated	6"	000000000	000000


	6 1/8", 6 7/16", 6 3/4", 7 1/16", 7 3/8", 7 11/16", 8"	-0.005" to 0"	13/64"	7	Not Rated	8"	000000000	00000

Hydraulic Cylinder Clevis Pins

Secure parts onto hydraulic cylinders. Use these pins with clevis rod ends and pivot brackets (sold separately).

17-4 PH Stainless Steel—Stainless steel pins are more corrosion resistant than steel pins in wet environments.

	Dia.	Usable Lg.	Lg.	Through-Hole Dia.	For Hydraulic Cylinder Mounting Pattern	Includes		Each
1144 Carbon Steel



	3 1/4"	1"	3 7/32"	3 19/32"	0.14"	NFPA Light Duty, NFPA/JIC Heavy Duty	Two Cotter Pins	00000000	000000


	17-4 PH Stainless Steel



			—	1"	3 1/8"	3 3/8"	—	NFPA Light Duty, NFPA/JIC Heavy Duty	Two Retaining Rings	0000000	000000

Loop-Grip Clevis Pins with Toggle

For components you need to lock in place but also disconnect frequently, these pins have a toggle end and large loop handle. No need for a separate cotter pin, the toggle swivels so you can insert into a hole and then swivels back to secure. Fold down the handle to save space when installed.

Steel

		Each
Zinc-Plated Carbon Steel







	1" Diameter

	3 1/2"	-0.004" to 0.001"	Rockwell B90	000000000	000000


	6"	-0.004" to 0.001"	Rockwell B90	000000000	00000

T-Handle Clevis Pins

With the widest grip, these pins give you the most leverage. They’re also the easiest to grab with gloved or slippery hands but take up the most space when installed. To secure, slide a cotter pin (not included) into the hole.

Steel

	Min. Hardness	Handle Color		Each
Black-Zinc-Plated Carbon Steel







	1" Diameter

	6"	-0.003" to 0.001"	1/4"	Rockwell B90	Black	000000000	000000

Clevis Pins with Wire Retainer

Since you can quickly install and release the wire retainer, these pins cut down the time it takes to swap out parts. They are typically used to connect drive shafts to equipment such as gearboxes, pumps, and compressors. The retainer pivots to accommodate nearby components. Also known as power take-off (PTO) pins.

Steel

Square-Retainer with

Hook Closure

	Retainer Clearance	Min. Hardness	Lg.		Each
Zinc-Plated Carbon Steel







	Square-Retainer with Hook Closure

	1"	5 1/2"	-0.016" to 0.016"	3 1/4"	Rockwell C22	7 3/8"	000000000	000000


	1"	6 1/4"	-0.015" to 0.000"	3 1/4"	Rockwell B90	7 3/4"	000000000	00000

Corrosion-Resistant Stainless Steel

Square-Retainer with

Hook Closure

	Retainer Clearance	Min. Hardness	Lg.		Each
18-8 Stainless Steel







	Square-Retainer with Hook Closure

	1"	5 1/2"	-0.016" to 0.016"	3 1/4"	Rockwell B75	7 5/16"	000000000	000000

Clevis Pins with Locking Retainer

Secure and release these heavy duty pins with one hand. Swing the welded solid steel retainer closed, and it locks onto the pin until you press the lever to open. Unlike other clevis pins, you don’t have to reach around to insert a cotter pin or worry about it falling out. These are often used for towing since they make it easy to hitch and unhitch your equipment.

Steel

Powder-Coated Carbon Steel—A shiny black finish creates a barrier against rust in damp and outdoor environments. While not as corrosion resistant as stainless steel, these pins are stronger and won't deform under stress.

	Retainer Clearance	Min. Hardness	Lg.		Each
Black-Powder-Coated Carbon Steel







	Square-Retainer

	1"	6"	-0.003" to 0.010"	3"	Rockwell C32	10"	000000000	000000