Vlier SBM12 Threaded Ball Plunger M12 X 1.75 Stainless Steel

Product Description

The VLIER SBM12 is a threaded ball plunger designed for precision positioning, detenting, and indexing applications in mechanical assemblies. It features an M12 x 1.75 threaded body with a 0.315 inch stainless steel ball and a maximum ball reach of 0.098 inches. The stainless steel construction of both the body and ball provides corrosion resistance suitable for demanding service environments. Initial end force is 6.75 pounds and final end force is 12.36 pounds, making it a controlled-force device. Machinists, tool and die makers, and mechanical assembly technicians are the primary installers of this type of component.

The SBM12 is suited for use in fixtures, jigs, tooling plates, and machine components where repeatable side-load-tolerant positioning is required. Its spring-loaded ball design makes it one of the smallest and lightest options in the threaded ball plunger category, fitting applications where space and weight constraints are a factor. The M12 x 1.75 thread allows installation directly into tapped bores in steel, aluminum, or other machinable substrates. Controlled end force characteristics make it appropriate for light-duty detent and retention functions in production tooling and automated equipment.

Key Features

• M12 x 1.75 threaded body for direct installation into tapped holes
• 0.315 inch stainless steel ball with 0.098 inch maximum ball reach
• Stainless steel body and ball for corrosion resistance
• 6.75 pound initial end force and 12.36 pound final end force for controlled positioning
• Side-load tolerant design suitable for indexing and detenting applications
• Compact, lightweight form factor identified by purple color code

Compatibility

Designed as an OEM-style replacement or direct-fit component for mechanical assemblies requiring an M12 x 1.75 threaded ball plunger with controlled end force characteristics.

Installation Notes

Installation is performed by machinists or mechanical assembly technicians using a standard hex wrench or spanner appropriate for the M12 body. Ensure the receiving bore is clean, correctly tapped to M12 x 1.75, and free of debris before threading in the plunger. Do not overtighten, as excessive torque can damage the spring mechanism or deform the ball seat. Verify ball travel and end force function after installation before returning the assembly to service.