Vlier SSFR375P Locking L Handle Spring Plunger 3/8-16

Product Description

The VLIER SSFR375P is a stainless steel locking L-handle spring plunger designed for positioning, indexing, and locking applications in industrial and mechanical assemblies. The plunger features a 3/8-16 thread size with a 1.18-inch thread length and a 2-inch body length. Spring force ranges from 0.75 pounds initial to 3.75 pounds final end force, providing controlled resistance suited to light-duty indexing tasks. The locking element secures the plunger in the retracted position, preventing unintended engagement during assembly or adjustment. Machinists, maintenance technicians, and mechanical assemblers install this type of component in fixtures, jigs, and positioning equipment.

The SSFR375P is suited for use in fixtures, tooling plates, machine guards, and mechanical assemblies where repeatable positioning or panel locking is required. The stainless steel construction makes it appropriate for environments where corrosion resistance matters, such as food-processing equipment, wet industrial environments, or outdoor mechanical enclosures. The L-handle design allows manual retraction and locking without additional tools.

Key Features

• Locking element holds plunger retracted for hands-free positioning
• Stainless steel handle and body for corrosion resistance
• 3/8-16 thread for standard installation in tapped holes
• 0.25-inch plunger diameter with 0.56-inch projection at full extension
• Spring force range: 0.75 pounds initial to 3.75 pounds final end force
• Tool-free manual retraction via L-handle design

Compatibility

Designed as a direct-fit replacement or new-installation spring plunger for machinery, fixtures, and assemblies requiring a 3/8-16 tapped hole and a locking L-handle plunger configuration.

Installation Notes

Installation requires a properly tapped 3/8-16 through or blind hole in the mating component. Thread the plunger body into the tapped hole by hand before tightening with the appropriate hex wrench to the hex flat sized at 0.38 inches. Power down or de-energize any associated equipment before servicing plunger assemblies mounted in active machinery. Do not overtighten, as this can distort the thread or affect spring function.