Vlier SM6AP Threaded Spring Plunger M6 X 1 Steel Locking

Product Description

The VLIER SM6AP is a threaded spring plunger designed for precise, repeatable positioning and indexing in mechanical assemblies. Featuring an M6 x 1.00 thread and a steel body with a steel nose, this standard-length plunger delivers an initial end force of 4.05 pounds and a final end force of 11.24 pounds. The 0.106-inch maximum plunger diameter and 0.098-inch projection keep the installed profile compact. A built-in locking element secures the plunger in place after installation, preventing loosening under vibration or repeated cycling. Machinists, toolmakers, and mechanical assembly technicians install this type of component when a controlled, spring-loaded detent or stop point is required.

This plunger is suited for use in jigs, fixtures, tooling plates, machine frames, and precision mechanical assemblies where a threaded M6 x 1.00 hole is available. The standard 0.787-inch thread length accommodates typical boss depths in steel and aluminum components. Applications include production tooling, indexing mechanisms, and panel assembly fixtures across industrial and manufacturing environments. The locking element feature is especially useful in high-vibration settings where a standard plunger without locking could back out over time.

Key Features

• M6 x 1.00 thread with 0.787-inch thread length for standard metric tapped holes
• Steel body and steel nose for durability in industrial tooling applications
• 4.05-pound initial end force and 11.24-pound final end force for controlled detent resistance
• Maximum plunger diameter of 0.106 inches with 0.098-inch projection for a low-profile footprint
• Integrated locking element prevents backing out under vibration or repeated cycling

Compatibility

Designed as a direct-fit replacement or new installation for mechanical assemblies requiring a standard M6 x 1.00 threaded spring plunger with a locking element.

Installation Notes

Installation is performed by qualified machinists or mechanical assembly technicians using a standard hex wrench or spanner tool sized for the M6 plunger body. Ensure the receiving tapped hole is clean and to tolerance before threading in the plunger. The locking element should be engaged fully per the assembly specification to prevent loosening. De-energize or lock out any powered equipment before servicing assemblies containing this component.