Vlier HL1015 Threaded Spring Plunger 1/8 Thread Steel

Product Description

The VLIER HL1015 is a long-style threaded spring plunger designed for indexing, positioning, and controlled-force applications in industrial assemblies. It features a 1/8-inch thread with a 2-inch thread length and a 0.5-inch maximum plunger diameter. The steel body measures 5 inches in length and 0.844 inches in diameter. Initial end force is 4 pounds, with a final end force of 31 pounds, giving this plunger a strong engagement range suited to heavier-duty positioning tasks. A locking element is included to secure the plunger in its installed position. Machinists, toolmakers, and maintenance technicians commonly install this type of plunger into threaded bores in fixtures, jigs, and machine components.

The HL1015 is suited for use in precision fixtures, machine tool assemblies, and production tooling where a reliable spring-loaded detent or positioning stop is required. Its long plunger configuration provides a 1.5-inch projection, making it appropriate for applications where extended reach beyond the mounting surface is necessary. The locking element allows the unit to be secured firmly after adjustment, preventing rotation or backing out under vibration or repeated cycling. This plunger is typically installed by toolmakers, machinists, or mechanical maintenance personnel in light industrial and production environments.

Key Features

• Long plunger style with 1.5-inch projection for extended reach applications
• Steel body and nose construction for durability in industrial use
• Initial end force of 4 pounds and final end force of 31 pounds for positive engagement
• Integrated locking element secures plunger position after installation and adjustment
• 1/8-inch thread size with 2-inch thread length for deep or through-bore mounting
• 1/2-inch hex size allows standard wrench installation and removal

Compatibility

Designed as an OEM-style or replacement threaded spring plunger for industrial fixtures, jigs, and machine tool assemblies requiring a 1/8-inch threaded bore and long-style plunger projection.

Installation Notes

Installation requires threading the plunger into a properly tapped 1/8-inch bore using a standard wrench on the 1/2-inch hex. Ensure the mating bore is clean and free of debris before installation. Disengage or de-energize any machinery before installing or adjusting plungers in active assemblies. Once positioned, engage the locking element to prevent the plunger from backing out during operation.