3/8"-16 Plungers | McMaster-Carr

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Stainless Steel

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Spring Plunger Nose Type

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Without Threadlocker

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Stainless Steel

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Spring Plunger Driver

Compressed Nose Force

Less than 10 lbf

10 lbf to 19.9 lbf

20 lbf to 24.9 lbf

Extended Nose Force

Less than 1 lbf

1 lbf to 1.99 lbf

2 lbf to 4.99 lbf

5 lbf to 9.99 lbf

Plunger Locking Type

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Corrosion Resistant

REACH

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DFARS Specialty Metals

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150 Products

Spring Plungers

Knob-Grip Retractable Spring Plungers

Knob-Grip Retractable Spring Plungers

Tug the knob to manually retract the nose and make controlled adjustments

Ball-Nose Spring Plungers

Ball-Nose Spring Plungers

Thread into holes to align, position, and lock moving parts during machining and assembly

Ring-Grip Retractable Spring Plungers

Ring-Grip Retractable Spring Plungers

Attach a lanyard to prevent accidental drops

L-Handle Retractable Spring Plungers

L-Handle Retractable Spring Plungers

Take up less space than a T-handle and swivel to avoid obstacles

Long-Nose Spring Plungers

Long-Nose Spring Plungers

Handle heavier side forces than ball-nose spring plungers to lock large moving parts

Add-a-Handle Weld-On Retractable Spring Plungers

Add-a-Handle Weld-On Retractable Spring Plungers

Thread on the handle of your choice and weld to metal surfaces for extra security

Add-a-Handle Retractable Spring Plungers

Add-a-Handle Retractable Spring Plungers

Thread on the handle of your choice to control how you retract the nose

T-Handle Retractable Spring Plungers

T-Handle Retractable Spring Plungers

The widest grip of all handles for the most leverage

Low-Profile Knob-Grip Retractable Spring Plungers

Tighten with a hex key instead of your fingers to install in in tight spaces

Other Products

Spring Plunger Drivers

Spring Plunger Drivers

Install spring plungers from the nose end without depressing the nose

Clamps

Hold workpieces securely in place

Quick-Release Pin Receptacles

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

Spring Plunger Mounts

Spring Plunger Mounts

Secure ball-nose and long-nose spring plungers to fixture surfaces

Clamp Holding Screws

Clamp Holding Screws

Replace worn holding screws in clamps or customize with different sizes or styles

Quick-Release Pins

Quick-Release Pins

Fasten or remove components on equipment with a spring-loaded retaining ball

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