Vlier DBMH8A Threaded Ball Plunger M8 X 1.25

Product Description

The VLIER DBMH8A is a threaded ball plunger designed for indexing, positioning, and light-duty detent applications in industrial and mechanical assemblies. The body is steel with a zinc-plated finish, and the ball is nylon, offering smooth, low-friction contact against mating surfaces. The M8 x 1.25 thread allows direct installation into tapped holes without additional hardware. Key performance values are 9 pounds initial end force and 13.49 pounds final end force, making this plunger suitable for consistent, repeatable positioning under moderate load. Licensed mechanical technicians and assembly professionals typically install this component during machine builds or fixture setups.

This ball plunger is used in industrial machinery, jigs, fixtures, and positioning assemblies where a spring-loaded nylon ball provides controlled detent or alignment feedback. The nylon ball material is well suited for applications requiring gentle contact with soft or coated surfaces, minimizing marking or damage to the mating part. Its compact body length of 0.63 inches makes it appropriate for space-constrained installations.

Key Features

• M8 x 1.25 thread for direct installation into standard tapped holes
• Steel body with zinc-plated finish for corrosion resistance
• Nylon ball for low-friction, non-marring contact
• 9 pounds initial end force and 13.49 pounds final end force for consistent detent action
• Maximum ball reach of 0.059 inches
• Compact body length of 0.63 inches suits tight installation clearances

Compatibility

Designed as an OEM-style threaded ball plunger for use in industrial fixtures, jigs, and positioning assemblies requiring an M8 x 1.25 threaded plunger with a nylon ball.

Installation Notes

Installation is performed by mechanical assemblers or maintenance technicians using standard hand tools. Thread the plunger into a pre-tapped M8 x 1.25 hole and torque to the assembly specification for the host material. Ensure the mating surface is clean and free of debris before seating the plunger to avoid damage to the nylon ball. De-energize or lock out any associated machinery before servicing or replacing plungers in active assemblies.