Gibraltar SWPN-6A-PT-G Threaded Spring Plunger 3/8-16

Product Description

The GIBRALTAR SWPN-6A-PT-G is a threaded spring plunger designed for indexing, positioning, and light clamping applications in mechanical assemblies. It features a 3/8-16 thread with a 1-1/8 inch thread length and a phenolic nose that delivers controlled end force without marring mating surfaces. Initial end force is 2.8 pounds and final end force is 7.2 pounds, making it suitable for repeatable positioning tasks. The steel body provides durability under cyclic loading. A locking element is included to secure the plunger body in tapped holes and prevent back-out during operation. This hardware is commonly installed by machinists, mechanical assemblers, and maintenance technicians.

This spring plunger is suited for use in fixtures, jigs, tooling plates, and machine assemblies where a spring-loaded nose is needed to locate or retain a workpiece or component. The phenolic nose material resists wear and protects delicate mating surfaces. With a standard plunger length type and a 3/16 inch projection, it fits typical tapped-hole installations in steel or aluminum assemblies. It ships as a single unit and is ordered individually.

Key Features

• 3/8-16 thread size with 1-1/8 inch thread length for standard tapped-hole installation
• Phenolic nose resists wear and prevents surface damage on mating components
• Steel body provides strength and durability under repeated cycling
• Locking element prevents back-out and maintains plunger position in assembly
• 2.8 pound initial end force and 7.2 pound final end force for reliable positioning
• 3/16 inch plunger projection suitable for standard indexing and locating applications

Compatibility

Designed as a standard-thread spring plunger for use in tapped holes in mechanical fixtures, jigs, tooling, and general industrial assemblies requiring spring-loaded positioning or indexing.

Installation Notes

Installation requires a properly tapped 3/8-16 hole in the mating component. De-energize or lock out any machinery before installing or servicing spring plungers in live assemblies. Use an appropriate hex wrench or spanner tool on the body to thread the plunger to the desired depth. Engage the locking element fully to prevent rotation or back-out under vibration or cyclic loading.