BS 1157:1975

Recommendations for tapping drill sizes for use with fluted taps.

STANDARD published on 30.9.1975

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The information about the standard:

Designation standards: BS 1157:1975
Publication date standards: 30.9.1975
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: British technical standard
Category: Technical standards BS

Annotation of standard text BS 1157:1975 :

Sizes for ISO internal metric threads to BS 3643 (Parts 1, 2 and 3) and for internal threads to BS 21, 84, 93, 1580 (Parts 1, 2 and 3) and 2779. Alternative sizes in appendix. Status: Confirmed