0 - 1 2 STANDARD BOLT & NUT TIGHTENING TORQUE Standard bolt and tightening torques are not indicated. Judge the standard tightening torque as shown below. 1. Find out the type of the bolt from the list below and then find the bolt tightening torque from the table. 2. The nut tightening torque can be judged from the mating bolt type. BOLT STRENGTH TYPE IDENTIFICATION METHOD 1. Identification by bolt shape 2. Identification by part No. Hexagon head bolt Parts No. 9161 1 - 40625 L L e n g t h (mml Diameter (mm) iameter Stud bolt Part No. 92 1 32 - 406 1 4 (mm) Diameter Length (mm) iameter Shape and class Class @ Bolt head No.
4 = 4T 5 = 5T 6 = 6T 7 = 7T 0 No mark 4T Hexagon flange bolt No mark 4T Hexagon head bolt 8 Two protruding lines 5T Hexagon flange bolt Two protruding lines 6T Hexagon head bolt 0 Three protruding lines 7T Welded bolt 4T Stud bolt k No mark 4T $- Grooved 6T