Gibraltar SWN10-6-G Threaded Spring Plunger 3/8-16

Product Description

The GIBRALTAR SWN10-6-G is a standard threaded spring plunger used in workholding, fixturing, and positioning applications. The steel body houses a spring-loaded nylon nose that delivers controlled end force for locating, indexing, and light-duty retention tasks. With a 3/8-16 thread and 1-1/8 inch thread length, it installs directly into tapped holes in fixtures, jigs, and machine tooling. Initial end force is 5.5 pounds and final end force is 14.5 pounds, making it suited for applications that require repeatable, low-to-moderate spring resistance without metal-to-metal contact at the nose.

This spring plunger fits into standard workholding and positioning setups found in manufacturing, machining, and assembly environments. It is typically installed in fixture plates, tombstones, vise jaws, and custom jigs where a component or workpiece must be lightly located or held in position. The nylon nose protects sensitive workpiece surfaces from marring. This part ships individually and is compatible with any fixture or component with a standard 3/8-16 tapped hole at the appropriate depth.

Key Features

• 3/8-16 thread size with 1-1/8 inch thread length for straightforward installation in standard tapped holes
• Steel body provides durable, rigid housing suitable for industrial workholding environments
• Nylon nose protects workpiece and mating surfaces from scratching or galling
• 5.5 pound initial end force and 14.5 pound final end force for consistent, repeatable spring resistance
• Maximum plunger diameter of 0.187 inches with 3/16 inch projection beyond the body face
• No locking element - standard configuration for applications not requiring thread-locking compound retention

Compatibility

Designed as a standard threaded spring plunger for use in any fixture, jig, or positioning component with a 3/8-16 tapped through-hole or blind hole of sufficient depth to accept the 1-1/8 inch thread length.

Installation Notes

Installation is performed by threading the plunger body into a pre-tapped 3/8-16 hole using a hex key or spanner wrench sized for the body head. Ensure the tapped hole is clean and free of chips or debris before installation. No locking element is included, so apply thread-locking compound if retention under vibration is required. Always de-energize or lock out the fixture or machine before servicing or replacing spring plungers in active workholding setups.