Vlier SML12AN Threaded Spring Plunger M12 X 1.75 Steel

Product Description

The VLIER SML12AN is a threaded spring plunger designed for precision positioning, indexing, and light-duty holding applications in industrial assemblies. It features an M12 x 1.75 thread with a 1.102-inch thread length and a maximum plunger diameter of 0.236 inches, with a projection of 0.157 inches. The steel body and steel nose provide durability in demanding environments. Initial end force is 2.25 pounds and final end force is 12.36 pounds, making this plunger suitable for consistent, repeatable engagement. A locking element is included to secure the plunger position once installed. This component is typically installed by maintenance technicians and machine builders working with jigs, fixtures, and precision mechanical assemblies.

The SML12AN is suited for use in industrial fixtures, tooling plates, machine frames, and equipment panels where a threaded spring plunger is required to provide positive stop or detent action. Its standard-length plunger profile fits common through-hole and tapped-hole configurations in both light manufacturing and heavy industrial settings. The M12 x 1.75 thread size is widely used in metric-threaded assemblies across general industry and OEM equipment manufacturing.

Key Features

• M12 x 1.75 metric thread for compatibility with standard tapped holes
• Steel body and steel nose for wear resistance and long service life
• Locking element included to prevent back-out after installation
• Initial end force of 2.25 pounds and final end force of 12.36 pounds for controlled detent engagement
• Standard plunger length type with 0.157-inch projection
• Compact 1.102-inch thread and body length for space-constrained applications

Compatibility

Designed as an OEM-style threaded spring plunger for use in metric-threaded industrial fixtures, tooling, and mechanical assemblies requiring an M12 x 1.75 thread size.

Installation Notes

Installation is performed by threading the plunger into a properly tapped M12 x 1.75 hole using an appropriate hex key or spanner wrench. Ensure the mating hole is clean and free of debris before installation. The locking element should be engaged after the plunger is set to the desired position to prevent loosening from vibration. Follow applicable facility safety protocols and de-energize or lock out any equipment before servicing assemblies that contain this component.