Precision Rolled - The 29 degree ACME thread form provides both efficiency of motion and load strength. Cold formed lead screw material has a smooth finish for reduced friction and a strong grain structure for driving high loads. Maximum length of screw as is 144inch on this imperialy sized product. (Diameter 1.0inch)
Standard Features:

  • ACME thread sizes range between 3/16" and 5/8" in outside diameter.
  • Conforms to ANSI B1.5 and B1.8 thread standards.
  • Available in single or multiple start thread forms.
  • External threaded rods have a 2G thread fit.
  • The lead accuracy is 0.006" per foot max.
  • Standard material is 300 series Stainless Steel.
  • Surface roughness is a burnished 16 finish or better.
  • We offer many standard ACME sizes, and custom forms are available upon request.

Acme threaded screws (Inch)

Precision rolled ACME threads have a 2G thread fit. The lead error over the length of the screw is 0.006" maximum per foot.

ScrewsAvailable Nuts
Thread Name (inch)Thread Diameter (inch)Threads per InchThread StartsThread TypeThread Lead (inch)Matching AB NutMatching ABF NutMatching ABFT NutMatching SN NutMatching SNF NutRound FlangeRectangle FlangeLarge Triangle FlangeSmall Triangle Flange
Matching AB NutMatching ABF NutMatching ABFT NutMatching SN NutMatching SNF NutRound FlangeRectangle FlangeLarge Triangle FlangeSmall Triangle Flange
5/16-8-25/16INCH82stub acme0.25      
5/16-8-45/16INCH84stub acme0.5      
3/8-10-13/8 INCH101acme0.1    
3/8-10-23/8 INCH102acme0.2    
3/8-12-13/8 INCH121acme0.0833    
3/8-12-23/8 INCH122acme0.1667    
3/8-16-13/8 INCH161acme0.0625    
3/8-20-13/8 INCH201acme0.05    
3/8-4-53/8 INCH45stub acme1.25    
3/8-5-53/8 INCH55stub acme1    
3/8-8-13/8 INCH81stub acme0.125    
3/8-8-23/8 INCH82stub acme0.25    
3/8-8-33/8 INCH83stub acme0.375    
3/8-8-43/8 INCH84stub acme0.5    
7/16-8-27/16INCH82stub acme0.25    
7/16-8-47/16INCH84stub acme0.5    
5/8-8-15/8INCH81stub acme0.125     
5/8-8-25/8INCH82stub acme0.25     
5/8-8-45/8INCH84stub acme0.5     
1.0-10-11.0 INCH101acme0.1      
1.0-8-11.0 INCH81acme0.125      
1.0-5-11.0 INCH51acme0.2      
1.0-4-11.0 INCH41acme0.25      
1.0-10-51.0 INCH105ACME0.5      
1.0-10-101.0 INCH1010ACME1      

Linear guides and rails

Guides & RailsIf you are interested in the using the acme screw ranges, do not forget that we also supply the full range of linear guides and rails which can provide the load support in your linear mechanism. Offering excellent rigidity and parallelism during operation the guides can be used in both vertical and horizontal planes.

Following the link to that product page Guides

Thrust and radial bearings


Please do not forget to ask for our competitive support bearing prices !

 If you require further technical information, please do not hesitate to contact our sales engineers who will be more than happy to help you with your selection.

Greases and Lubricants

We provide a full range of quality, low cost lubricants for all our linear products including low vapour pressure greases for clean room and vacuum applications. For example the new Trigel line is specifically formulated to offer a lubrication solution for a wide range of linear motion applications. Please ask for further details.  Grease features include, Temperature range -30°C to 150°C,  Revolutionary multi-complex soap technology, Greatly extended lubrication intervals typically 3 times longer than conventional soap thickened greases. Good corrosion resistance. Some greases are supplied blue in colour for high visibility.

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