Lead Screws

Thomson BSA precision lead screws are an excellent economical solution for your linear motion requirements. For more than 25 years, Thomson BSA has designed and manufactured the highest quality lead screw assemblies in the industry. Our precision rolling machines ensure accurate positioning to 0.003 in/ft and our PTFE coating process produces assemblies that have less drag torque and last longer


Let Thomson Help You Make Your Selection!

Help Me Choose, Thomson’s lead screw product selector, can assist you in selecting the lead screw product that best fits your application needs.

Interactive 3D Models, Thomson’s 3D modeling tool, allows you to configure 2D/3D product views with download capability in just about any major format (also available through our product selector).

Supernut® Assemblies

product picture

Offering smooth, precise, cost effective positioning, Supernuts® are the right solution for your application.  Featuring both standard and patented anti-backlash nut designs that offer the highest level of repeatability.

Learn More >

Lead & Acme Screws

product picture

A great lead nut can’t perform without a top quality lead screw.  Our screws feature accurate positioning to 0.003 in/ft, and our PTFE coating process produces assemblies that have less drag torque and last longer.

Learn More >

V-Thread Screws

product picture

Offering the ability to achieve very high positioning resolutions.  Advancement per turn can be as small as .0125 inches which makes them good for applications and places where fine adjustment is critical.

Learn More >