Vlier SSMD63N Threaded Spring Plunger 5/8-11 Stainless Steel

Product Description

The VLIER SSMD63N is a stubby threaded spring plunger designed for precise, repeatable positioning and light-duty detent applications in industrial assemblies. Built with a stainless steel body and a Delrin nose, this plunger threads into a tapped hole using a standard 5/8-11 thread. The total thread length and body length measure 1.062 inches, with a maximum plunger diameter of 0.31 inches and a projection of 0.215 inches. Initial end force is 2 pounds, and final end force is 8.5 pounds. A locking element is included to prevent the plunger from backing out under vibration or repeated cycling. This part is typically installed by machinists, toolmakers, or maintenance technicians working with fixtures, jigs, or mechanical assemblies.

This spring plunger is suited for applications where a compact, stubby profile is required and where controlled, springloaded detent force is needed to index, locate, or retain a moving component. Typical uses include machine tool fixtures, assembly jigs, sliding panels, and drawer or gate latches in light industrial equipment. The stainless steel body offers corrosion resistance for applications in wet, washdown, or chemically exposed environments. The Delrin nose reduces wear on mating surfaces and dampens contact noise during repeated engagement cycles.

Key Features

• Stubby plunger profile with 1.062 inch body length fits space-constrained installations
• 5/8-11 threaded body for direct installation into standard tapped holes
• Stainless steel body for corrosion resistance in demanding environments
• Delrin nose material reduces wear and dampens contact on mating surfaces
• Locking element prevents plunger from backing out under vibration or repeated use
• 2 pound initial end force and 8.5 pound final end force for reliable detent action

Compatibility

Designed as an OEM-style threaded spring plunger for industrial fixtures, jigs, and mechanical assemblies requiring a 5/8-11 tapped hole installation.

Installation Notes

Install using a hex wrench or spanner tool sized for the plunger body. Confirm the receiving tapped hole is clean, properly sized to 5/8-11, and free of debris before threading in. Engage the locking element before final torque to secure the plunger against loosening. Power down or de-energize any associated equipment before servicing assemblies that contain this plunger.