Vlier DSBMH8N Threaded Ball Plunger M8 X 1.25

Product Description

The VLIER DSBMH8N is a threaded ball plunger with an M8 x 1.25 thread size, designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. The plunger features a stainless steel body paired with a nylon ball, offering corrosion resistance in the body while reducing the risk of surface marring on mating components. The nylon ball has a diameter of 0.196 inches and a maximum ball reach of 0.059 inches. Initial end force is 9 pounds and final end force is 13.49 pounds. A locking element is included to secure the plunger in place once installed. The body length measures 0.63 inches. This component is typically installed by machine builders, maintenance technicians, and precision assembly professionals.

This ball plunger is suited for use in jigs, fixtures, tooling plates, and mechanical positioning systems where a reliable spring-loaded detent is required. The M8 x 1.25 thread allows installation into standard metric threaded bores. The nylon ball construction is appropriate for applications where the mating surface must be protected from scratching or galling. The locking element prevents the plunger from backing out under vibration or repeated cycling, making it well suited for production environments and automated equipment.

Key Features

• M8 x 1.25 thread for installation into standard metric threaded holes
• Stainless steel body provides corrosion resistance in demanding environments
• Nylon ball protects mating surfaces from damage during repeated contact
• Locking element prevents plunger from backing out under vibration
• Initial end force of 9 pounds with a final end force of 13.49 pounds
• Compact body length of 0.63 inches suits space-constrained assemblies

Compatibility

Designed as a standard metric threaded ball plunger for use in any assembly, fixture, or tooling application requiring an M8 x 1.25 threaded bore and a spring-loaded nylon ball detent.

Installation Notes

Installation is performed by threading the plunger into a pre-tapped M8 x 1.25 hole using an appropriate hex key or spanner tool. Ensure the mating bore is clean and free of debris before installation. Engage the locking element per the manufacturer's guidance to prevent the plunger from rotating or backing out during service. De-energize or lock out any equipment before installing or removing plungers in automated or powered assemblies.