Vlier SSL375P Knob Handle Spring Plunger 3/8-16 Stainless

Product Description

The VLIER SSL375P is a knurled knob handle spring plunger designed for positive positioning and indexing applications in industrial and mechanical assemblies. It features a 3/8-16 thread size with a 0.75-inch thread length and a non-locking stainless steel body measuring 0.94 inches in body length. The plunger delivers an initial end force of 1 pound and a final end force of 8 pounds, making it suitable for moderate-duty positioning tasks. Constructed from stainless steel, the SSL375P resists corrosion in environments where moisture or chemical exposure is a concern. Machinists, toolmakers, and mechanical assemblers typically install this component.

This spring plunger is used in jigs, fixtures, machine tool assemblies, and precision positioning mechanisms where repeatable detent action is required. The knurled knob allows manual actuation without tools, making it practical in applications where frequent operator adjustment is needed. The non-locking plunger design allows free axial travel under load, returning to position via spring force. It is appropriate for light to moderate indexing loads in both production and maintenance settings.

Key Features

• Non-locking plunger type allows free spring-loaded axial travel
• Knurled knob handle enables tool-free manual actuation
• Stainless steel construction for corrosion resistance
• Initial end force of 1 pound ramping to a final end force of 8 pounds
• Maximum plunger diameter of 0.185 inches with a tolerance of +0.001 / -0.000 inches
• Locking element included for secure thread engagement

Compatibility

Designed as an OEM-style replacement or direct-install spring plunger for industrial jigs, fixtures, and indexing assemblies using a standard 3/8-16 threaded bore.

Installation Notes

Installation requires a tapped 3/8-16 hole in the mating component. Ensure the bore depth accommodates the full 0.75-inch thread length plus plunger projection before installing. De-energize or lock out any powered equipment before servicing assemblies containing this plunger. Avoid over-torquing the knob body, as stainless steel threads can gall against similar materials without proper thread lubricant.