BS 1104:1957
Current
The latest, up-to-date edition.
Specification for general purpose Acme screw threads
Hardcopy , PDF
English
06-05-1957
Co-operating organizations
Foreword
Section 1 - Specification
1 Scope
2 Definitions
3 Basic and design forms of thread
4 Nominal sizes
5 Basic diameters
6 Standard series
7 Classes of threads
8 Clearances, allowances, tolerances and limiting
dimensions
9 Length of engagement
10 Chamfers
11 Special diameters and pitches
12 Designations
Section 2 - Gauging of Acme screw threads
13 Gauges for screws
14 Gauges for nuts
15 Concentricity
16 Lengths of GO screw gauges
17 Tolerances for gauges
18 Gauge limits for the standard series of general
purpose Acme threads
Appendix A
Appendix B - Effect of pitch and angle errors on
effective diameter
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