BS 1104:1957

BS 1104:1957

June 1957
Standard Current

Specification for general purpose Acme screw threads

Defines Acme thread; tables of basic sizes, limits and tolerances for standard series of single start threads ¼ in to 5 in diameter. Agrees with ASA B1.5:1952 except for pitches associated with diameters ¿ in, $9G in, 1 in, 1¼ in and 1½ in. 2G, 3G and 4G fits in the American standard included, together with finer class, 5G. Tables of effective diameter tolerances for extended range of diameter/pitch combinations are provided. From these and related tables limiting dimensions for any special diameter/pitch combination for single or multi-start Acme thread can be calculated.

Main informations

Collections

BSI English standards

Publication date

June 1957

Number of pages

42 p.

Reference

BS 1104:1957

ICS Codes

21.040.01   Screw threads in general

Print number

1
Sumary
Specification for general purpose Acme screw threads

Defines Acme thread; tables of basic sizes, limits and tolerances for standard series of single start threads ¼ in to 5 in diameter. Agrees with ASA B1.5:1952 except for pitches associated with diameters ¿ in, $9G in, 1 in, 1¼ in and 1½ in. 2G, 3G and 4G fits in the American standard included, together with finer class, 5G. Tables of effective diameter tolerances for extended range of diameter/pitch combinations are provided. From these and related tables limiting dimensions for any special diameter/pitch combination for single or multi-start Acme thread can be calculated.
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