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SR EN 14399-3:2005

High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon bolt and nut assemblies

This part of this European Standard specifies, together with prEN 14399-1, the requirements for assemblies of high-strength structural bolts and nuts of system HR suitable for preloaded joints with large widths across flats, thread sizes M12 to M36 and property classes 8.8/8 and 10.9/10. Bolt and nut assemblies to this part of this European Standard have been designed to allow preloading of at least 0,7 fub´As according to ENV 1993-1-1 (Eurocode 3) and to obtain ductility predominantly by plastic elongation of the bolt. For this purpose the components have the following characteristics: 3 nut height according to style 1 (see ISO 4032) 3 thread length of the bolt according to ISO 888 Bolt and nut assemblies to this part of this European Standard include washers according to prEN 14399-6 or to prEN 14399-5 (under the nut only). NOTE Attention is drawn to the importance of ensuring that the bolts are correctly used if satisfactory result are to be ob-tained. For recommendations concerning proper application, reference to ENV 1090-1 is made. The test method for suitability for

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Status : Withdrawn
Approval date : 12/15/2005
Publish date : 12/17/2005
Withdrawal date : 11/30/2016
Number of pages : 24
ICS : 21.060.01 Fasternes in general,21.060.20 Nuts
Technical Committee : 59 - Screw threads, fasteners and bearings

Relations with other standards: