Acetal Clamping Pins | McMaster-Carr

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295 Products

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°.

Twist-to-Lock Knob-Style
Retractable Spring Plungers

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

Knob-Style Retractable Spring Plungers

Retract the nose by pulling the knob.

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

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.

Press-Fit Long-Nose Spring Plungers

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

Slotted Long-Nose Spring Plungers

Slotted on both ends for installation with a screwdriver.

Long-Nose Spring Plungers

Install with a driver.

Hex-Drive Long-Nose Spring Plungers

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

Clamping and Workholding

Screw-Mount Locating and Support Buttons

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Mount through the counterbored hole with a socket head cap screw to support and position workpieces and fixtures from the bottom or side.

Spring-Loaded Guide Plungers

As the face of these plungers is pushed in, the internal spring applies outward pressure to hold a workpiece in position against stops and rails.

Inspection and Measuring Fixturing

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Use these components in coordinate measuring machine (CMM) applications to raise a workpiece and reliably position it on a fixture plate with ¼"-20 holes.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)