Vlier SSFRS500 Locking L Handle Spring Plunger 1/2-13

Product Description

The VLIER SSFRS500 is a stainless steel locking L-handle spring plunger designed for precision positioning, indexing, and holding applications in industrial and mechanical assemblies. It features a 1/2-13 thread size with a 0.85-inch thread length and a 0.31-inch plunger diameter. The spring delivers 0.5 pounds of initial end force and 2 pounds of final end force, providing reliable, repeatable hold under load. The L-handle design allows tool-free adjustment and controlled locking without additional hardware. Machinists, assemblers, and maintenance technicians working with jigs, fixtures, and light machinery are the primary installers.

This spring plunger is suited for use in machine tool fixtures, workholding devices, tooling plates, and industrial equipment where repeatable positioning is required. The stainless steel construction makes it appropriate for environments with exposure to moisture, cleaning agents, or moderate corrosive conditions. The locking plunger type keeps the plunger retracted when needed, preventing unintended engagement during part loading or repositioning. It installs directly into a tapped hole and requires no additional hardware beyond the threaded body itself.

Key Features

• Locking L-handle design allows tool-free plunger retraction and release
• Stainless steel handle and body for corrosion-resistant performance
• 0.5 pound initial end force and 2 pound final end force for controlled positioning hold
• 1/2-13 thread size with 0.85 inch thread length for standard tapped-hole installation
• 0.31 inch plunger diameter with 0.4 inch plunger projection
• Compact 1.5 inch body length with 1 inch length under head

Compatibility

Designed as an OEM-style replacement or direct-fit spring plunger for industrial fixtures and assemblies requiring a 1/2-13 threaded locking L-handle plunger with stainless steel construction.

Installation Notes

Installation requires a properly tapped 1/2-13 threaded hole in the mating component. Ensure the thread is clean and free of debris before installation. De-energize or lock out any associated machinery before servicing or replacing spring plungers in active fixtures. Do not overtighten, as this may damage the threaded body or affect plunger travel.