Gibraltar 57185G Threaded Spring Plunger 6-32 Steel

Product Description

The GIBRALTAR 57185G is a threaded spring plunger designed for use in positioning, indexing, and locking applications across industrial and mechanical assemblies. The plunger features a No. 6-32 thread size with a 17/32-inch thread length and a steel body with a Delrin nose. Initial end force is 0.5 pounds and final end force is 1.5 pounds, making it suited for light-duty spring-loaded retention tasks. A built-in locking element secures the plunger in place after installation. Machinists, toolmakers, and assembly technicians install this type of component in jigs, fixtures, and precision mechanical devices.

This spring plunger is appropriate for light industrial applications requiring repeatable positioning or detent action. Typical installations include machine tool fixtures, alignment jigs, and mechanical panel assemblies where a small-diameter, standard-length plunger with a non-marring Delrin nose is required. The locking element eliminates the need for thread-locking compounds in most applications. Sold individually as a single-piece unit.

Key Features

• No. 6-32 thread size with 17/32-inch thread and body length for compact installation
• Steel body construction for durability in industrial environments
• Delrin nose material resists marring on mating surfaces
• Built-in locking element secures plunger position without adhesives
• 0.5 pounds initial end force and 1.5 pounds final end force for light-duty detent action
• Maximum plunger diameter of 0.045 inches with 1/16-inch projection

Compatibility

Designed as a standard-thread spring plunger for use in mechanical assemblies, jigs, and fixtures that accept a No. 6-32 threaded insert with a 17/32-inch thread length.

Installation Notes

Installation is typically performed by machinists or mechanical assemblers using a hex key sized to the 1/16-inch hex drive. Ensure the mating threaded hole is clean and correctly tapped to No. 6-32 specification before installation. The integrated locking element engages the threads during installation to resist back-out — no additional thread-locking compound is required. Do not overtighten, as this may damage the plunger body or locking element.