Gibraltar 10109P-G Threaded Ball Plunger 5/16-18

Product Description

The GIBRALTAR 10109P-G is a threaded ball plunger designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. It features a 5/16-18 threaded body machined from stainless steel, with a stainless steel ball measuring 0.156 inches in diameter. The plunger delivers an initial end force of 6 pounds and a final end force of 17 pounds, making it suited for applications requiring a firm, repeatable snap-in feel. The body length is 0.578 inches with a maximum ball reach of 0.04 inches. This component is installed by machinists, maintenance technicians, and mechanical assemblers in production and field environments.

The 10109P-G is used in light industrial and mechanical assembly applications where a spring-loaded ball is needed to hold a part, panel, or sliding component in a set position. It is threaded directly into a tapped hole, requiring no additional hardware. The stainless steel construction makes it appropriate for environments with moisture exposure or mild corrosion risk. It is sold individually and is suitable for both OEM manufacturing and maintenance replacement scenarios.

Key Features

• 5/16-18 threaded body for direct installation into a standard tapped hole
• Stainless steel body and ball for corrosion resistance
• 0.156-inch ball diameter with 0.04-inch maximum ball reach
• 6-pound initial end force and 17-pound final end force for firm, repeatable detent action
• No locking element — straightforward thread-in installation
• Color code: Purple for quick field identification

Compatibility

Designed as a standard threaded ball plunger replacement or OEM component for mechanical assemblies using a 5/16-18 tapped hole with spring-loaded ball detent requirements.

Installation Notes

Installation is performed by threading the plunger into a pre-tapped 5/16-18 hole using a hex key or appropriate driver. Ensure the mating hole is clean and free of debris before installation. No power disconnect is required, but confirm the assembly is de-energized and de-pressurized if the plunger is used in a live mechanical or pneumatic system. Do not overtighten, as excessive torque may damage the spring mechanism or thread engagement.