Vlier H61N Threaded Spring Plunger 1/2-13 Steel Body

Product Description

The VLIER H61N is a threaded spring plunger designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. The H61N features a 1/2-13 thread size with a 1-1/4 inch thread length and a 1/4 inch nose projection. The steel body and steel nose provide durability in industrial environments. Initial end force is 2.70 pounds, middle end force is 6.00 pounds, and final end force is 9.30 pounds, making the H61N suitable for applications requiring a firm, consistent detent feel. A locking element is included to secure the plunger in position once installed. Machinists, tool-and-die makers, and mechanical assemblers typically install this component.

The VLIER H61N is used in machinery, fixtures, jigs, and positioning assemblies where repeatable detent action is required. The standard plunger length type suits a wide range of threaded hole installations. The 0.144 inch nose radius and 1/4 inch hex size allow straightforward installation with a standard hex wrench. This plunger is appropriate for both light industrial equipment and precision fixture work where controlled spring force and repeatable positioning are critical to the application.

Key Features

• 1/2-13 thread size with 1-1/4 inch thread length for secure engagement in standard threaded bores
• 1/4 inch nose projection with a 0.144 inch nose radius for precise detent positioning
• Steel body and steel nose construction for durability in industrial use
• Progressive spring force: 2.70 pounds initial, 6.00 pounds middle, 9.30 pounds final end force
• Integrated locking element to hold plunger position after installation
• 1/4 inch hex size for easy installation and removal with standard tooling

Compatibility

Designed as an OEM-style replacement or direct-fit component for threaded spring plunger applications using a 1/2-13 thread size in mechanical fixtures, jigs, and positioning assemblies.

Installation Notes

Installation is performed by machinists or mechanical assemblers using a 1/4 inch hex wrench. Ensure the receiving threaded bore is clean and free of debris before threading in the plunger. Apply thread-locking compound or use the integrated locking element as directed by the assembly specification to prevent backing out under vibration. De-energize or power down any associated equipment before performing installation or service work on the assembly.