Loop Head Fasteners | McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Usable Length Usable Length

	Head Type Head Type	Show

Loop

	Head Type Head Type	Hide

	Material Material

Stainless Steel

Steel

	Finish Finish

Painted

Zinc Plated

Zinc Yellow-Chromate Plated

	Pin Type Pin Type


Quick Release	Clevis

	End Type End Type


Spring-Loaded Ball	Through Hole

Toggle

	Handle Material Handle Material

Stainless Steel

Steel

1045 Carbon Steel

	Shaft Type Shaft Type

	Plain

	Handle Finish Handle Finish

Zinc Plated

Plastic Coated

Zinc Yellow-Chromate Plated

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Handle Color Handle Color

	Orange
	Red

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	For Maximum Cotter Pin Diameter For Maximum Cotter Pin Diameter

	Head Diameter Head Diameter

	End Shape End Shape

	Chamfered

	Breaking Strength Breaking Strength

	Lock Type Lock Type

Nonlocking

	Diameter at Extended Ball Height Diameter at Extended Ball Height

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Ball Material Ball Material

Stainless Steel

	Spring Material Spring Material

Stainless Steel

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137 Products

Loop-Grip Quick-Release Pins

A bright-orange plastic-coated handle makes these pins easy to see and easy to grip. Pins have a spring-loaded ball that pops out when the pin is pushed into a hole, and retracts when the pin is pulled out. For the best fit, the hole should be as close to the diameter as possible, but not larger than the diameter at extended ball height. Pins are made of steel for good strength. Breaking strength is measured as single shear, which is the force required to break the pin into two pieces.

For technical drawings and 3-D models, click on a part number.

1144 Carbon Steel
Usable Lg.	Dia. Tolerance	Dia. at Extended Ball Ht.	Min. Hardness	Breaking Strength, lbs.	Ball Material	Handle Material	Handle Color		Each
5/16" Dia.
1"	-0.005" to 0.004"	0.355"	Rockwell B96	8,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
1 1/2"	-0.005" to 0.004"	0.355"	Rockwell B96	8,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
2"	-0.005" to 0.004"	0.355"	Rockwell B96	8,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
2 1/2"	-0.005" to 0.004"	0.355"	Rockwell B96	8,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
3"	-0.005" to 0.004"	0.355"	Rockwell B96	8,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
4"	-0.005" to 0.004"	0.355"	Rockwell B96	8,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
3/8" Dia.
1"	-0.005" to 0.004"	0.425"	Rockwell B96	11,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
1 1/2"	-0.005" to 0.004"	0.425"	Rockwell B96	11,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
2"	-0.005" to 0.004"	0.425"	Rockwell B96	11,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
2 1/2"	-0.005" to 0.004"	0.425"	Rockwell B96	11,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
3"	-0.005" to 0.004"	0.425"	Rockwell B96	11,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
4"	-0.005" to 0.004"	0.425"	Rockwell B96	11,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
1/2" Dia.
1"	-0.005" to 0.004"	0.565"	Rockwell B96	21,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
1 1/2"	-0.005" to 0.004"	0.565"	Rockwell B96	21,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	0000
2"	-0.005" to 0.004"	0.565"	Rockwell B96	21,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
2 1/2"	-0.005" to 0.004"	0.565"	Rockwell B96	21,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
3"	-0.005" to 0.004"	0.565"	Rockwell B96	21,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
4"	-0.005" to 0.004"	0.565"	Rockwell B96	21,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
5/8" Dia.
1 1/2"	-0.005" to 0.004"	0.7"	Rockwell B96	33,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
2"	-0.005" to 0.004"	0.7"	Rockwell B96	33,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
2 1/2"	-0.005" to 0.004"	0.7"	Rockwell B96	33,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
3"	-0.005" to 0.004"	0.7"	Rockwell B96	33,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
4"	-0.005" to 0.004"	0.7"	Rockwell B96	33,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
5"	-0.005" to 0.004"	0.7"	Rockwell B96	33,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
3/4" Dia.
1 1/2"	-0.005" to 0.004"	0.84"	Rockwell B96	47,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
2"	-0.005" to 0.004"	0.84"	Rockwell B96	47,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
2 1/2"	-0.005" to 0.004"	0.84"	Rockwell B96	47,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
3"	-0.005" to 0.004"	0.84"	Rockwell B96	47,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
4"	-0.005" to 0.004"	0.84"	Rockwell B96	47,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000
5"	-0.005" to 0.004"	0.84"	Rockwell B96	47,000	440C Stainless Steel	Plastic-Coated 1144 Carbon Steel	Orange	000000000	00000

Loop-Grip Clevis Pins

With Hairpin Cotter Pin and Lanyard

With Red Handle, Hairpin Cotter Pin, and Lanyard

With Locking Ring and Chain

A large loop handle makes these pins easy to grip. Pins come with a lanyard and hairpin cotter pin or chain and locking ring for quick installation and removal. The lanyard or chain keeps the pin from getting lost when disassembled.

