Gibraltar SWN10-5B-G Threaded Ball Plunger 5/16-18

Product Description

The GIBRALTAR SWN10-5B-G is a threaded ball plunger designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. The plunger features a steel body with a zinc-plated finish and a nylon ball, offering corrosion resistance and smooth, low-friction contact. Thread size is 5/16-18, with a body length of 0.578 inches and a ball diameter of 0.156 inches. Initial end force is 4 pounds and final end force is 9 pounds, making it suitable for applications requiring a defined tactile stop or repeatable positioning feedback.

This ball plunger is used in light mechanical assemblies, fixtures, jigs, tooling, and machine components where controlled positioning or detent action is required. The 5/16-18 threaded body installs into standard tapped holes, allowing straightforward integration into existing assemblies. It is commonly installed by machinists, tool and die technicians, and mechanical maintenance personnel in both production and maintenance environments.

Key Features

• 5/16-18 threaded body for installation in standard tapped holes
• Steel body with zinc-plated finish for corrosion resistance
• Nylon ball provides smooth, low-friction detent contact
• 4-pound initial end force and 9-pound final end force for repeatable positioning
• Compact 0.578-inch body length suits confined assembly spaces
• Color code: Purple for quick field identification

Compatibility

Designed for use in mechanical assemblies, fixtures, and tooling that accept a standard 5/16-18 threaded ball plunger with a steel body and nylon ball contact element.

Installation Notes

Installation requires a properly tapped 5/16-18 hole in the mating component. Secure the plunger using standard hex or flat-blade tooling appropriate for the drive type. Verify that the ball reach of 0.04 inches is sufficient for the intended detent groove or contact surface before final assembly. Do not overtighten, as excessive torque can damage the nylon ball or deform the plunger body.