Vlier PH53P Threaded Spring Plunger 10-32 Steel Locking

Product Description

The VLIER PH53P is a threaded spring plunger designed for use in indexing, positioning, and light-duty locking applications across industrial and mechanical assemblies. It features a 10-32 thread with a 3/4 inch thread length and a standard-length steel body. The plunger nose diameter ranges from 0.091 to 0.092 inches, with a 1/8 inch projection beyond the mounting surface. Initial end force is 1.3 pounds, middle end force is 2.0 pounds, and final end force is 2.7 pounds. A locking element is incorporated into the body to resist loosening under vibration. Machinists, toolmakers, and maintenance technicians working with jigs, fixtures, and precision assemblies are the primary installers.

The PH53P suits applications where a compact, threaded plunger must engage a detent hole or groove to hold a component in a repeatable position. The 10-32 thread size makes it compatible with tapped holes in machine plates, fixture blocks, and fabricated assemblies. The steel body and steel nose construction handle moderate loading in industrial environments. The locking element adds retention security in vibration-prone installations where plunger back-out would compromise positioning accuracy.

Key Features

• 10-32 thread size with 3/4 inch thread length for standard tapped-hole installation
• Plunger projection of 1/8 inch provides positive detent engagement
• Initial end force of 1.3 pounds and final end force of 2.7 pounds for controlled positioning load
• Locking element resists loosening under vibration without additional thread-locking compound
• Steel body and steel nose for durability in industrial assembly and fixture applications
• Hex drive size of 0.063 inches allows installation with a precision hex key in tight clearances

Compatibility

Designed as a standard threaded spring plunger for tapped holes using 10-32 thread, suitable for use in jigs, fixtures, machine plates, and precision positioning assemblies requiring a spring-loaded detent.

Installation Notes

Installation is performed by threading the PH53P into a pre-tapped 10-32 hole using a precision hex key matched to the 0.063 inch hex drive. Ensure the mating detent hole or groove is properly sized for the plunger nose diameter before installation. The locking element eliminates the need for thread-locking adhesive in most applications, but the installation surface should be clean and free of debris. No power source or pneumatic shutoff is required for this mechanical component.