DIN ISO Title (german) Metrisches ISO-Gewinde allgemeiner Anwendung – Toleranzen – Teil 1: Prinzipien und Grundlagen (ISO ). 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 GENERAL PURPOSE METRIC SCREW THREADS. Limits of Sizes for Bolt and Nut Threads. Reference # ISO /, # ISO / Coarse and.

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Din iso 965-1 Diameter x Pitch – Tolerance class for pitch diameter – Tolerance class for major diameter M10 x 1 5g 6g. Internal thread minimum minor diameter [D 1min ]. External thread maximum pitch diameter [d 2max ]. Pitch diameter tolerance of external thread.

External thread minimum truncation [C min din iso 965-1. The theoretical profile of a screw thread in an axial plane defined by theoretical dimensions and 9655-1 common to internal and external threads.

The minimum diameter of a thread which is diameter of the root of a male thread or crest of a female thread. External thread minimum pitch diameter [d 2min ]. Tolerance class can be selected among the alternatives 6e, 6f, 6g and din iso 965-1 for bolts and 5H, 6H, 7H and 6G for nuts.

Isso din iso 965-1 maximum truncation [C max ]. General Engineering Use Custom Use.


ISO metric screw thread – Wikiwand

Height of fundamental triangle [H]. Use this tolerance class for commercial external bolt threads. For coated threads, the tolerances apply to the parts before coating, unless djn stated. The surface at the bottom of the groove connecting the adjacent flanks. In general engineering use, calculations can be done din iso 965-1 selecting a standard metric thread size from the list which contains metric thread sizes in the diameter range from 1.

External bolt thread root profile is given the “Definitions” section. Din iso 965-1 diameter tolerance din iso 965-1 internal thread. The maximum diameter of a thread which is diameter of the crest of a male thread or root of a female thread. Internal thread minimum major diameter [D min ].

M10 x 1 6g. Thread basic pitch diameter [d 2D 2 ]. External thread minimum minor diameter [d 3min ].


In addition to basic size calculations of metric threads, tolerance calculations of different tolerance classes can be done according to ISO For external bolt threads; The actual root din iso 965-1 shall not at any point transgress the basic profile. External thread maximum minor diameter [d 3max ].

Thread basic minor diameter [d 1D 1 ]. The surface at the top of the ridge connecting its two flanks. Tolerance Class for Bolt.

Metric Thread Size and Tolerance Calculator

Use this tolerance class for commercial internal threads. Internal thread minimum pitch diameter [D 2min ]. External thread minimum major diameter [d min ]. The user shall use 6g for bolts and 6H for nuts unless there is a din iso 965-1 requirement to use other tolerance classes.


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Fasteners of property class 8. In rin use, thread size, pitch and tolerance classes can be din iso 965-1 selected for custom engineering calculations. Pitch diameter tolerance of internal thread.

Major diameter tolerance of external thread. The list of metric screw thread used in general engineering applications are given in the General Purpose Metric Screw Threads Table. Tolerance Din iso 965-1 for Din iso 965-1.

For usage of the other classes, refer to ISO After coating, the actual thread 9965-1 shall not at any point transgress the maximum material limits for positions h or H.

For more information on Metric screw threads including thread form, definitions, limits and fits for threads, standard series and combinations, thread designation, basic din iso 965-1, dimensional effect of coating, formulas and details of MJ profile, please refer to pages – of Machinery’s Handbook, 30th.

Internal thread maximum pitch diameter [D 2max ].