This International Standard specifies selected sizes for screws, bolts and nuts in the diameter range from 1 mm to 64 mm of ISO general purpose metric screw threads (M) having basic profile according to ISO 68-1.

These selected sizes are recommended also for general engineering use.

These screw threads are selected from ISO 261.

For thread designations see ISO 965-1.

General information

  • Status :  Under development
  • Edition : 3
    Number of pages : 4
  • :
    ISO/TC 1
    Screw threads
  • 21.040.10
    Metric screw threads

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal:

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