Steel pins offer good strength. Pins with a zinc yellow-chromate plated finish have some corrosion resistance.

17-4 PH stainless steel pins are strong, magnetic, and resist corrosion.

For technical drawings and 3-D models, click on a part number.

With Hairpin Cotter Pin and Lanyard
Dia.	Usable Lg.	Dia. Tolerance	For Max. Cotter Pin Dia.	Min. Hardness		Each
Zinc-Plated 1144 Carbon Steel
1/2"	3 1/2"	-0.016" to 0.016"	5/32"	Rockwell C19	000000000	000000
1/2"	5"	-0.016" to 0.016"	5/32"	Rockwell C19	000000000	00000
5/8"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
5/8"	6"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
3/4"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
3/4"	6"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
7/8"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
7/8"	6"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1"	6"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1 1/8"	7"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1 1/4"	7"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
Zinc Yellow-Chromate-Plated 1144 Carbon Steel
1 1/8"	7"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1 1/4"	7"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
Zinc-Plated 1215 Carbon Steel
3/8"	3"	-0.016" to 0.016"	7/64"	Rockwell B80	000000000	00000
3/8"	4"	-0.016" to 0.016"	7/64"	Rockwell B80	000000000	00000
Zinc Yellow-Chromate-Plated 1541 Carbon Steel
3/8"	4"	-0.010" to 0.000"	3/32"	Rockwell C25	000000000	0000
1/2"	4"	-0.010" to 0.000"	1/8"	Rockwell C25	000000000	0000
1/2"	5 3/4"	-0.010" to 0.000"	1/8"	Rockwell C25	000000000	0000
5/8"	4"	-0.010" to 0.000"	9/64"	Rockwell C25	000000000	0000
5/8"	6"	-0.010" to 0.000"	9/64"	Rockwell C25	000000000	0000
3/4"	4 1/4"	-0.010" to 0.000"	9/64"	Rockwell C25	000000000	00000
3/4"	6 1/4"	-0.010" to 0.000"	9/64"	Rockwell C25	000000000	00000
7/8"	7"	-0.012" to 0.000"	11/64"	Rockwell C19	000000000	00000
1"	7"	-0.010" to 0.000"	11/64"	Rockwell C25	000000000	00000
17-4 PH Stainless Steel
5/8"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
5/8"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
3/4"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
3/4"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
7/8"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
1"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
1 1/8"	7"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
1 1/4"	7"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
With Red Handle, Hairpin Cotter Pin, and Lanyard
Black-Painted 1004-1045 Carbon Steel
3/8"	4"	-0.003" to 0.002"	9/64"	Rockwell C19	000000000	0000
1/2"	3 5/8"	-0.003" to 0.002"	5/32"	Rockwell C19	000000000	0000
5/8"	4"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
5/8"	5 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
3/4"	4"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
3/4"	6 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
7/8"	4"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
7/8"	6 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
1"	4 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
1"	7 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
1"	12"	-0.003" to 0.002"	11/64"	Rockwell C19	000000000	00000
1 1/8"	8 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
1 1/8"	12"	-0.003" to 0.002"	11/64"	Rockwell C19	000000000	00000
1 1/4"	8 1/2"	-0.003" to 0.002"	17/64"	Rockwell C19	000000000	00000
1 1/4"	12"	-0.003" to 0.002"	11/64"	Rockwell C19	000000000	00000
1 1/2"	8 1/2"	-0.003" to 0.002"	19/64"	Rockwell C19	000000000	00000
1 1/2"	13"	-0.003" to 0.002"	1/4"	Rockwell C19	000000000	00000
1 3/4"	8 1/2"	-0.003" to 0.002"	1/4"	Rockwell C19	000000000	00000
1 3/4"	13"	-0.003" to 0.002"	1/4"	Rockwell C19	000000000	000000
2"	8 1/2"	-0.003" to 0.002"	1/4"	Rockwell C19	000000000	00000
2"	13"	-0.003" to 0.002"	1/4"	Rockwell C19	000000000	000000
Zinc-Plated 1144 Carbon Steel
1/2"	4"	-0.016" to 0.016"	5/32"	Rockwell C19	000000000	00000
5/8"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
5/8"	6"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
3/4"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
3/4"	6 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
7/8"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
1"	6"	-0.016" to 0.016"	3/16"	Rockwell C19	000000000	00000
With Locking Ring and Chain
Zinc Yellow-Chromate-Plated 1541 Carbon Steel
3/8"	4"	-0.012" to 0.000"	13/64"	Rockwell C19	000000000	0000
1/2"	4"	-0.012" to 0.000"	13/64"	Rockwell C19	000000000	00000
1/2"	5 3/4"	-0.012" to 0.000"	13/64"	Rockwell C19	000000000	00000
5/8"	4"	-0.012" to 0.000"	17/64"	Rockwell C19	000000000	00000
5/8"	5 3/4"	-0.012" to 0.000"	13/64"	Rockwell C19	000000000	00000
3/4"	4"	-0.012" to 0.000"	17/64"	Rockwell C19	000000000	00000
3/4"	6 1/4"	-0.012" to 0.000"	13/64"	Rockwell C19	000000000	00000
7/8"	7"	-0.012" to 0.000"	25/64"	Rockwell C19	000000000	00000
1"	7"	-0.012" to 0.000"	9/32"	Rockwell C19	000000000	00000
1 1/8"	7"	-0.012" to 0.000"	9/32"	Rockwell C19	000000000	00000
1 1/4"	7"	-0.012" to 0.000"	9/32"	Rockwell C19	000000000	00000
17-4 PH Stainless Steel
5/8"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
5/8"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
3/4"	4 1/2"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
3/4"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
7/8"	6"	-0.016" to 0.016"	3/16"	Rockwell B80	000000000	00000
1"	6"	-0.016" to 0.016"	17/64"	Rockwell B80	000000000	00000
1 1/8"	7"	-0.016" to 0.016"	17/64"	Rockwell B80	000000000	00000
1 1/4"	7"	-0.016" to 0.016"	17/64"	Rockwell B80	000000000	00000

