Vlier SSPH50P Threaded Spring Plunger 8-32 Stainless Steel

Product Description

The VLIER SSPH50P is a standard threaded spring plunger designed for precise, repeatable positioning and retention in industrial assemblies. Threaded at 8-32 with a 5/8-inch thread length and body length, this plunger delivers an initial end force of 2.7 pounds and a final end force of 7.3 pounds, with a middle end force of 5.0 pounds. The plunger nose and body are both constructed of stainless steel, offering corrosion resistance in demanding environments. A locking element is incorporated to secure the plunger in place after installation, preventing rotation or backing out under vibration or repeated use. Machinists, toolmakers, and assembly technicians install this type of component in fixtures, jigs, and precision equipment.

The SSPH50P is suited for use in positioning fixtures, workholding devices, tooling plates, and light-duty indexing applications across manufacturing and industrial settings. The compact plunger diameter - ranging from 0.069 to 0.070 inches - makes it appropriate for tight-tolerance assemblies where space is limited. The 3/32-inch projection provides positive engagement without excessive protrusion. This part is typically installed in machined holes or tapped bores in metal or polymer components where controlled spring force and reliable positioning are required.

Key Features

• 8-32 thread size with 5/8-inch thread and body length for standard installation depth
• Initial end force of 2.7 pounds and final end force of 7.3 pounds for controlled spring resistance
• Stainless steel body and nose construction for corrosion resistance
• Integrated locking element prevents loosening under vibration
• 3/32-inch nose projection for positive, repeatable engagement
• Plunger diameter range of 0.069 to 0.070 inches suits tight-tolerance bores

Compatibility

Designed as an OEM-style replacement or direct-fit component for standard 8-32 threaded spring plunger applications in industrial fixtures, jigs, and positioning assemblies.

Installation Notes

Installation is performed by machinists or assembly technicians using a hex wrench sized to the 0.063-inch hex on the plunger body. Thread the plunger into a clean, properly tapped 8-32 hole and tighten to the locking element engagement point to prevent backing out. Inspect the tapped bore for debris before installation. Do not overtighten, as this can deform the plunger or damage the locking element.