Content with torque value

11 July 2017
High-strength structural bolting assemblies for preloading with specified k-Class shall be tightened using below methods (See BS EN 1090-2:2008+A1:2011, Table 20 for more details). Method k-Class Torque method K2 Combined method (torque / part-turn) K2 or K1 Direct Tension Indicators (DTI) K2, K1 or K0 k-Class K2 using Torque Method Torque method uses a torque wrench in two steps of assembling. km figure is required for calculating first tightening torque value and Vk is required for calculating final tightening torque.
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