Jergens 30772 Threaded Spring Plunger M6 X 1 Steel

Product Description

The JERGENS 30772 is a short-type threaded spring plunger designed for precise positioning and indexing applications in industrial assemblies. The M6 x 1 steel body threads into a tapped hole and provides a spring-loaded nose that projects 4 mm, applying controlled end force to hold or locate a mating component. The plunger nose is made from Delrin, which resists wear and reduces marring on contact surfaces. A black finish on the steel body provides basic corrosion resistance. The locking element locks the plunger body in place after installation, preventing loosening from vibration or repeated cycling.

This spring plunger is suited for light-duty positioning, detent, and feed applications in machinery, fixtures, jigs, and tooling. The short body length of 16 mm keeps the installed profile compact, making it a practical choice where space is limited. It is commonly installed by tool and die makers, machine builders, and maintenance technicians working on production fixtures or mechanical assemblies requiring repeatable part location.

Key Features

• M6 x 1 thread with 16 mm thread length for direct installation into a standard tapped hole
• Locking element secures the plunger body in position after seating, preventing rotation or backing out
• Delrin nose reduces surface marring on positioned parts and offers good wear resistance
• Short plunger type suits compact fixture and tooling applications
• Initial end force of 0.14 kg and final end force of 1.59 kg provide a firm, controlled detent feel
• Black finish on steel body provides a clean appearance and basic surface protection

Compatibility

Designed as an OEM-style replacement or new-installation spring plunger for fixtures, jigs, tooling, and mechanical assemblies requiring an M6 x 1 threaded spring plunger with a locking body element.

Installation Notes

Installation requires a properly tapped M6 x 1 through or blind hole in the mating component. Use a standard hex key or spanner tool compatible with the plunger body drive feature to thread and seat the plunger. Engage the locking element after the plunger is positioned at the correct depth to prevent movement during service. Ensure the mating hole is clean and free of debris before installation to achieve full thread engagement and accurate projection.