McMaster-Carr

Choose a Category

	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Length Length

	Material Material

	Finish Finish

Black Phosphate

Black Ultra-Corrosion-
Resistant Coated

Cadmium Plated

Cadmium Yellow-Chromate
Plated

Zinc Yellow-Chromate Plated

Zinc-Chromate Plated

	Usable Length Usable Length

5/16"-3/8"

7/16"-1/2"

9/16"-5/8"

3/4"-1 1/4"

13/16"-15/16"

1 1/4"-1 3/4"

1 3/4"-2 1/4"

2 1/4"-2 3/4"

	For OD For OD

3/16" to 7/32"

1/4" to 9/32"

5/16" to 11/32"

3/8" to 13/32"

7/16" to 15/32"

1/2" to 17/32"

9/16" to 19/32"

5/8" to 21/32"

11/16" to 23/32"

3/4" to 25/32"

1 to 1.4mm

1.4 to 2mm

2 to 2.5mm

2.5 to 3mm

3 to 4mm

4 to 5 mm

5 to 7 mm

6 to 8 mm

7 to 9mm

8 to 11 mm

9 to 12 mm

10 to 14 mm

11 to 15 mm

13 to 18 mm

16 to 24 mm

20 to 31 mm

25 to 38mm

32 to 42mm

	Retaining Ring Style Retaining Ring Style


Side Mount	Standard

Spiral	Crimp On

Push On	Clip On

	Head Type Head Type


Flat	Ring

Retaining Ring Groove	Loop

Bent	Plain

Knob	T-Handle

Through Hole

	End Type End Type

	Wire Retainer
	Retaining Ring Groove
	Through Hole
	Spring-Loaded Ball
	Wedge
	Toggle
	Button
	Locking Retainer
	Plain
	Adjustable Length

	For Groove Diameter For Groove Diameter

	Pin Type Pin Type


Clevis	Cotter

Quick Release	For Tubing

	Retaining Ring Type Retaining Ring Type

External

Internal

	Minimum Hardness Minimum Hardness

	Cotter Pin Type Cotter Pin Type


Hairpin	Linch

Bow Tie	Hairpin for Retaining Grooves

Standard	Locking

Hammer Set	Wedge Lock

Wire Snap

	Passivation Passivation

Not Passivated

Passivated

	Ring Thickness Ring Thickness

	Wire Diameter Wire Diameter

	For Groove Width For Groove Width

	Ring ID Ring ID

	Head Diameter Head Diameter

	For Clevis Pin Diameter For Clevis Pin Diameter

1/16"-1/8"

7/64"-9/64"

1/8"-3/16"

3/16"-1/4"

1/4"

1/4"-5/16"

1/4"-3/8"

1/4"-1/2"

5/16"

5/16"-3/8"

5/16"-1/2"

3/8"

3/8"-7/16"

3/8"-1/2"

3/8"-5/8"

7/16"

7/16"-1/2"

7/16"-3/4"

1/2"

1/2"-5/8"

1/2"-3/4"

1/2"-7/8"

5/8"

5/8"-3/4"

5/8"-7/8"

5/8"-1"

3/4"

3/4"-1 1/16"

3/4"-1 1/8"

7/8"

7/8"-1"

1"-1 9/16"

1 1/8"-1 1/2"

1 1/4"-1 1/2"

9-14mm

10-16mm

16-20mm

20-28mm

28-40mm

28-45mm

30-45mm

	For Maximum Cotter Pin Diameter For Maximum Cotter Pin Diameter

3,723 Products

Pins

Clevis Pins

An alternative to bolts and rivets, these pins have a locking feature, such as a hole for a cotter pin, that is used to secure them.

Cotter Pins

These pins secure the ends of clevis pins and shafts to keep components in place.

Quick-Release Pins

A spring-loaded retaining ball pops out to hold these pins in place.

Other Pin Retainers

Retaining Rings

Fastener Assortments

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