Vlier FR625P Locking L Handle Spring Plunger 5/8-11

Product Description

The VLIER FR625P is a locking L handle spring plunger designed for positioning, indexing, and locking applications in industrial and mechanical assemblies. It features a 5/8-11 thread size with a thread length of 1.82 inches and a body length of 3.05 inches. The plunger diameter is 0.38 inches with a projection of 1 inch. Initial end force is 1 pound, ramping to a final end force of 5 pounds. The locking element engages when the handle is rotated, securing the plunger in the retracted position to prevent unintended extension. Installation is performed by machinists, toolmakers, and maintenance technicians working on fixtures, jigs, and precision assemblies.

The FR625P is suited for use in production fixtures, machine tools, and mechanical assemblies where controlled, repeatable plunger engagement is required. The L handle configuration allows manual retraction and locking without additional tooling, making it practical in applications where frequent adjustment or repositioning is needed. It is appropriate for both light-duty and moderate-load indexing scenarios in industrial environments.

Key Features

• Locking element retracts and holds the plunger to prevent unintended engagement
• 5/8-11 thread size with 1.82 inch thread length for secure mounting
• Steel handle construction for durability in industrial use
• 1 pound initial to 5 pound final end force for controlled indexing loads
• L handle design allows tool-free manual retraction and locking
• 0.38 inch plunger diameter with 1 inch projection for consistent positioning depth

Compatibility

Designed as a direct-install spring plunger for fixtures, jigs, and mechanical assemblies requiring a 5/8-11 threaded locking plunger with an L handle configuration.

Installation Notes

Installation is performed by threading the FR625P into a tapped 5/8-11 hole in the fixture or assembly body. Disengage and de-energize any powered equipment before servicing assemblies that incorporate this plunger. Use a wrench on the 0.62 inch hex to tighten to the assembly without over-torquing the threads. Verify plunger projection and locking function before returning the assembly to service.