Vlier SSSD54BN Threaded Spring Plunger 1/4-20 Ss Locking

Product Description

The VLIER SSSD54BN is a threaded spring plunger designed for precise positioning, indexing, and holding applications in mechanical assemblies. It features a 1/4-20 thread with a 3/4-inch thread length and a standard-length stainless steel body measuring 3/4 inches. The plunger nose is Delrin with a 1/8-inch projection and a diameter ranging from 0.116 to 0.118 inches. A built-in locking element secures the plunger in position once installed. Initial end force is 2 pounds and final end force is 9 pounds. This component is typically installed by machinists, mechanical assemblers, and maintenance technicians working on jigs, fixtures, tooling, and industrial equipment.

This spring plunger is suited for light-duty positioning and detent applications in manufacturing fixtures, machine tooling, enclosures, and similar mechanical assemblies. The stainless steel body provides corrosion resistance in environments where mild chemical exposure or moisture may be present. The Delrin nose reduces wear on mating surfaces and is appropriate for use in assemblies where metal-to-metal contact must be avoided. The locking element allows the plunger to be threaded into a tapped hole and locked in place without additional hardware.

Key Features

• Stainless steel body for corrosion resistance in demanding environments
• Delrin nose material minimizes wear on mating contact surfaces
• Built-in locking element secures plunger position after installation
• 1/4-20 thread size fits standard tapped holes in tooling and fixtures
• 2-pound initial end force and 9-pound final end force for consistent detent performance
• Standard plunger length with 1/8-inch projection for compact fitment

Compatibility

Designed as an OEM-style threaded spring plunger for use in any application requiring a 1/4-20 tapped hole with a 3/4-inch thread engagement depth in mechanical fixtures, tooling, or industrial assemblies.

Installation Notes

Install using a hex key or appropriate driver into a clean, properly tapped 1/4-20 hole. Engage the locking element fully to prevent backing out under vibration or repeated cycling. Ensure the mating bore or detent surface is aligned with the plunger projection before final torque. De-energize or lock out any powered equipment before servicing assemblies that contain spring plungers.