ISO INTERNATIONAL STANDARD 17607-6 First edition 2023-12 Steel structures Execution of structural steelwork - Part 6: Bolting Structures en acier - Exécution des charpentes et ossatures en acier- Partie 6: Boulonnage Reference number IS0 17607-6:2023(E) [so @IS02023 IS0 17607-6:2023(E) COPYRIGHT PROTECTED DOCUMENT @IS02023 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on or ISo's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2023 - All rights reserved IS0 17607-6:2023(E) Contents Foreword vi Introduction. ..vii 1 Scope. 2 Normative references 3 Terms and definitions. ..2 4 Execution specification and quality requirements ..2 4.1 General .2 4.2 Execution specification .2 5 Constituent products. .3 5.1 General 3 5.1.1 Selection of constituent products .3 5.1.2 Verification of conformance. .3 5.2 Structural bolting products.. 4 5.2.1 Property classes. 4 5.2.2 Structural bolting assemblies for non-pretensioned applications .4 5.2.3 Structural bolting assemblies for pretensioned applications. 4 5.2.4 Washers .4 5.2.5 Direct tension indicators .5 5.2.6 Alternative direct tension indicators. .5 5.2.7 Coatedstructuralboltingcomponents ..6 5.2.8 Atmospheric corrosion-resistant structural bolting components .6 5.2.9 Locking devices .6 5.2.10 Special structural fasteners 6 5.2.11 Packaging 5.2.12 Test reports. 7 5.2.13 Delivery and identification. .7 5.2.14 Storage of structural bolting components and assemblies 7 5.2.15 Reconditioning of structural bolting components and assemblies 7 5.3 Studs and shear connectors. .8 5.4 Anchorages. ..8 5.4.1 Foundation bolts 5.4.2 Other anchorage systems ..8 6 Preparation and assembly .8 6.1 General 6.2 Holes for structural bolting ..8 6.2.1 General ..8 6.2.2 Dimensions of holes. 9 6.3 Fayingsurfacesforbearing-typejoints .10 6.4 Preparation of friction surfaces in slip-resistant joints ..10 6.4.1 General 10 6.4.2 Surface preparation.. ..10 6.4.3 Precautions prior to assembly 10 6.5 Assembly.. .11 7 Structural bolting .12 7.1 General ..12 7.2 Joint types and assembly ..12 7.2.1 Jointtype .12 7.2.2 Fit of joint and shims 12 7.2.3 Packing plates ..12 7.2.4 Snugging of joint .13 7.2.5 Sequence of tightening ..13 7.2.6 Structural bolts. .14 @ IS0 2023 - All rights reserved iii IS0 17607-6:2023(E) 7.2.7 Nuts. 14 7.2.8 Washers 15 7.2.9 Locking methods. 17 7.3 Tightening of non-pretensioned bolts 18 7.4 Tightening of pretensioned bolts. 18 7.4.1 Bolting procedure for pretensioned bolts 18 7.4.2 Pretensioning tools 18 7.4.3 Minimum pretension 19 7.4.4 Bolting assembly k-class calibration 19 7.4.5 k-factor 19 7.4.6 Pre-installation verification testing 20 7.4.7 Torque method 20 7.4.8 Combined method 20 7.4.9 Spline-drive twist-off method 20 7.4.10 Direct tension indicator method 20 7.4.11 Turn-of-nut method. 20 7.5 Fit bolts .20 7.6 Temporary bolts. 21 7.7 Loss of pretension 21 7.8 Reuse of structural bolts 22 7.9 Use of special fasteners 22 7.10 Galling and seizure of stainless-steel structural bolts 23 8 Inspection, testing, and correction 23 8.1 General 23 8.2 Structural bolting inspection 23 8.2.1 Inspection prior to erection of steelwork 23 8.2.2 Inspection prior to installation of bolts. 24 8.2.3 Inspection after installation of bolts 24 8.2.4 Inspection of pretensioned bolts .24 8.2.5 Inspection of special structural fasteners and special methods 27 8.3 Correction. 28 8.3.1 Excessive coating thickness 28 8.3.2 Replacement of structural bolting components and assemblies 28 9 Documents required to claim conformity to this document 28 9.1 General 28 9.2 Declaration of conformity 28 Annex A (normative) Additional information,