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AFT Advanced Anti-Backlash Supernuts

AFT Advanced Anti-Backlash Supernuts

Thomson BSA's cost effective AFT Advanced Anti-Backlash nut offers excellent performance up to 10 lbs.  Accompanies sizes of acme screw from 3/8 inch diameter though to 7/16 inch with metric versions also available. Ideal for OEM applications, this nut effectively removes backlash and maintains low drag torque and smooth movement.  The anti-backlash mechanism adjusts as normal wear occurs between screw and nut.  Integral tri-flange provides an easy attachment to application.


AFT Advanced Specifications (Metric Units):

Lead (mm.)
2 3 5 6 10 20 35
10 X X X X X X X

AFT Advanced Specifications (Imperial Units):

                     Lead (in.)
0.063 0.083 0.100 0.125 0.167 0.200 0.250 0.375 0.500 1.000 1.200
3/8 X X X X X X X X X X X
7/16 X X X

AFT Advanced Highlights

  • Low cost
  • Ideal for OEM Applications
  • Offers smooth movement and low drag torque for axial loads up to 10 pounds
  • AFT anti-backlash collar automatically adjusts for wear for the life of the nut

Find a Product

Product Type

Screw Diameter

Screw Lead

Axial Load


Thread Direction


Product Family

CAD Models

  • Configurable 2D/3D Partstream Models
  • Configurable 2D/3D Solidcomponents Models
  • Configurable 2D/3D PartServer Models
  • Static 2D/3D Model file downloads

NOTE: Please use Internet Explorer 11, Edge, Firefox, or Google Chrome with Edrawings Viewer

Partstream Interactive Viewer Instructions:
1) Select a product from the table below and Configure your model to the right of the viewer that appears.
2) Click the Create button at the bottom of the configurator and wait for model to load (may take a few minutes).
3) Click the Download tab and login to your account if requested (or register as a first-time user).
4) Select a format, wait for the file to be created (may take a few minutes), and click the Download button.

AFT Advanced Anti-Backlash Supernuts
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