This document specifies, together with EN 14399-1, the requirements for assemblies of high-strengthstructural bolts and nuts, with large width across flats, of system HR or HV, including the requirements for thegeneral dimensions, tolerances, materials and performance for two grades, H8 and H10, of compressiblewasher-type direct tension indicators, nut face washers and bolt face washers suitable for preloaded joints.The assemblies include the nominal thread sizes M12 up to and including M36 and property classes 8.8/ 8,8.8/10 and 10.9/10.