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BS 3643-2:2007 2014

BS 3643-2:2007 2014

$189.07

ISO metric screw threads – Specification for selected limits of size

Published By Publication Date Number of Pages
BSI 2014 48
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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.

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BS 3643-2:2007 2014
$189.07