Gibraltar SWN10-4A-PT-G Threaded Spring Plunger 1/4-20

Product Description

The GIBRALTAR SWN10-4A-PT-G is a threaded spring plunger designed for indexing, positioning, and light-duty holding applications in mechanical assemblies. It features a 1/4-20 thread with a 1 inch thread length and a standard plunger projection of 3/16 inches. The steel body provides durability in industrial and trade environments, while the nylon nose reduces surface marring on contact points. A built-in locking element secures the plunger in place once installed, preventing loosening from vibration. Initial end force is 1 pound, with a final end force of 4 pounds. This part is typically installed by machinists, maintenance technicians, and assembly professionals working with jigs, fixtures, and mechanical panels.

This spring plunger is suited for light-load positioning tasks in machine tool fixtures, enclosures, sliding panels, and general mechanical assemblies. The 1/4-20 thread size fits standard tapped holes common across industrial equipment and fabricated assemblies. The nylon nose tip protects mating surfaces from scoring or marking during repeated contact cycles. It is appropriate for both new assembly builds and field replacements where a standard-thread spring plunger with locking capability is required.

Key Features

• 1/4-20 thread with 1 inch thread length for standard tapped-hole installation
• 3/16 inch plunger projection for controlled engagement depth
• Steel body construction for strength and wear resistance
• Nylon nose material minimizes surface damage on contact
• Locking element prevents back-out under vibration
• 1 pound initial end force and 4 pound final end force for light-duty positioning

Compatibility

Designed as a standard-thread spring plunger replacement or new-installation component for mechanical assemblies, fixtures, and enclosures requiring a 1/4-20 threaded spring plunger with locking element.

Installation Notes

Installation is performed by threading the plunger into a pre-tapped 1/4-20 hole using an appropriate wrench or driver on the body flats. Ensure the receiving hole is clean and free of debris before installation. The locking element should be engaged to the specified torque range recommended for the assembly — do not overtighten, as this can damage the locking feature or body. Power down or de-energize any equipment before servicing assemblies that contain this component.