Safety Snap Pins | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Length Length

	Material Material

Steel

Stainless Steel

Brass

	Finish Finish

Zinc Plated

Zinc Yellow-Chromate Plated

Zinc Galvanized

Powder Coated

Cadmium Yellow-Chromate
Plated

	Usable Length Usable Length

	Pin Type Pin Type

	Clevis
	Cotter
	For Tubing

	Cotter Pin Type Cotter Pin Type


Wire Snap	Hairpin

Standard	Linch

Hairpin for Retaining Grooves	Bow Tie

Hammer Set	Locking

Ring	Wedge Lock

	Wire Diameter Wire Diameter

	Retainer Shape Retainer Shape

Squared

Rounded

	End Type End Type


Wire Retainer	Locking Retainer

	For Clevis Pin Diameter For Clevis Pin Diameter

	Retainer Closure Retainer Closure

Loop

Hook

Loop with Easy-Release Tab

	Retainer Clearance Retainer Clearance

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Eye Diameter Eye Diameter

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Specifications Met Specifications Met

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

REACH Compliant

	Minimum Hardness Minimum Hardness

	Passivation Passivation

Not Passivated

Passivated

	OD OD

	ID ID

999 Products

Pins

Wire-Lock Clevis Pins

The wire retainer snaps closed to secure the pin for a one-piece alternative to a clevis and cotter pin combination. Also known as PTO pins.

Wire-Lock Pins for Telescoping Tubing

Sized to fit snugly around pipe and tube, these pins use spring force to keep the retainer closed.

Heavy Duty Locking Clevis Pins

Often used to connect equipment to a drawbar in towing applications, these rugged pins have a welded solid steel retainer.

Strong-Hold Wire-Snap Cotter Pins

These pins are coiled for more tension than standard wire-snap cotter pins.

Wire Snap Cotter Pins

Also known as safety pins, these are easy to install and remove. Tension keeps them closed.

Hairpin Cotter Pins

Also known as hitch pin clips and R-clips, these pins are easy to install and remove.

Strong-Hold Hairpin Cotter Pins

A coil makes a stronger grip than standard hairpin cotter pins to prevent accidental release.

Cotter Pins

Also known as split pins, these have one prong slightly longer than the other so they’re easy to open. Bend prongs outward to secure.

Linch Pins

Slide the pin through a hole then snap the ring down to lock these pins in place. Also known as click pins.

Hairpin Clips

Clip these pins onto grooved shafts and clevis pins with retaining ring grooves.

Locking Cotter Pins

An extra loop locks these cotter pins more securely than other pins, so they can't vibrate out or be knocked off.

Bow Tie Cotter Pins

The double-head design lets you push or pull these pins from either side of the hole. Once in place there's little chance they will be vibrated out or knocked off.

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.

Cotter Rings

Twist these rings on to lock pins in place. They don't have the sharp ends of other cotter pins.

Wedge-Lock Cotter Pins

Slide these heavy duty pins into the through-hole in a clevis pin, then hit them with a hammer to wedge the prongs open.

Hammer-Set Cotter Pins

For parts that spin or are otherwise difficult to access, slide these pins in and tap them with a hammer for a temporary hold. Reposition work, then bend the prongs outward to secure.

Fastener Assortments

Split Ring Assortments

Cotter Pin Assortments

Also known as split pins, these have one prong slightly longer than the other so they’re easy to open.