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BSI BS 3643-2:2007

ISO metric screw threads. Limits and tolerances for coarse pitch threads
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BSI BS 3643-2:2007

ISO metric screw threads. Limits and tolerances for coarse pitch threads

PUBLISH DATE 2014
PAGES 48
BSI BS 3643-2:2007

This part of this BS 3643 specifies the fundamental deviations, tolerances and limits of size for the tolerance classes 4H, 5H, 6H and 7H for internal threads and 4h, 6g and 8g for external threads where appropriate for:

  • a coarse pitch series with the range 1 mm to 68 mm diameter;

  • a fine pitch series with the range 1 mm to 33 mm diameter;

  • a constant pitch series with the range 8 mm to 300 mm diameter.

For certain diameter/pitch combinations, the fundamental deviations, tolerances and limits of size for tolerance class 4H for internal threads and tolerance classes 6h and 4g for external threads, primarily for aerospace use, are specified in Annex A.

SDO BSI: British Standards Institution
Document Number 3643-2
Publication Date June 30, 2014
Language en - English
Page Count
Revision Level
Supercedes
Committee FME/9
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