Gibraltar PR50-PT-G Pull Ring Plunger 1/2-13 Steel

Product Description

The GIBRALTAR PR50-PT-G is a steel pull ring plunger designed for use in mechanical positioning, indexing, and holding applications. The unit features a 1/2-13 threaded body that installs into a tapped hole, with a spring-loaded plunger that provides controlled end force ranging from 1 pound initial to 4 pounds final. The plunger diameter measures 0.31 inches with a projection of 0.38 inches, and the overall body length is 0.81 inches. A pull ring allows manual retraction of the plunger without tools. This component is installed by machinists, maintenance technicians, and mechanical assemblers working on fixtures, jigs, enclosures, and light industrial machinery.

This spring plunger is suited for light-duty mechanical applications where repeatable positioning or detent action is needed. Typical uses include panel latching, drawer alignment, rotating fixture indexing, and equipment access panels in industrial and commercial environments. The pull ring design is particularly useful where the operator needs to retract the plunger manually in confined or frequently accessed locations. The non-locking plunger type allows free spring return once the ring is released.

Key Features

• Pull ring enables manual plunger retraction without additional tooling
• Spring end force ranges from 1 pound initial to 4 pounds final for consistent detent action
• 1/2-13 thread for standard tapped-hole installation
• Non-locking plunger type with spring return
• Steel construction for durability in industrial service
• Hex drive head (0.50 inches) for wrench installation and secure seating

Compatibility

Designed as a standard threaded spring plunger for use in any application requiring a 1/2-13 tapped hole and a non-locking pull ring plunger with a 0.50-inch hex head.

Installation Notes

Installation is performed by threading the body into a pre-tapped 1/2-13 hole using a wrench on the 0.50-inch hex head. Ensure the mating bore is clean and the thread depth accommodates the 0.43-inch thread length. Depressurize or de-energize any assembly before installing or removing spring plungers in live equipment. Do not overtighten, as this can restrict plunger travel or damage the spring mechanism.