Vlier S64 Threaded Spring Plunger 3/4-10 1-3/4 in

Product Description

The VLIER S64 is a heavy-duty threaded spring plunger designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. It features a 3/4-10 thread with a 1-3/4 inch thread length and delivers an initial end force of 6.7 pounds and a final end force of 37.3 pounds, making it well-suited for applications that require firm, repeatable positioning under moderate load. The plunger projects 5/16 inches and has a diameter of 0.374 inches. Both the body and nose are constructed from steel for durability in industrial and trade environments. Machinists, tool-and-die technicians, and mechanical assembly professionals are the primary installers of this component.

The S64 is used in fixtures, jigs, machine tool assemblies, and positioning mechanisms where a spring-loaded plunger must engage a recess or detent to hold a component in place. Its standard plunger length profile and 3/4-10 thread size make it a common choice for medium-load positioning tasks in manufacturing, maintenance, and industrial equipment repair. It is sold individually and is appropriate for both new assembly builds and replacement applications.

Key Features

• 3/4-10 thread size with 1-3/4 inch thread length for secure installation in threaded bores
• 6.7 lb initial end force and 37.3 lb final end force for firm detent engagement
• 0.374 inch plunger diameter with 5/16 inch projection
• Steel body and steel nose for strength and wear resistance
• Standard plunger length type for broad fixture and tooling compatibility
• No locking element, allowing straightforward installation and removal

Compatibility

Designed as an OEM-style replacement or new-build component for threaded spring plunger applications requiring a 3/4-10 thread and standard plunger length profile in steel-bodied assemblies.

Installation Notes

Installation is performed by machinists or mechanical technicians using a hex wrench or spanner to thread the plunger into a properly tapped bore. Ensure the mating bore is clean and free of debris before installation. Avoid over-tightening, as this can restrict plunger travel or damage the spring mechanism. Confirm plunger projection and detent recess depth are matched before final assembly.