Gibraltar SSTPR50-PT-G Locking Pull Ring Plunger

Product Description

The GIBRALTAR SSTPR50-PT-G is a stainless steel locking pull ring plunger designed for indexing, positioning, and retention applications in industrial and mechanical assemblies. The plunger uses a 1/2-13 thread with a thread length of 1.4 inches and a body length of 2 inches. The locking pull ring mechanism holds the plunger in the retracted position, preventing unintended engagement during setup or adjustment. Initial end force is 2.5 pounds, with a final end force of 5 pounds. The stainless steel construction offers corrosion resistance for use in harsh or wash-down environments. Maintenance technicians, machine builders, and fabricators are the typical installers of this component type.

This plunger is suited for use in jigs, fixtures, machine enclosures, and equipment panels where a positive-locking, retractable locating pin is required. The pull ring allows manual retraction and locking without tools, making it practical for frequent adjustment points. The 1/2-13 thread size accommodates standard tapped hole patterns. Applications span general industrial machinery, tool fixtures, and fabricated assemblies requiring reliable component positioning.

Key Features

• Locking pull ring retracts and holds plunger in the disengaged position for hands-free operation
• 1/2-13 thread size with 1.4-inch thread length for standard tapped installations
• Stainless steel construction provides corrosion resistance in wet or chemical-exposure environments
• Initial end force of 2.5 pounds ramping to a final end force of 5 pounds for firm, positive engagement
• 5/16-inch (0.312-inch) plunger diameter with 0.5-inch plunger projection
• Compact at 0.05 pounds, suitable for light-duty positioning assemblies

Compatibility

Designed as an OEM-style replacement or direct-fit component for industrial fixtures, jigs, and equipment panels requiring a 1/2-13 threaded locking pull ring plunger with stainless steel construction.

Installation Notes

Installation is performed by threading the plunger body into a pre-tapped 1/2-13 hole to the desired depth and securing with the head. Ensure the mating hole is clean and free of debris before installation. No power shutoff is required for mechanical hardware of this type, but surrounding machinery should be de-energized and locked out per facility LOTO procedures before service on adjacent assemblies. Do not overtighten the plunger body; use a wrench only to the manufacturer-specified snug fit appropriate for the mounting material.