NEN ISO 724 : 1999 C1 2009
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ISO GENERAL-PURPOSE METRIC SCREW THREADS - BASIC DIMENSIONS
01-12-2013
Defines the basic dimensions of metric threads in accordance with ISO 261. The basic dimensions are: a) basic major diameter of internal or external thread (nominal diameter); b) basic pitch diameter of internal or external thread; c) basic minor diameter of internal or external thread; d) height of fundamental triangle, pitch.
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