Content with hexagon head screws

27 April 2016
Selected sizes used for CE (UKCA) marked BS EN 15048 Non-preloaded structural bolting assemblies Diameter (d) M12 M16 M20 M22 M24 M27 M30 M33 M36 Thread pitch (P) 1.75 2 2.5 2.5 3 3 3.5 3.5 4 k (nom) 7.5 10 12.5 14 15 17 18.7 21 22.5 k (Grade A) 7.32-7.68 9.82-10.18 12.285-12.715 13.785-14.215 14.785-15.215 – – – – k
Read more about ISO 4017 Hexagon head screws - Basic dimensions