Lead & Acme Screws

Lead & Acme Screws

A great lead nut can’t perform without a top quality lead screw.  Thomson BSA® screws are constructed of 300 series stainless steel and offer a high luster surface finish with excellent corrosion resistance.  Standard sizes are available from 3/16” to 3” diameters.  All lead screws are precision rolled to achieve lead accuracies of up to .003 inch per foot.  We use optimized thread forms on most sizes to achieve the best possible performance when used with our polymer nuts.  We also configure the ends of the majority of the screws we ship to customer requirements. 

Lead & Acme Screw Specifications (Imperial Units):

Dia.
(in)
Lead (inch, unless otherwise noted)
.050 .0625 .063   2
mm
.083 .100 .125 .167 .200 .250 .375 .500 .800 1.00 1.20 2.00
3/16 X    
1/4 X X X X    
5/16 X X X X    
3/8 X X X X X X X X X X X  
7/16 X X X    
1/2 X X X X X X X    
5/8 X X X X X    
3/4 X X X X X X   X
1 X X X X X X    
1 1/4 X X    
1 1/2   X X X X    
2 X    
2 1/4 X    
2 1/2 X    
2 3/4 X    
3   X    

Lead & Acme Screw Specifications (Metric Units):

Dia.
(mm)
Lead (mm)
2 3 4 5 6 8 10 12 15 16 20 25 35 45
10 X X X X X X X
12 X X X X X X X X
16 X X X X X X
20 X X X X X X
24 X

Lead & Acme Screw Highlights:

  • Precision rolled to achieve lead accuracy of up to .003 inch per foot
  • Optimized thread forms on most sizes
  • 300 series stainless steel
  • High luster surface finish with excellent corrosion resistance