Vlier FRM12P Locking L Handle Plunger M12x1.75 Steel

Product Description

The VLIER FRM12P is a locking L-handle plunger designed for industrial positioning and indexing applications. It features an M12x1.75 threaded body with a 1.11-inch thread length and a 7mm plunger diameter. The spring-loaded plunger delivers an initial end force of 4.5 N and a final end force of 22.3 N, providing reliable hold-down pressure in tooling fixtures, jigs, and machine components. The locking element locks the plunger in the retracted position, freeing both hands during workpiece loading. Constructed from steel, this plunger is suited for demanding shop-floor environments where a durable, repeatable positioning component is required. Licensed machinists and machine builders typically install and service this type of hardware.

The FRM12P fits applications in manufacturing fixtures, assembly jigs, and machine tool setups where repeatable indexing or part retention is needed. The locking L-handle design allows the plunger to be retracted and held out of engagement without spring pressure acting on the operator. This makes it practical in high-cycle production environments and custom fabrication setups where access to the work area must remain clear. The M12x1.75 thread is compatible with standard metric tapped holes in steel and aluminum fixture plates.

Key Features

• Locking plunger retracts and holds in the disengaged position for hands-free loading
• M12x1.75 thread with 1.11-inch thread length for secure installation in metric fixture plates
• 7mm plunger diameter with 19mm plunger projection for positive part engagement
• Spring force range of 4.5 N initial to 22.3 N final end force
• Steel construction for durability in industrial shop environments
• L-handle design with 25.4mm handle length for easy manual operation

Compatibility

Designed as an OEM-style replacement or direct-fit component for metric fixture plates and machine tool assemblies using M12x1.75 threaded locking plunger positions.

Installation Notes

Installation is performed by threading the FRM12P into a pre-tapped M12x1.75 metric hole in the fixture body. Shut down and de-energize any associated machinery before servicing plunger hardware. Use appropriate metric wrenches on the 12mm hex to achieve proper seating without overtightening. Verify plunger projection and locking function before returning the fixture or machine to service.