Gibraltar HDLS-2-PT-G Locking Knob Handle Plunger

Product Description

The GIBRALTAR HDLS-2-PT-G is a locking knob handle plunger designed for precision indexing and positioning applications in industrial and mechanical assemblies. Featuring a countersunk knob style and a 5/16-18 thread size with a 0.53-inch thread length, this plunger delivers controlled spring force ranging from 1 pound initial end force to 6 pounds final end force. The maximum plunger diameter measures 0.154 inches, and the plunger projection is 0.187 inches. Constructed from steel with a zinc gold chromate finish, this plunger is built for durability in demanding environments. The locking element keeps the plunger retracted when needed, improving workflow efficiency in repetitive assembly operations.

This plunger is suited for use in jigs, fixtures, machine tool components, and similar mechanical assemblies where positive locking and repeatable positioning are required. It is appropriate for light industrial, manufacturing, and maintenance environments. The countersunk knob design allows for tool-free operation, and the locking feature enables the plunger to be held in the retracted position during part loading or changeover. Mechanical assemblers and maintenance technicians working on precision equipment are the typical installers of this component.

Key Features

• Locking plunger type holds plunger retracted for hands-free operation during assembly
• Countersunk knob style allows convenient tool-free adjustment
• 5/16-18 thread size with 0.53-inch thread length for secure fastening in standard tapped holes
• Spring end force range from 1 pound initial to 6 pounds final for controlled indexing
• Steel construction with zinc gold chromate finish for corrosion resistance
• Compact plunger length of 1.07 inches and 0.875-inch head diameter for space-constrained installations

Compatibility

Designed as an OEM-style replacement or new installation component for fixtures, jigs, and mechanical assemblies requiring a 5/16-18 threaded locking handle plunger with a countersunk knob.

Installation Notes

Installation is performed by mechanical assemblers or maintenance technicians. Thread the plunger into a pre-tapped 5/16-18 hole and secure to the desired depth before locking. Ensure the mating assembly is depressurized or de-energized before servicing any indexed or spring-loaded components. Use a 1/8-inch hex key for adjustment if required by the mounting configuration.