Basic norms of interchangeability. ISO general purpose metric screw threads. Tolerances. Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing
GOST R certification system. Register of quality systems. Certification procedure of quality management systems to accordance with GOST R ISO 9001-2008 (ISO 9001:2008)