BSI - BS 1104
Specification for general purpose Acme screw threads.
|Publication Date:||5 June 1957|
|ICS Code (Screw threads in general):||21.040.01|
Defines Acme thread; tables of basic sizes, limits and tolerances for standard series of single start threads 1⁄4 in to 5 in diameter. Agrees with ASA B1.5:1952 except for pitches associated with diameters 3⁄8 in, 7⁄16 in, 1 in, 11⁄4 in and 11⁄2 in. 2G, 3G