Parallel Pins | McMaster-Carr

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

REACH Compliant

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Passivation Passivation

Passivated

Not Passivated

	Specifications Met Specifications Met

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

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	For Hole Diameter For Hole Diameter

	Thread Size Thread Size

	Large End Diameter Large End Diameter

	Small End Diameter Small End Diameter

	Finish Finish

	Head Diameter Head Diameter

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7,062 Products

Pins

Dowel Pins

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

Plastic Dowel Pins

Plastic pins are a nonconductive and nonmagnetic alternative to metal dowel pins. Use them 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.

Dowel Pin Stock

Cut this 12" stock to the length you need.

Oversized Dowel Pins

Oversized to fit worn and enlarged holes, these pins work well as repair and replacement parts.

Pull-Out Dowel Pins

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

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.

Full-Groove Dowel Pins

Grooves run the full length of these pins for a firm hold that won't spin. Use them in place of standard dowel, spring, and taper pins to fasten parts. Also known as type A pins.

Half-Groove Dowel Pins

These pins make good hinges or pivots. The grooved half locks pins in position, while the smooth half can act as a pivot. Also known as type H pins.

Center-Groove Dowel Pins

Center-groove pins are often used in place of clevis pins or to create T-handles. The grooved center locks pins in position, while the smooth ends act as a pivot. Also known as type E pins.

Quarter-Groove Dowel Pins

Quarter-groove pins are well suited for hinges or pivots. The grooved end locks pins in position, while the smooth portion can act as a pivot. Also known as type C pins.

Half-Groove Dowel Pins with Notch

These pins are commonly used as anchors for tension springs. The grooved half locks pins in position, and spring ends fit in to the notch. Also known as type G pins.

Round Head Full-Groove Dowel Pins

Grooves hold these pins in place, and a round head gives them a finished appearance.

Wood Dowel Pins

Join two pieces of wood with these dowel pins. When glued, they expand for a tight fit.

Knurled Dowel Pins

The full length of these pins is knurled for a tight grip that won't spin.

Half-Knurled Dowel Pins

Use these as pivot or hinge pins. The knurled half locks pins in position, while the smooth half acts as a pivot.

Round Head Barbed Dowel Pins

Barbs bite into plastics and soft metals such as aluminum for a strong hold, and a round head gives a finished appearance.

Pins for Shear Hubs

For use with Browning shear hubs, these pins are designed to fail at specific loads to protect heavy duty machinery from torque overload.

Two-Way Barbed Dowel Pins

Use these pins to fasten components made of soft materials such as plastic or aluminum. Opposing barbs bite into each piece, pulling them together for a tight, secure fit.

Hollow Dowel Pins

Pass wires and other components through these hollow pins.

Core Pins

These pins have a flat head to fit into a counterbored hole.

Flush-Mount Core Pins

A 60° beveled head fits into a countersunk hole.

Punch Pins

Use these pins with a die to punch 3/16" and larger holes. Pins can be modified to fit your application.

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.

Slotted Spring Pins

Also known as roll, tension, split, and expansion pins, these pins have a slot along one side that you squeeze closed to install them into unthreaded holes.

Vibration-Resistant Slotted Spring Pins

Interlocking teeth help these pins resist sliding when exposed to vibration. They have a slot that presses closed when the pins are inserted so they don't flex after installation.

Heavy Duty Coiled Spring Pins

For tough jobs, these spiral pins are 30% stronger than our standard coiled spring pins. They remain flexible after installation to absorb shock and vibration, and work well in holes that are out of round.

Coiled Spring Pins

These spiral pins remain flexible after installation, so they absorb shock and vibration better than slotted spring pins. They work well in holes that are out of round.

Taper Pins

To remove these pins, hit the small end with a punch to drive the pin out.

Tapped Taper Pins

These internally threaded pins sit flush in an assembly. For easy removal from a blind hole, thread a screw into the pin and pull out.

Threaded Taper Pins

Threads on these pins stick out for easy removal from blind holes. Tighten the hex nut to draw the pin out.

Flat-Head Made-to-Order Pins

Create a custom headed pin with your choice of material, dimensions, and end type.

Made-to-Order Pins

Choose a material, head type, end type, and size to create a custom pin.

Through-Hole Weld-On Pins

Pass these pins through a mounting hole and weld the head to the surface.

Surface-Mount Weld-On Pins

Weld these pins directly to a surface —no mounting hole required.

Pin Assortments

Slotted Spring Pin Assortments

Slotted spring pins are also known as roll, tension, split, and expansion pins. Because the slot is pressed closed when the pins are inserted, they don't flex after installation.

Dowel Pin Assortments

Dowel pins are commonly used as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. They're slightly oversized for a tight fit.

Coiled Spring Pin Assortments

Coiled spring pins are flexible after installation, so they absorb shock and vibration better than slotted spring pins. They also have higher dynamic load capacities and accommodate wider hole tolerances.

Partially Threaded Studs

Metric Partially Threaded Studs

Screw the threaded end of these metric studs into a tapped hole and use the unthreaded end as a pivot point, hinge, shaft, or locator pin.

Partially Threaded Studs

Screw these studs into a tapped hole and use them as a pivot point, hinge, shaft, or locator pin.