Vlier DSSB58 Threaded Ball Plunger 3/8-16 Stainless

Product Description

The VLIER DSSB58 is a threaded ball plunger designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. It features a stainless steel body with a nylon ball measuring 0.188 inches in diameter and a maximum ball reach of 0.048 inches. The body length is 0.625 inches with a 3/8-16 thread for direct installation into tapped holes. Initial end force is 5 pounds, with a final end force of 10 pounds. This plunger is suited for machine builders, tool and die shops, and precision assembly applications where repeatable positioning force and corrosion resistance are required.

Threaded ball plungers like the DSSB58 are used in fixtures, jigs, tooling plates, and light assembly equipment where a component needs to be held in position or indexed to a detent location. The stainless steel body makes it appropriate for environments with exposure to coolants, light chemicals, or humidity. The nylon ball provides smooth engagement without marring mating surfaces, making it well-suited for use against plastic, aluminum, or coated metal components.

Key Features

• 3/8-16 threaded body for installation into standard tapped holes
• Stainless steel body construction for corrosion resistance
• Nylon ball reduces surface marring on mating components
• 0.188 inch ball diameter with 0.048 inch maximum ball reach
• 5 pound initial end force and 10 pound final end force for controlled detent feel
• Zinc-plated finish with purple color code for easy identification

Compatibility

Designed as an OEM-style replacement or direct-install threaded ball plunger for mechanical fixtures, jigs, tooling plates, and indexing assemblies using a standard 3/8-16 tapped hole.

Installation Notes

Installation requires a properly tapped 3/8-16 hole in the mating component. Use an appropriate hex key or wrench on the body flats to thread the plunger in to the specified depth without overtightening, which can restrict ball movement. Ensure the ball travel path is clear of debris before installation. No power source is required; this is a mechanical component installed by machinists or assembly technicians.