Vlier SSMD60 Threaded Spring Plunger 1/2-13 Stubby

Product Description

The VLIER SSMD60 is a stubby threaded spring plunger designed for positioning, indexing, and light-duty detent applications in industrial and mechanical assemblies. The plunger features a 1/2-13 thread with a 0.75 inch thread length and a maximum plunger diameter of 0.248 inches. Projection measures 0.151 inches, making it well suited for tight clearance environments. The body is constructed from stainless steel for corrosion resistance, while the nose is Delrin for controlled contact without marring mating surfaces. Initial end force is 5 pounds and final end force is 28 pounds. Machinists, tool and die technicians, and mechanical assembly professionals typically install this type of component.

This spring plunger is used in fixtures, jigs, tooling plates, and mechanical subassemblies where repeatable positioning or light retention force is required. The stubby body length of 0.75 inches suits applications with limited depth in the receiving bore. The stainless steel body makes it appropriate for environments where mild corrosion exposure or washdown conditions are a concern. No locking element is present, so installation relies on standard thread engagement.

Key Features

• 1/2-13 thread size with 0.75 inch thread length for straightforward installation into tapped bores
• Stubby plunger style at 0.75 inch body length for shallow-depth applications
• Stainless steel body provides corrosion resistance in demanding environments
• Delrin nose material for low-friction, non-marring contact with mating surfaces
• 5 pound initial end force and 28 pound final end force for light-duty detent and positioning
• No locking element - relies on standard thread engagement for retention

Compatibility

Designed as an OEM-style threaded spring plunger for industrial fixtures, tooling plates, jigs, and mechanical assemblies requiring a 1/2-13 tapped bore.

Installation Notes

Installation is performed by threading the plunger into a pre-tapped 1/2-13 bore using a standard hex key or spanner wrench as appropriate for the drive style. Ensure the receiving bore is clean and free of debris before installation to prevent thread damage. Torque to the assembly specification defined by the fixture or equipment design - do not over-tighten, as this may deform the plunger body or restrict plunger travel. Depressurize or de-energize any assembly before servicing components in the plunger bore area.