BS ISO 2903:2016

This standard BS ISO 2903:2016 ISO metric trapezoidal screw threads. Tolerances is classified in these ICS categories:

• 21.040.10 Metric screw threads

This document specifies a tolerance system for metric trapezoidal screw threads in accordance with ISO 2902 . The tolerances refer to the design profile in accordance with ISO 2901 .

The tolerance system does not apply to trapezoidal screw threads with special requirements on axial displacement, for example, machine tool lead and feed screws and nuts.