ISO 898-7 PDF

May 13, 2020 By:

Buy GOST R ISO MECHANICAL PROPERTIES OF FASTENERS – PART 7: TORSIONAL TEST AND MINIMUM TORQUES FOR BOLTS AND. Find the most up-to-date version of ISO at Engineering Purchase your copy of BS EN , ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British.

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All standards are subject to revision, and parties to sio based on this part of IS0 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Part 8898-7 is the same as part 2 except for fine threaded nuts that range from M8 to M It also excludes set screwswhich are covered under part 5.

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: Each member body interested in a subject for which a technicai committee has been established has the right to be represented on that committee.

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The minimum breaking torques hexagon socket set screws.

Nuts with specified proof load values – Fine pitch thread Part 7: Mechanical properties of fasteners. The faster, easier way to work with standards. With exception to part 7, which defines test standards, ios parts of this standard define properties for fasteners made of carbon steel and alloy steel. 89-87 who bought this product also bought BS EN The standards do not cover fasteners that would otherwise apply but require special properties, such as weldability or corrosion resistance.

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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. This page oso last edited on 6 Januaryat Set screws and similar threaded fasteners not under tensile stresses [4] 6.

Accept and continue Learn more about the cookies we use and how to change your settings. Torsional test and minimum torques with nominal diameters 1 mm to 10 mm for bolts and screws only. IS0 consists of the following ical properties of fasteners: Click to learn more. You may find similar items within these categories by selecting from the choices below:.

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We use cookies to make our website easier to use and to better understand your needs. At the time of publication, the edition indicated was valid. Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm.

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The test applies to bolts and screws with thread less than M3 for which no breaking and proof isso 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. Tests have shown that the torques can also be used for bolts and screws with thread tolerances 6f and 6e. ISO – Mecha By using this site, you agree to the Terms of Use and Privacy Policy.

Find Similar Items This product falls into the following categories. Bolts, screws and studs Part 2: Search all products by. Set screws and similar threaded fasteners not under tensile stresses [4]. Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread [2].

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

The test result shall not be influenced by head friction or by thread friction. Apply the torque in a continuously increasing manner. No part of this publication may be reproduced or by any means, electronic or mechanical, including photocopying permission in writing from the publisher.