McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Length Length

	Material Material

	End Shape End Shape


Chamfered	Rounded

Flat

	Pin Type Pin Type

	Dowel
	Ejector
	Quick Release

	Shaft Type Shaft Type


Plain	Slotted

D-Profile	Spiral

	Head Type Head Type


Plain	Flat

Tapped	T-Handle

	Tolerance Rating Tolerance Rating

Standard

Undersized

	Minimum Hardness Minimum Hardness

	Specifications Met Specifications Met

ASME

DIN

ISO

Mil. Spec.

ANSI

	End Type End Type


Plain	Spring-Loaded Ball

	Breaking Strength Breaking Strength

Less than 10,000 lbs.

10,000 to 19,999 lbs.

20,000 to 29,999 lbs.

30,000 to 99,999 lbs.

100,000 lbs. or greater

Not Rated

	Passivation Passivation

Not Passivated

Passivated

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Head Diameter Head Diameter

	Usable Length Usable Length

	Head Height Head Height

	Finish Finish

	Clamp Type Clamp Type


Single Nut	Dual Nut

U Bolt

	Component Component

Copper-to-Aluminum
Connector

	Staple Style Staple Style

Insulated

Curved

Flat

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2,527 Products

Pins

Dowel Pins

Use these metal dowel pins as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts.

Undersized Dowel Pins

Slip these pins in and out during maintenance or prototyping—they’re undersized to make alignment easier.

Pull-Out Dowel Pins

To remove these pins, thread a screw or tool into the tapped hole, then pull them out.

Spiral-Vent Pull-Out Dowel Pins

A spiral groove cut into these pins relieves trapped air but stays in 360° contact with the hole for a secure fit that's easy to insert in and remove from blind holes. To remove, thread a screw or tool into the tapped hole, then pull the pin out.

Flat-Vent Pull-Out Dowel Pins

The flat side of these pins relieves trapped air, making them easier to insert in and remove from blind holes. To remove, thread a screw or tool into the tapped hole, then pull the pin out.

Hollow Dowel Pins

Pass wires and other components through these hollow pins.

Ejector Pins

Push parts out of molds with these hardened pins. Also known as knockout and forged pins.

Shoulder-Style Ejector Pins

A thick shoulder makes these pins more rigid than standard ejector pins.

T-Handle Super-Corrosion-Resistant
Locking Quick-Release Pins

A T-handle makes these pins easy to grip. Made entirely of stainless steel, they stand up to corrosive enviroments. Pins lock in place until you push the button to release the spring-loaded retaining balls.