High-strength structural bolting assemblies for preloading - System HRC. Bolt and nut assemblies with calibrated preload Ingestion-build-221493 BS EN 14272 provides practical

BS EN 14272 provides practical spreadsheets

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High-strength structural bolting assemblies for preloading - System HRC. Bolt and nut assemblies with calibrated preload Ingestion-build-221493 BS EN 14272 provides practical1 Scope This document specifies, together with EN 143991 and EN 143992, the requirements for assemblies of high strength structural bolts and nuts of system HRC suitable for preloaded joints, with hexagon head (large width across flats), cup head or countersunk head, thread sizes M12 to M36 and property class 10. 9 10. Bolting assemblies in accordance with this document have been designed to allow preloading of at least 0,7 fub As1) according to EN