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

Product Description

The GIBRALTAR SWN10-5BLCZ-G is a threaded ball plunger designed to provide consistent spring-loaded positioning and detent force in mechanical assemblies. It features a steel body with a zinc-plated finish for corrosion resistance and a nylon ball that delivers smooth, low-friction contact against mating surfaces. The ball diameter measures 0.156 inches with a maximum ball reach of 0.04 inches. Initial end force is 2 pounds and final end force is 4.5 pounds. This plunger is installed in fixtures, jigs, tooling, and light machinery where repeatable indexing or part retention is required. Machinists, tool and die makers, and maintenance technicians are the primary installers.

This ball plunger is suited for use in positioning applications across industrial machinery, fixtures, and assembly tooling. The 5/16-18 thread size allows installation into standard tapped holes found in steel, aluminum, and plastic components. The nylon ball makes it appropriate for use against surfaces where marring or scratching must be avoided, such as soft metals or finished parts. It is a single-unit item sold individually and is commonly used in both production tooling and field maintenance scenarios.

Key Features

• 5/16-18 threaded body for installation into standard tapped holes
• Steel body with zinc-plated finish for corrosion resistance
• Nylon ball provides low-friction, non-marring contact
• Initial end force of 2 pounds, final end force of 4.5 pounds for reliable detent action
• Ball diameter of 0.156 inches with 0.04 inches maximum ball reach
• No locking element — allows straightforward installation and adjustment

Compatibility

Designed as a standard 5/16-18 threaded ball plunger for use in fixtures, jigs, and mechanical assemblies requiring spring-loaded ball detent or positioning functions.

Installation Notes

Install using a wrench or hex key appropriate to the body drive type into a pre-tapped 5/16-18 hole. Ensure the mating hole is clean and free of chips or debris before threading in the plunger. Do not overtighten, as this can restrict ball travel or damage the nylon ball. No special codes govern installation, but standard shop safety practices apply when working with spring-loaded components.