Vlier S48AP Threaded Spring Plunger 6-32 Steel Locking

Product Description

The VLIER S48AP is a threaded spring plunger designed for light-duty indexing, positioning, and detent applications in mechanical assemblies. The body and nose are both steel construction, offering durability in demanding production and tooling environments. The plunger threads to a 6-32 size with a 3/8-inch thread length and body length, and the plunger nose projects 1/16 inch at full extension. Initial end force is 1 pound and final end force is 1.6 pounds. A locking element is included to secure the plunger in place once installed, preventing back-out under vibration. Machinists, toolmakers, and mechanical assembly technicians are the primary installers of this type of component.

The S48AP is suited for use in jigs, fixtures, machine tooling, light industrial equipment, and precision mechanical devices where consistent, repeatable positioning is required. The compact 6-32 thread size makes it appropriate for small-bore tapped holes in steel, aluminum, and similar materials. Standard projection length and force ratings make it a common choice for panel detents, sliding drawers, rotary indexing mechanisms, and similar low-force positioning applications in both production and maintenance settings.

Key Features

• 6-32 threaded body with 3/8-inch thread length for installation in standard tapped holes
• Steel body and steel nose for durability in industrial and tooling applications
• 1/16-inch plunger projection provides consistent detent engagement
• 1 pound initial end force and 1.6 pounds final end force for light-duty positioning
• Integrated locking element resists back-out under vibration
• Standard plunger length type for straightforward drop-in installation

Compatibility

Designed as a standard 6-32 threaded spring plunger for use in any tapped hole with a 6-32 thread form, including applications requiring a steel body with a locking element for vibration resistance.

Installation Notes

Installation is typically performed by machinists or mechanical assembly technicians using a screwdriver or hex key appropriate for the plunger style. The receiving hole must be tapped to a 6-32 thread before installation. Ensure mating surfaces are clean and free of debris before threading in the plunger. Use the locking element feature to torque the plunger to the manufacturer-recommended position to prevent loosening during operation.