Gibraltar SPR58-PT-G Pull Ring Plunger 5/8-11 Thread

Product Description

The GIBRALTAR SPR58-PT-G is a stainless steel pull ring plunger designed for indexing, positioning, and locking applications in mechanical assemblies. It features a 5/8-11 thread size with a 0.56-inch thread length and a 0.38-inch diameter plunger that projects 0.44 inches. The spring-loaded mechanism delivers 1.25 pounds of initial end force and ramps to 5 pounds of final end force, providing positive, repeatable positioning. A pull ring allows manual retraction of the plunger without tools. The body is 1 inch long, and the hex size measures 0.62 inches for wrench installation. This part is used by machinists, millwrights, and industrial maintenance technicians.

The SPR58-PT-G suits applications where a panel, fixture, jig, or machine component needs to be held in a discrete indexed position. The pull ring allows quick-release retraction when repositioning is needed. The stainless steel construction makes it appropriate for environments where corrosion resistance is required. The non-locking plunger style means the plunger returns to the extended position automatically when released. It is sold individually and is a direct-replacement or new-install option for 5/8-11 threaded panel and fixture assemblies.

Key Features

• 5/8-11 thread for direct installation into standard threaded bores
• Stainless steel construction for corrosion resistance
• Pull ring allows manual plunger retraction without auxiliary tools
• 1.25-pound initial end force to 5-pound final end force for firm positive indexing
• Non-locking plunger returns to extended position automatically on release
• 0.62-inch hex head for wrench installation and controlled torque

Compatibility

Designed as a direct-fit pull ring plunger for mechanical fixtures, jigs, panels, and assemblies with a standard 5/8-11 threaded bore requiring a non-locking spring plunger with pull ring retraction.

Installation Notes

Installation is performed by machinists or industrial maintenance technicians using a standard open-end or box wrench on the 0.62-inch hex head. De-energize and lock out any machine or assembly before installing or servicing this component. Verify that the mating bore thread is clean and undamaged before threading in the plunger. Do not overtighten, as excessive torque can damage the spring mechanism or thread engagement.