Supernut® Assemblies

Thomson BSA provides a large array of standard plastic nut assemblies in anti-backlash or standard Supernut® designs. All of our standard plastic nut assemblies use an internally lubricated Acetal - providing excellent lubricity and wear resistance with or without additional lubrication. With the introduction of new unique patented zero backlash designs, Thomson BSA provides assemblies with high axial stiffness, zero backlash and the absolute minimum drag torque to reduce motor requirements. These designs produce products that cost less, perform better and last longer.

XC Advanced Anti-Backlash

The most advanced Anti-Backlash nut design available.  Featuring the unique patented ActiveCAM™, which accomplishes high axial stiffness, zero backlash and the absolute minimum drag torque.Learn more about XC Advanced Anti-Backlash >

AFT Advanced Anti-Backlash

A low cost solution for light load OEM applications.  Offers smooth movement and low drag torque for axial loads up to 10 pounds.  The AFT anti-backlash collar automatically adjusts for wear for the life of the nut.Learn more about AFT Advanced Anti-Backlash >

SNAB Anti-Backlash

Part of our time-tested red Supernut® line, this design offers extreme simplicity and good performance up to the spring preload setting.  Clear function and easy assembly make this a user favorite.Learn more about SNAB Anti-Backlash >

MTS Flange Mount

Offering all the load capacity and efficiency you would expect from our anti-backlash designs without the complication of a backlash take-up mechanism.  Easy to mount with convenient integral flange.Learn more about MTS Flange Mount >

SN Thread Mount

This is the one, the original red Supernut®.  These standard SN nuts have proven themselves for the past twenty-five years, and provide a high performance lead screw solution in a compact envelope.Learn more about SN Thread Mount >

BN Bronze Nuts

Bronze Nuts can carry significantly higher load than plastic nuts, making them perfect for heavy duty applications. Thomson BSA uses SAE 660 bearing bronze for the best combination of load capacity and lubricity.Learn more about BN Bronze Nuts >