Toggle-Lock Clevis Pins with Handle

A swivel handle makes these pins easy to install and remove, while the toggle locks them in place. Flip the toggle to release the pin.

Zinc-plated carbon steel pins have good strength and some corrosion resistance.

18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic.

Zinc-Plated 1004-1045 Carbon Steel
Usable Lg.	Dia. Tolerance	Min. Hardness		Each
1/2" Dia.
3 1/2"	-0.003" to 0.001"	Rockwell B90	000000000	000000
5 1/2"	-0.003" to 0.001"	Rockwell B90	000000000	00000
5/8" Dia.
3 1/2"	-0.003" to 0.001"	Rockwell B90	000000000	00000
5 1/2"	-0.003" to 0.001"	Rockwell B90	000000000	00000
3/4" Dia.
3 1/2"	-0.003" to 0.001"	Rockwell B90	000000000	00000
6"	-0.003" to 0.001"	Rockwell B90	000000000	00000
7/8" Dia.
3 1/2"	-0.003" to 0.001"	Rockwell B90	000000000	00000
6"	-0.003" to 0.001"	Rockwell B90	000000000	00000
1" Dia.
3 1/2"	-0.004" to 0.001"	Rockwell B90	000000000	00000
6"	-0.004" to 0.001"	Rockwell B90	000000000	00000
Zinc-Plated 1045 Carbon Steel
13/16" Dia.
6 1/4"	-0.005" to 0"	Rockwell B70	000000000	00000
1 1/4" Dia.
7"	-0.010" to 0"	Rockwell B70	000000000	00000
10mm Dia.
70mm	-0.090mm to 0mm	Rockwell B70	000000000	0000
12mm Dia.
90mm	-0.110mm to 0mm	Rockwell B70	000000000	00000
16mm Dia.
90mm	-0.110mm to 0mm	Rockwell B70	000000000	00000
20mm Dia.
150mm	-0.130mm to 0mm	Rockwell B70	000000000	00000
25mm Dia.
100mm	-0.130mm to 0mm	Rockwell B70	000000000	00000
150mm	-0.130mm to 0mm	Rockwell B70	000000000	00000
18-8 Stainless Steel
3/8" Dia.
2 3/4"	-0.004" to 0"	Not Rated	00000000	00000
4"	-0.004" to 0"	Not Rated	00000000	00000
1/2" Dia.
3 1/2"	-0.005" to 0"	Not Rated	00000000	00000
5 1/2"	-0.005" to 0"	Not Rated	00000000	00000
5/8" Dia.
3 1/2"	-0.005" to 0"	Not Rated	00000000	00000
5 1/2"	-0.005" to 0"	Not Rated	00000000	00000
3/4" Dia.
3 1/2"	-0.005" to 0"	Not Rated	00000000	00000
6"	-0.005" to 0"	Not Rated	00000000	000000