Gibraltar 34254SS Non-locking Knob Plunger 5/8-11

Product Description

The GIBRALTAR 34254SS is a non-locking knob-style plunger with a threaded stud body, designed for use in positioning, indexing, and workholding applications across industrial and mechanical assemblies. The plunger features a 5/8-11 thread size, a 1-inch thread length, and a maximum plunger diameter of 0.373 inches. Spring end force ranges from 5 pounds initial to 10 pounds final, making it suitable for moderate-resistance indexing tasks. The body is constructed from stainless steel with a zinc-plated finish and measures 1.3125 inches in body length. Installation and adjustment are typically performed by maintenance technicians, millwrights, or mechanical assemblers working on fixtures, jigs, and positioning equipment.

This plunger is suited for use in industrial fixtures, machine tool setups, and mechanical assemblies where repeatable positioning or detent action is required. The knobless threaded stud configuration allows the plunger to be installed flush or recessed into a housing, with the stud end used for securing or adjusting position. The 5/16-inch plunger projection provides a defined stroke travel within the assembly. This style is commonly used in manufacturing, tooling, and general industrial maintenance environments.

Key Features

• Non-locking plunger type with 5 pound initial end force and 10 pound final end force
• 5/8-11 external thread with 1-inch thread length for secure mounting
• Knobless threaded stud configuration with 1/2-13 stud thread size
• Stainless steel construction with zinc-plated finish for corrosion resistance
• Maximum plunger diameter of 0.373 inches with a tolerance of plus 0.001 inches
• Plunger projection of 0.3125 inches and overall plunger length of 2.186 inches

Compatibility

Designed as an OEM-style replacement or direct-fit component for industrial fixtures, jigs, and mechanical assemblies requiring a 5/8-11 threaded non-locking plunger with a knobless stud body.

Installation Notes

Installation is typically performed by a millwright, maintenance technician, or mechanical assembler. De-energize and lock out any machinery before servicing plunger assemblies in active equipment. Thread engagement should be verified against the mating housing to ensure full thread contact without bottoming. Do not exceed the rated end force range when selecting this plunger for a given application.