Gibraltar 57005G Threaded Spring Plunger 1/4-20 Steel

Product Description

The GIBRALTAR 57005G is a standard threaded spring plunger designed for indexing, positioning, and light-duty locking applications in mechanical assemblies. It features a 1/4-20 thread size with a 1 inch thread length and a maximum plunger diameter of 0.118 inches. The plunger delivers 3 pounds of initial end force and 13 pounds of final end force, making it suitable for controlled-resistance positioning tasks. The body and nose are both steel construction with a black finish. A locking element is included to secure the plunger in its installed position. This hardware component is typically installed by machine builders, maintenance technicians, and tooling specialists working on jigs, fixtures, and mechanical positioning systems.

The GIBRALTAR 57005G is used in industrial and light manufacturing environments where repeatable part positioning or spring-loaded detent action is required. Common applications include fixture plates, machine tool assemblies, cabinet hardware, and any assembly where a spring-loaded ball or nose must register into a detent. The 3/16 inch projection provides a defined engagement depth suited to shallow-detent designs. This plunger is sold individually and installs into a standard tapped hole.

Key Features

• 1/4-20 thread size with 1 inch thread length for standard tapped-hole installation
• 3 pounds initial end force and 13 pounds final end force for controlled detent resistance
• 3/16 inch plunger projection for shallow-detent applications
• Steel body and nose with black finish for durability and corrosion resistance in mild environments
• Integrated locking element locks the plunger body in place after adjustment
• 5/64 inch hex drive for installation and torque adjustment

Compatibility

Designed as a standard 1/4-20 threaded spring plunger for use in any tapped hole meeting that thread specification. Fits fixtures, jigs, machine tool bodies, and mechanical assemblies requiring a spring-loaded positioning element.

Installation Notes

Installation requires a properly tapped 1/4-20 hole in the mating component. Use a 5/64 inch hex key to thread the plunger in and set the locking element once the desired projection depth is confirmed. Ensure the mating detent geometry is aligned before fully locking the body in place. No special certifications or code compliance applies to this hardware item, but standard machining and assembly practices should be followed.