Gibraltar SW10-12-G Threaded Spring Plunger 3/4-10 Steel

Product Description

The GIBRALTAR SW10-12-G is a standard-length threaded spring plunger designed for indexing, positioning, and light clamping applications in industrial and mechanical assemblies. It features a 3/4-10 thread size with a 1-3/4 inch thread length and a maximum plunger diameter of 0.374 inches. The plunger projection measures 5/16 inches (0.3125 inches decimal). Both the body and nose are constructed from steel, providing durability in demanding shop and production environments. Initial end force is 6.7 pounds and final end force is 37.3 pounds, making it suitable for applications requiring a firm, spring-loaded hold without a locking element.

This spring plunger is used in jigs, fixtures, tooling plates, and machine components where repeatable part location or detent action is required. It threads directly into a tapped hole and applies consistent spring force against a mating surface or detent feature. The absence of a locking element means the plunger can be adjusted or removed without special tools, which is useful in setups that require periodic repositioning. Typical users include machinists, tool and die makers, and mechanical assembly technicians working in light to medium industrial settings.

Key Features

• 3/4-10 thread size with 1-3/4 inch thread length for secure engagement in tapped bores
• Steel body and steel nose for wear resistance in production environments
• 6.7 lb initial end force and 37.3 lb final end force for firm spring-loaded positioning
• 0.374 inch maximum plunger diameter with 5/16 inch projection
• No locking element for straightforward installation and adjustment
• Standard plunger length type for broad compatibility with common tapped hole configurations

Compatibility

Designed as an OEM-style replacement or direct-fit component for industrial jigs, fixtures, and tooling assemblies requiring a 3/4-10 threaded spring plunger with standard projection.

Installation Notes

Installation is performed by threading the plunger into a properly tapped 3/4-10 hole using a hex key or spanner wrench suited to the body. Ensure the mating bore is clean and free of debris before installation to prevent damage to the plunger nose or spring mechanism. Do not overtighten, as this can compress the spring beyond its rated travel and reduce end force accuracy. De-energize or lock out any machinery before servicing fixtures or tooling plates that contain spring plungers.