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ISO 2903:1993
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ISO metric trapezoidal screw threads -- Tolerances

This standard has been revised by: ISO 2903:2016

Abstract

Specifies a tolerance system for threads according to ISO 2902; the system does not apply to threads with special requirements on axial displacement (e.g. lead screws); gives the structure of the system and tabulates pitches from 1.5 up to and including 44, comprises basic major diameters over 5.6 mm up to and including 355 mm; includes recommended tolerance classes for bolt and nut threads.

 

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