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Essai de torsion et couples minimaux de rupture diamktre nominal de filetage de 1 mm 9 10 mm Reference number IS0 Tests have shown that the torques can also be used for bolts and screws with thread tolerances 6f and 6e. IS0 consists of the following ical properties of fasteners: For the note time being, minimum breaking torques can specified for property classes 8.

Bolts, screws and studs Part 2: The minimum breaking torques hexagon socket set screws. Set screws and similar threaded fasteners not under tensile stresses [4] 6. Retrieved from ” https: Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Please download Chrome or Firefox or view our browser tips. It also excludes set screwswhich are covered under part 5. The properties are defined for M1. Nuts with specified proof load values — Fine pitch thread [5] 7.

Ml0 x 1 and Ml0 x 1,25 which allow an evaluation of the functional properties of the bolts and screws. Set screws and similar threaded fasteners not under tensile stresses [4]. Views Read Edit View ios. This page was last edited on 6 January isoo, at The faster, easier way to work with standards. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.

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Each member body interested in a subject for which a technicai committee has been established has the right to be represented on that committee. Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread [2]. Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm Status: We use cookies to make our website easier to use and to better understand your needs. Set screws and similar threaded fasteners jso under tensile stresses Part 6: Nuts with specified proof load values — Coarse thread [3] 5.

ISO – Wikipedia

No part of this publication may be reproduced or by any means, electronic or mechanical, including photocopying permission in writing from the publisher. Part lso defines the mechanical properties for coarse threaded nuts up to an M39 size and a height of at least half the nominal diameter.

At the time of publication, the edition indicated was valid. Apply the torque in a continuously increasing manner.

The standards do not cover fasteners that would otherwise apply but require special properties, such as weldability or corrosion resistance. Part 5 defines the mechanical properties for set screws and other fasteners not under tensile stresses.

Worldwide Standards We can source any standard from anywhere in the world. You jso find similar items within these categories by selecting from the choices below:.

Take the smart route to manage medical device compliance. The test applies to bolts and screws with thread less than M3 for which no breaking and proof loads are indicated In IS0as well as to short bolts and screws with nominal diameters 3 mm to 10 mm which cannot be subjected to a tensile test.

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The work of preparing International Standards is normally carried ios through IS0 technical committees.

The test result shall not be influenced by head friction or by thread friction. From Wikipedia, the free encyclopedia. Mechanische Eigenschaften von Verbindungselementen. Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread [2] 2. Nuts with specified proof load values — Fine pitch thread [5].

Part 6 is the same as part 2 except for fine threaded nuts that range from M8 to M Clamp the bolt or screw into the test device over at least two full threads, having a free thread length of at least one thread diameter present between the head of the bolt or screw and the threaded insert see figure I. Learn more about the cookies we use and how to change your settings.

BS EN 20898-7:1995, ISO 898-7:1992

Part 1 does not specify properties for fasteners that have head geometries that reduce the shear strength of the fastener, such as low head screws and countersunk heads. Also since bolts and screws with threads greater than M3 LID to anproximately Ml0 often cannot be subjected to a tensile test or proof load test due to their short lengths, minimum, breaking torques have been specified for bolts and screws Ml to Ml0 ineluding the fine pitch threads M8 x 1: Part 1 defines the mechanical properties of bolts, 8898-7and studs.

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Last modified: June 5, 2020