BS 3643-1:1981

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.Cross References:BS 919:Part 3BS 3643:Part 2BS 6104:Part 1 BS 6293:Part 1BS 6293:Part 2BS 6528PD 6494ISO 965/2Incorporates the following:AMD 3910 published 31 May 1982AMD 4701 published 31 December 1984