ISO 965-2 PDF

ISO is an International Organization for Standardization (ISO) standard for metric screw ISO Principles and basic data; ISO Limits of sizes for general purpose external and internal screw threads – Medium quality; ISO 3. ISO (E). INTERNATIONAL. STANDARD. ISO. Third edition. ISO general purpose metric screw threads — Tolerances —. Part 2. ISO ISO General Purpose Metric Screw Threads – Tolerances – Part 2: Limits of Sizes for General Purpose External and Internal Screw Threads – Medium.

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The minimum diameter of a thread which is diameter of the root of a male thread or crest of a female thread. In custom use, thread size, pitch and tolerance classes can be independently selected for custom engineering calculations. Need more than one copy? Internal thread minimum minor diameter [D 1min ]. Tolerance Class for Nut. Thread basic minor diameter [d 1D 1 ].

External thread minimum major diameter [d min ]. External thread maximum major diameter [d max io. The list of metric screw thread used in general engineering applications are given in the General Purpose Metric Screw Threads Table.


Use this tolerance class for commercial internal threads. The tolerance system refers to the basic profile according to ISO The surface at the top of the ridge connecting its two flanks.

In general engineering use, calculations can be done by selecting a standard metric thread size from the list which contains metric thread sizes in the diameter range from 1.

Minor diameter tolerance of internal thread. We have no document history for this standard.

Metric Thread Size and Tolerance Calculator

The maximum diameter of a thread which is diameter of the crest of a male thread or root of a female thread. Subscription pricing is determined by: Your Alert Profile lists the documents that will be monitored.

Pitch diameter tolerance of external thread.

Internal thread minimum major diameter [D min ]. Major diameter tolerance of external thread. Please first log in with a verified email before subscribing to alerts. External thread minimum pitch diameter [d 2min ]. If the document is revised or amended, you will be notified by email. External thread maximum pitch diameter [d 2max ]. For usage of the other classes, refer to ISO You may delete a document from your Alert Profile at any time.




The surface at the bottom of the groove connecting the adjacent flanks. For coated threads, the tolerances apply to the parts before coating, unless otherwise stated. External bolt thread root profile is given the “Definitions” section. External thread minimum minor diameter [d 3min ].

ISO – European Standards

Add to Alert PDF. External thread maximum truncation [C max ]. Thread basic pitch diameter [d 2D 2 ]. External thread maximum minor diameter [d 3max ]. In addition to basic size calculations of metric threads, tolerance calculations of different tolerance classes can be done according to ISO Tolerance Class for Bolt.