BSI - BS 3643-1
Specification for ISO Metric Screw Threads - Principles and Basic Data
|Publication Date:||31 March 1981|
|ICS Code (Metric screw threads):||21.040.10|
Applies to single-start parallel screw threads having the ISO basic profile for triangular screw threads. Data for diameters from 1.0 mm to 300 mm are tabulated and an appendix gives the information necessary to calculate the limits of size for exceptions to the tabulated data.