Vlier PH49 Threaded Spring Plunger 6-32 Steel

Product Description

The VLIER PH49 is a standard threaded spring plunger designed to provide controlled, repeatable positioning force in precision mechanical assemblies. Featuring a 6-32 thread size and a 17/32 inch thread length, this plunger delivers an initial end force of 0.5 pounds and a final end force of 1.5 pounds, with a middle end force of 1.0 pound. The plunger nose and body are both constructed from steel, making it suitable for applications where durability and consistent spring action are required. Machinists, mechanical assemblers, and maintenance technicians typically install this type of component during equipment assembly or tooling setup.

The PH49 is suited for use in industrial machinery, fixtures, jigs, tooling, and precision mechanical assemblies where a small-diameter, threaded spring plunger is needed to index, locate, or lightly retain a moving component. The 0.045 inch plunger diameter and 1/16 inch projection make it appropriate for tight-clearance applications where space is limited and a low-profile plunger engagement is required. It installs directly into a tapped 6-32 threaded hole without requiring a locking element.

Key Features

• 6-32 thread size with 17/32 inch thread length for direct installation into standard tapped holes
• Steel body and steel nose construction for durability in industrial environments
• Initial end force of 0.5 pounds and final end force of 1.5 pounds for controlled positioning
• Plunger diameter range of 0.044 to 0.045 inches for precision fitment
• 1/16 inch plunger projection provides low-profile engagement in tight-clearance assemblies
• No locking element - straightforward installation and removal without thread-locking hardware

Compatibility

Designed as an OEM-style replacement or direct-install spring plunger for standard 6-32 tapped hole applications in industrial fixtures, jigs, and precision mechanical assemblies.

Installation Notes

Installation is typically performed by a machinist or mechanical assembler using a hex wrench sized to the 0.063 inch hex drive. Ensure the receiving hole is tapped to 6-32 specification and is free of debris before threading in the plunger. Do not overtighten, as excessive torque can deform the small-diameter body or affect spring function. Verify plunger projection and force values meet assembly requirements before finalizing installation.