Vlier SSFR500 Locking L Handle Spring Plunger 1/2-13

Product Description

The VLIER SSFR500 is a locking L handle spring plunger designed for precision positioning and holding applications in industrial assemblies. It features a 1/2-13 thread size with a thread length of 1.1 inches and a plunger diameter of 0.31 inches. The spring mechanism delivers an initial end force of 1 pound, building to a final end force of 5 pounds, making it suitable for moderate-retention indexing and detent work. The body, handle, and core components are constructed from stainless steel for corrosion resistance. Machinists, toolmakers, and maintenance technicians install this type of plunger into threaded holes in fixtures, jigs, enclosures, and machine frames.

This plunger fits standard industrial and manufacturing applications where a repeatable, lockable positioning point is required. The L handle allows manual engagement and locking without additional tools, making it practical for quick-access panels, sliding fixtures, and adjustable machine stops. It is suited for both light production tooling and maintenance environments where stainless steel construction is preferred for wash-down or corrosion-prone conditions.

Key Features

• Locking L handle design allows tool-free manual operation and positive lock-out of the plunger
• 1/2-13 thread size with 1.1 inches of thread length for secure installation in standard threaded bores
• Initial end force of 1 pound building to a final end force of 5 pounds for consistent detent retention
• Stainless steel handle and body construction for corrosion resistance in demanding environments
• Plunger projection of 0.75 inches provides reliable engagement depth in mating detent holes
• Compact body length of 2.11 inches suits space-constrained fixture and panel installations

Compatibility

Designed as an OEM-style replacement or direct-install spring plunger for industrial fixtures, jigs, and machine assemblies requiring a 1/2-13 threaded locking plunger with L handle actuation.

Installation Notes

Installation is performed by threading the SSFR500 into a pre-tapped 1/2-13 hole in the mating fixture or panel. Power down or de-energize any associated machine before servicing components. A hex wrench sized to the 0.5 inch hex is used to set final installed depth and torque. Do not over-torque into soft or thin-wall threaded holes; use thread-locking compound only if specified by the fixture design documentation.