DIN EN ISO 4017:2014-10

This standard specifies the characteristics of hexagon head screws with threads from M1,6 up to and including M64, of product grade A for threads M1,6 to M24 and nominal lengths up to and including 10d or up to and including 150 mm, whichever is the shorter, and product grade B for threads over M24 or nominal lengths over 10d or over 150 mm, whichever is the shorter. This standard is identical to the European Standard EN ISO 4017 which adopted International Standard ISO 4017 without any alterations. This standard has been prepared by ISO/TC 2 "Fasteners" in collaboration with CEN/TC 185 "Fasteners", the secretariats of which are held by DIN. The responsible German standardization committee is Working Committee NA 067-00-02 AA "Verbindungselemente mit metrischem Außengewinde" ("Fasteners with metric external threads") of the Standards Committee Fasteners (FMV) at DIN.