Vlier PHB58P Threaded Ball Plunger 3/8-16 Steel

Product Description

The VLIER PHB58P is a threaded ball plunger designed for controlled end-force applications in mechanical assemblies. It features a 3/8-16 thread size, a stainless steel ball measuring 0.188 inches in diameter, and a zinc-plated steel body with a total body length of 0.8 inches. The plunger delivers an initial end force of 5 pounds and a final end force of 10 pounds, with a maximum ball reach of 0.048 inches. A built-in locking element secures the adjustment once set. This part is typically installed by machinists, millwrights, and maintenance technicians working on positioning, indexing, or detent mechanisms.

The PHB58P is suited for use in industrial and mechanical assemblies where repeatable, controlled detent force is required. Common applications include fixture positioning, panel latching, and component indexing where a defined resistance or hold point is needed. The purple color code aids in identification during assembly and maintenance. Its compact body length of 0.8 inches makes it compatible with space-constrained installations requiring a standard 3/8-16 threaded bore.

Key Features

• 3/8-16 thread size for standard threaded bore installation
• Stainless steel ball with 0.188 inch diameter for corrosion resistance at the contact point
• Zinc-plated steel body for general corrosion protection
• 5 pound initial end force and 10 pound final end force for controlled detent performance
• Built-in locking element maintains set position under vibration or load
• Purple color code for quick field identification

Compatibility

Designed as an OEM-style replacement or new-installation component for mechanical assemblies requiring a 3/8-16 threaded ball plunger with controlled end-force characteristics.

Installation Notes

Installation is performed by threading the PHB58P into a tapped 3/8-16 bore using an appropriate wrench or hex tool. De-energize and lock out any associated equipment before servicing assemblies that contain this plunger. Avoid over-torquing, as this can damage the locking element or distort the thread engagement. Verify end-force requirements match the application before final installation.