Vlier SSM62 Threaded Spring Plunger 5/8-11 Stainless Steel

Product Description

The VLIER SSM62 is a stubby-body threaded spring plunger designed for positioning, indexing, and light assembly-holding applications where space is limited and reliable end force is required. The plunger body and nose are both constructed from stainless steel, offering corrosion resistance suitable for demanding industrial environments. It uses a 5/8-11 thread form with a body and thread length of 1.062 inches. The spring delivers 7 lb of initial end force and 50 lb of final end force, making it well suited for applications that require a firm positive stop or detent under load. Mechanical assemblers and machine builders are the primary installers of this component.

The SSM62 is intended for high end force applications where available installation depth is restricted. The stubby plunger profile and 0.215 inch projection keep the installed footprint compact while still delivering substantial spring force. Typical use cases include fixture plates, assembly jigs, tooling pallets, and precision mechanical assemblies where repeatable detent or positioning force is needed in a confined bore or tapped hole. The 0.31 inch maximum plunger diameter allows installation in tightly spaced layouts without interference with adjacent hardware.

Key Features

• Stubby plunger length type for use in restricted-space installations
• 50 lb final end force provides firm, reliable detent or positioning action
• 7 lb initial end force for smooth plunger engagement
• Stainless steel body and nose for corrosion resistance in harsh environments
• 5/8-11 thread with 1.062 inch thread length for secure installation in standard tapped holes
• No locking element - allows straightforward installation and removal without thread-locking features

Compatibility

Designed as a direct-fit threaded spring plunger for any application requiring a 5/8-11 tapped hole with a minimum bore depth accommodating a 1.062 inch thread length and high end force output in a stubby-profile form factor.

Installation Notes

Installation is performed by machinists or mechanical assemblers using standard hand tools sized for the 5/8-11 thread form. Ensure the receiving tapped hole is clean and free of debris before threading in the plunger to avoid damage to the stainless steel threads. Do not overtorque during installation, as stainless steel fasteners are susceptible to galling. Verify plunger projection clearance and spring travel against the mating component before final assembly.