Gibraltar 34052 Locking Plunger Threaded Stud 1/4-20

Product Description

The GIBRALTAR 34052 is a locking knob handle plunger with a knobless threaded stud configuration, designed for use in indexing, positioning, and clamping applications across industrial and mechanical assemblies. It features a 1/4-20 thread with a 0.5 inch thread length and a maximum plunger diameter of 0.124 inches. The plunger delivers an initial end force of 0.5 pounds and a final end force of 2.5 pounds, providing reliable spring-loaded retention. A built-in locking element holds the plunger in the retracted position when needed. This part is installed by maintenance technicians, machinists, and mechanical assemblers working on fixtures, jigs, and precision equipment.

The GIBRALTAR 34052 suits applications where a compact, spring-loaded plunger is needed for light-duty positioning or locking in tight assemblies. The knobless threaded stud design allows the plunger to be actuated or adjusted with a separate knob or tool, making it suitable for installations where clearance is limited or a flush-mount profile is preferred. Typical uses include machine tool fixtures, workholding devices, enclosures, and industrial equipment panels requiring repeatable indexed positioning.

Key Features

• Locking plunger holds retracted position via integrated locking element
• Knobless threaded stud design for low-profile or tool-actuated installations
• 1/4-20 external thread with 0.5 inch thread length for easy mounting
• Plunger projection of 0.125 inches with a 1.062 inch total plunger length
• Spring end force range of 0.5 to 2.5 pounds for light-duty indexing loads
• Stud thread size 10-32 for attachment of a separate knob or actuator

Compatibility

Designed as a standard replacement or new-installation locking plunger for industrial fixtures, jigs, machine tool assemblies, and mechanical enclosures requiring a 1/4-20 threaded locking spring plunger with a knobless stud configuration.

Installation Notes

Installation is performed by maintenance technicians or machinists using standard hand tools. Thread the plunger body into a tapped 1/4-20 hole and tighten to the appropriate engagement depth using the length under head or shoulder dimension of 0.625 inches as a reference. De-energize or lock out any machine before servicing plunger assemblies in live equipment. Do not exceed the rated end force by substituting springs or modifying the plunger body.