Gibraltar SWPN-10-PT-G Threaded Spring Plunger 5/8-11

Product Description

The GIBRALTAR SWPN-10-PT-G is a standard threaded spring plunger designed to provide repeatable positioning, indexing, and light-duty locking in mechanical assemblies. The steel body houses a phenolic-nosed plunger that delivers 3.5 pounds of initial end force and 10.5 pounds of final end force, making it suitable for applications requiring controlled, spring-loaded contact without damaging mating surfaces. A locking element is included, securing the plunger in position once threaded into the receiving hole. Machinists, tool-and-die builders, and industrial maintenance technicians install this component in fixtures, jigs, and production tooling where consistent plunger engagement is required.

This spring plunger is used in standard 5/8-11 threaded holes with a 1-1/2 inch thread engagement length. The phenolic nose protects delicate or finished workpiece surfaces during contact. Typical applications include fixture locating, detent positioning, and light panel or door retention in industrial equipment, machine tools, and fabricated assemblies. The 5/16 inch projection provides adequate nose travel for most standard indexing and positioning tasks in these environments.

Key Features

• Steel body construction for durability in industrial environments
• Phenolic nose material protects mating surfaces from scoring or wear
• 3.5 lb initial end force and 10.5 lb final end force for controlled spring resistance
• Integrated locking element secures plunger depth after installation
• Standard 5/8-11 thread for compatibility with common tapped hole patterns
• 5/16 inch plunger projection provides reliable detent or locating travel

Compatibility

Designed for installation in any 5/8-11 tapped hole requiring a standard-length threaded spring plunger with a phenolic nose and steel body.

Installation Notes

Installation requires a 5/8-11 tapped through-hole or blind hole of sufficient depth to accept the 1-1/2 inch thread length. Thread the plunger in by hand first, then use an appropriate spanner wrench or pin wrench on the body to achieve final seating; do not use pliers directly on the body finish. Engage the locking element only after the plunger is positioned at the correct depth. Ensure the mating assembly is de-energized and free of movement before servicing spring plungers in live fixtures or tooling.