Vlier HH1000 Threaded Spring Plunger 1/8 Thread Steel

Product Description

The VLIER HH1000 is a long-body threaded spring plunger designed for indexing, positioning, and light-duty clamping applications in industrial assemblies. The steel body measures 5 inches in length with a body diameter of 0.844 inches and accepts a 1/8-inch thread with a 2-inch thread length. The spring-loaded plunger delivers an initial end force of 16 pounds and a final end force of 50.75 pounds, providing consistent and repeatable engagement force. A locking element is included to secure the plunger in position once installed. Machinists, toolmakers, and maintenance technicians typically install this type of component in jigs, fixtures, and mechanical assemblies requiring controlled spring tension.

This plunger is suited for use in precision fixtures, production tooling, and mechanical assemblies where repeatable spring force and positive positioning are required. The long plunger configuration, with a 1-inch projection and overall plunger length of 7 inches, makes it appropriate for applications where extended reach into a threaded bore is necessary. It is threaded for direct installation into a tapped hole and is compatible with general industrial and manufacturing environments.

Key Features

• Steel body and nose material for durability in industrial environments
• 16-pound initial end force and 50.75-pound final end force for consistent spring engagement
• 1-inch plunger projection with a 7-inch overall plunger length
• 1/8-inch thread with 2-inch thread length for secure installation in a tapped bore
• Locking element included to hold the plunger position after adjustment
• 0.5-inch hex size for standard wrench installation

Compatibility

Designed as a direct-fit threaded spring plunger for industrial jigs, fixtures, and mechanical assemblies using a 1/8-inch tapped bore with a minimum thread engagement depth to accommodate a 2-inch thread length.

Installation Notes

Installation is performed by threading the HH1000 into a properly tapped 1/8-inch bore using a 0.5-inch hex wrench. Ensure the receiving bore is clean and the thread is free of debris before installation. Torque to the assembly requirement specified in the fixture design documentation. Engage the locking element once the plunger is set to the desired projection to prevent backing out under load.