Gibraltar 34254 Knob Handle Plunger 5/8-11 Thread

Product Description

The GIBRALTAR 34254 is a non-locking knob handle plunger designed for use in positioning, indexing, and clamping applications across industrial and mechanical assemblies. It features a 5/8-11 inch thread size with a 1 inch thread length and a knobless threaded stud configuration, allowing the operator or tooling to engage the stud directly. The plunger delivers an initial end force of 5 pounds and a final end force of 10 pounds, with a maximum plunger diameter of 0.373 inches and a plunger projection of 0.3125 inches. Constructed from steel with a zinc-plated finish for corrosion resistance, this plunger is a standard fit for machine builders, maintenance technicians, and industrial equipment assemblers.

This plunger suits light-duty positioning tasks in jigs, fixtures, machine guards, and enclosures where a threaded stud interface is preferred over a traditional knob. The knobless threaded stud style accepts a separate handle or actuation element at installation, making it flexible for custom fixture builds. A locking element is incorporated into the body, adding positive retention when the plunger is engaged. The body length of 1.3125 inches and length under head of 0.312 inches fit standard panel and bracket thicknesses common in fabricated steel assemblies.

Key Features

• Non-locking plunger type with integrated locking element for controlled retention
• 5/8-11 inch external thread with 1 inch thread length for secure panel mounting
• Knobless threaded stud style accepts a 1/2-13 stud thread for custom handle attachment
• Initial end force of 5 pounds rising to a final end force of 10 pounds
• Steel construction with zinc-plated finish for corrosion resistance in shop environments
• Plunger diameter tolerance held to plus 0.001 inches for consistent indexing performance

Compatibility

Designed as an OEM-style or aftermarket replacement plunger for industrial fixtures, jigs, and machine assemblies requiring a 5/8-11 threaded body with a knobless stud interface.

Installation Notes

Installation is typically performed by maintenance technicians or machine builders using standard hand tools. Power down or de-energize any equipment before accessing the assembly where this plunger will be installed. Thread the body into the prepared panel hole to the specified thread engagement and verify the plunger projection and force are correct for the application before returning the assembly to service. Follow applicable workplace safety and machinery guarding standards during installation.