Gibraltar 57006G Threaded Spring Plunger 1/4-28 Steel

Product Description

The GIBRALTAR 57006G is a threaded spring plunger designed for precise positioning, indexing, and detent applications in mechanical assemblies. The plunger features a 1/4-28 thread size with a 1 inch thread length and a steel body finished in black. The plunger nose diameter measures 0.118 inches with a 3/16 inch projection. An integrated locking element secures the plunger in place after installation, preventing loosening from vibration. Initial end force is 3 pounds and final end force is 13 pounds, providing a firm, controlled spring action suited for light-duty positioning work. Machinists, toolmakers, and mechanical assemblers commonly install this type of hardware.

This spring plunger is suited for use in jigs, fixtures, tooling plates, and general industrial assemblies where repeatable detent positioning is required. The 1/4-28 unified fine thread engages standard tapped holes in steel, aluminum, or plastic substrates. The black finish provides basic corrosion resistance for typical shop environments. The locking element eliminates the need for thread-locking compound in most applications, saving time during assembly and future servicing.

Key Features

• 1/4-28 thread size with 1 inch thread length for standard tapped-hole installation
• 0.118 inch plunger nose diameter with 3/16 inch projection
• 3 pound initial end force and 13 pound final end force for controlled detent action
• Steel body and steel nose material for durability in industrial environments
• Integrated locking element prevents back-out without thread-locking compound
• Black finish for basic corrosion resistance
• 5/64 inch hex size for installation with a hex key

Compatibility

Designed as a standard threaded spring plunger for use in any application requiring a 1/4-28 tapped hole with a 1 inch thread engagement depth.

Installation Notes

Install using a 5/64 inch hex key; do not overtighten, as excessive torque can damage the locking element or distort the body. Ensure the mating tapped hole meets the 1/4-28 thread specification and is free of debris before installation. The locking element engages upon full thread engagement and does not require additional thread-locking adhesive under normal conditions.