Vlier FRN625 L Handle Spring Plunger 5/8-11 Thread

Product Description

The VLIER FRN625 is a non-locking L handle spring plunger designed for indexing, positioning, and light-duty retention applications in industrial and mechanical assemblies. The plunger features a 5/8-11 threaded body with a 1.82-inch thread length, allowing installation into tapped holes in fixtures, jigs, tooling plates, and machine components. The spring delivers 1 pound of initial end force rising to 5 pounds of final end force, providing controlled, repeatable engagement. The 0.38-inch diameter plunger projects 1 inch from the body face. The L-shaped steel handle allows manual retraction without additional tools. Licensed machinists, toolmakers, and industrial maintenance technicians are the primary installers.

The FRN625 is suited for use in manufacturing fixtures, assembly jigs, tool plates, and any mechanical setup that requires repeatable manual positioning or light-duty latch retention. The non-locking design allows the plunger to retract freely under load, making it appropriate for quick-change tooling and indexed positioning applications where the component must release without requiring the operator to manually withdraw the plunger first. The L handle provides a low-profile grip point for environments where clearance around the installation point is limited.

Key Features

• 5/8-11 thread size fits standard tapped holes in tooling plates and fixtures
• Non-locking plunger retracts freely under load for quick-release applications
• Spring force range of 1 pound initial to 5 pounds final provides controlled engagement
• L-shaped steel handle allows tool-free manual retraction
• 1-inch plunger projection provides positive engagement depth
• 3.05-inch body length with 2-inch length under head for predictable installed depth

Compatibility

Designed as an OEM-style replacement or direct-fit component for industrial fixtures, jigs, and tooling assemblies that require a 5/8-11 threaded non-locking spring plunger with an L handle.

Installation Notes

Installation requires a properly tapped 5/8-11 hole in the receiving component. Thread the plunger body in by hand using the L handle, then tighten to the desired position using the 0.62-inch hex flat for wrench engagement. Always verify that the plunger projection and body length are compatible with the available clearance in the assembly before installing. Lockout and de-energize any machine before servicing or replacing plungers in powered equipment.