Steel Detent Pins | McMaster-Carr

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	Nose Material Nose Material

	Body Material Body Material

Steel

Brass

Aluminum

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Body Type Body Type


Threaded	Press Fit

Weldable	Plate Mount

Thread In

	Nose Type Nose Type


Ball	Long

Hex

	Locking Type Locking Type


Without Thread Locker	Thread Locker

	Diameter Diameter

	Usable Length Usable Length

	Body Length Body Length

	Nose Diameter Nose Diameter

	Drive Style Drive Style


Slotted	Hex

External Hex	Spring Plunger Wrench

	Extended Nose Force Extended Nose Force

	Extended Nose Length Extended Nose Length

	Compressed Nose Force Compressed Nose Force

	Head Type Head Type


Ring	T-Handle

Knob	Flat

Loop	Ball

	End Type End Type

	Spring-Loaded Ball

	Handle Material Handle Material

	Handle Type Handle Type


Knob	Pull Ring

T-Handle	L-Handle

Ball	Add a Knob

	Material Material

Steel

Brass

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

	Spring Material Spring Material

1,198 Products

Ball-Nose Spring Plungers

Slotted Ball-Nose Spring Plungers

Install these spring plungers with a screwdriver—they're slotted on one or both ends.

Press-Fit Ball-Nose Spring Plungers

Designed with a flange to keep the plunger from being pushed through a hole when the ball is depressed.

Flush-Mount Press-Fit Ball-Nose Spring Plungers

The flangeless design allows these spring plungers to mount flush with a surface.

Hex-Drive Ball-Nose Spring Plungers

Install with a hex key for more torque than slotted ball-nose spring plungers.

Retractable Long-Nose Spring Plungers

Knob-Style Retractable Spring Plungers

Retract the nose by pulling the knob.

Twist-to-Lock Knob-Style Retractable Spring Plungers

Lock the nose into the retracted position by pulling the knob and rotating it 90°.

Pull-Ring Retractable Spring Plungers

The ring allows you to attach these spring plungers to a lanyard.

Twist-to-Lock Pull-Ring Retractable Spring Plungers

Lock the nose into the retracted position by pulling the ring and rotating it 90°.

Pull-Ring Retractable Spring Plungers with Lanyard

Use the lanyard as a tether to secure the spring plunger to machinery and prevent accidental drops.

L-Handle Retractable Spring Plungers

Twist-to-Lock L-Handle Retractable Spring Plungers

Lock the nose into the retracted position by pulling the handle and rotating it 90°.

T-Handle Retractable Spring Plungers

Add-a-Knob Retractable Spring Plungers

Thread onto machinery or attach a knob or handle to the threaded spindle.

Low-Profile Knob-Style Retractable
Spring Plungers with Hex Drive

Install by hand or with a hex key in low-clearance applications.

T-Handle Weld-Mount Retractable Spring Plungers

A T-handle makes these spring plungers easy to grip.

Twist-to-Lock T-Handle Weld-Mount
Retractable Spring Plungers

A quarter turn of the handle locks these plungers in the retracted position. The T-handle is easy to grip.

Ball-Style Weld-Mount Retractable Spring Plungers

A smooth ball handle is easy to grip and won't catch on other parts.

Twist-to-Lock Ball-Style Weld-Mount
Retractable Spring Plungers

A quarter turn of the handle locks these plungers in the retracted position. The smooth ball handle is easy to grip and won't catch on other parts.

L-Handle Weld-Mount Retractable Spring Plungers

An L-handle takes up less space than a T-handle.

Add-a-Knob Weld-Mount Retractable Spring Plungers

Add a knob or handle to the threaded shank.

Plate-Mount Retractable Spring Plungers

Two holes in the plate allow these plungers to be mounted to a flat surface.

Twist-to-Lock Plate-Mount Retractable Spring Plungers

Lock the nose into the retracted position by pulling the knob and rotating it 90°.

Press-Fit Captive-Panel Retractable Spring Plungers

Use an arbor press or similar pressure tool to install these spring plungers into a panel.

Twist-to-Lock Press-Fit Captive-Panel
Retractable Spring Plungers

Lock the nose in the retracted position by pulling the knob and rotating it 90°.

Twist-to-Lock Thread-In Captive-Panel
Retractable Spring Plungers

Lock the nose in the retracted position by pulling the knob and rotating it 90°.

Thread-In Captive-Panel Retractable Spring Plungers

Insert the nose into a panel; then thread on the nut and tighten using an installation wrench.

Long-Nose Spring Plungers

Hex-Drive Long-Nose Spring Plungers

Install with a hex key for more torque than slotted long-nose spring plungers.

Long-Nose Spring Plungers

Install with a driver.

Slotted Long-Nose Spring Plungers

Slotted on both ends for installation with a screwdriver.

Press-Fit Long-Nose Spring Plungers

A flange keeps the plunger from being pushed through a hole when the ball is depressed.

Press-Fit Extra-Long-Nose Spring Plungers

Noses are up to four times longer than standard long-nose press-fit spring plungers.

Long Hex-Nose Spring Plungers

Fasten from the nose end with a wrench for more torque than slotted long-nose spring plungers.

Extra-Long Hex-Nose Spring Plungers

These spring plungers have a nose that is about three-times longer than standard long hex-nose spring plungers.

Weld-Mount Catches for Ball-Nose and Long-Nose Spring Plungers

Weld-Mount Catches for Ball-Nose
and Long-Nose Spring Plungers

Weld these catches in place for a strong permanent hold.

