Steel Ball Lock Pins | McMaster-Carr

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241 Products

Quick-Release Pins

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.

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.

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.

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.

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.

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.

Spring Plungers

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.

Slotted Ball-Nose Spring Plungers

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

Hex-Drive Ball-Nose Spring Plungers

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

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.

Clamping and Workholding

Ball-Lock Quick-Change Fixture Clamps

Build these components into fixture plates, machine subplates, and tombstones for quick changes. The system clamps and locates at the same time for accurate positioning with repeatability of ±0.0005".

Fixturing Tables

Add components such as clamps, brackets, stops, rests, mounting plates, fixturing squares, risers, and V-blocks to build fixtures for welding and assembly.