Mounting Bases for Spring Plungers

Mount ball-nose and long-nose spring plungers to fixture surfaces.

Drivers for Spring Plungers

Install spring plungers from the nose end without depressing the nose.

Quick-Release Pins

Ring-Grip Quick-Release Pins

The smooth ring handle on these pins won't catch on parts. A spring-loaded, nonlocking retaining ball pops out when the pin is pushed through a hole, and retracts when the pin is pulled out.

Flat-Head Quick-Release Pins

These pins have a low-profile head, so they won't get knocked out of place. A spring-loaded, nonlocking retaining ball pops out when the pin is pushed through a hole, and retracts when the pin is pulled out.

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.

T-Handle Quick-Release Pins

A T-handle makes these pins easy to grip. A spring-loaded, nonlocking retaining ball pops out when the pin is pushed through a hole, and retracts when the pin is pulled out.

Ball-Grip Quick-Release Pins

A smooth ball handle is easy to grip and won't catch on other parts. A spring-loaded, nonlocking retaining ball pops out when the pin is pushed through a hole, and retracts when the pin is pulled out.

Ring-Grip Shoulder-Style Quick-Release Pins

The smooth ring handle on these pins won't catch on parts. The shoulder keeps a portion of the pin outside the hole and makes them easy to grab.

T-Handle Shoulder-Style Quick-Release Pins

A T-handle makes these pins easy to grip. The shoulder keeps a portion of the pin outside the hole and makes them easy to grab.

Adjustable-Length Locking Quick-Release Pins

These pins adjust to take up play in a system or hold parts in holes of varying thicknesses. Spin the handle up or down, then tighten the locknut to change the length by up to ½”. Pins lock in place until you push the button to release the spring-loaded retaining balls.

Keyed Double-Locking Quick-Release Pins

Use the key to unlock these pins, then press the button to release the spring-loaded retaining balls. Two-step locking prevents accidental removal.

Quick-Release Pins for Access Panels

Attach these pins to a machine cover or access panel, then clip them in to receptacles installed in the enclosure for quick access. Pins lock in place until you release them.

Ball-Nose Spring Plungers

Slotted Ball-Nose Spring Plungers

Press-Fit Ball-Nose Spring Plungers

Flush-Mount Press-Fit Ball-Nose Spring Plungers

Hex-Drive Ball-Nose Spring Plungers

Retractable Long-Nose Spring Plungers

Knob-Style Retractable Spring Plungers

Twist-to-Lock Knob-Style Retractable Spring Plungers

Pull-Ring Retractable Spring Plungers

Twist-to-Lock Pull-Ring Retractable Spring Plungers

Pull-Ring Retractable Spring Plungers with Lanyard

L-Handle Retractable Spring Plungers

Twist-to-Lock L-Handle Retractable Spring Plungers

T-Handle Retractable Spring Plungers

Add-a-Knob Retractable Spring Plungers

Low-Profile Knob-Style RetractableSpring Plungers with Hex Drive

T-Handle Weld-Mount Retractable Spring Plungers

Twist-to-Lock T-Handle Weld-MountRetractable Spring Plungers

Ball-Style Weld-Mount Retractable Spring Plungers

Twist-to-Lock Ball-Style Weld-MountRetractable Spring Plungers

L-Handle Weld-Mount Retractable Spring Plungers

Add-a-Knob Weld-Mount Retractable Spring Plungers

Plate-Mount Retractable Spring Plungers

Twist-to-Lock Plate-Mount Retractable Spring Plungers

Press-Fit Captive-Panel Retractable Spring Plungers

Twist-to-Lock Press-Fit Captive-PanelRetractable Spring Plungers

Twist-to-Lock Thread-In Captive-PanelRetractable Spring Plungers

Thread-In Captive-Panel Retractable Spring Plungers

Long-Nose Spring Plungers

Hex-Drive Long-Nose Spring Plungers

Long-Nose Spring Plungers

Slotted Long-Nose Spring Plungers

Press-Fit Long-Nose Spring Plungers

Press-Fit Extra-Long-Nose Spring Plungers

Long Hex-Nose Spring Plungers

Extra-Long Hex-Nose Spring Plungers

Weld-Mount Catches for Ball-Nose and Long-Nose Spring Plungers

Weld-Mount Catches for Ball-Noseand Long-Nose Spring Plungers

Mounting Bases for Spring Plungers

Mounting Bases for Spring Plungers

Drivers for Spring Plungers

Drivers for Spring Plungers

Quick-Release Pins

Ring-Grip Quick-Release Pins

Flat-Head Quick-Release Pins

Loop-Grip Quick-Release Pins

T-Handle Quick-Release Pins

Ball-Grip Quick-Release Pins

Ring-Grip Shoulder-Style Quick-Release Pins

T-Handle Shoulder-Style Quick-Release Pins

Adjustable-Length Locking Quick-Release Pins

Keyed Double-Locking Quick-Release Pins

Quick-Release Pins for Access Panels

Low-Profile Knob-Style Retractable
Spring Plungers with Hex Drive

Twist-to-Lock T-Handle Weld-Mount
Retractable Spring Plungers

Twist-to-Lock Ball-Style Weld-Mount
Retractable Spring Plungers

Twist-to-Lock Press-Fit Captive-Panel
Retractable Spring Plungers

Twist-to-Lock Thread-In Captive-Panel
Retractable Spring Plungers

Weld-Mount Catches for Ball-Nose
and Long-Nose Spring Plungers