FOREWORD STANDARD TIGHTENING TORQUE STANDARD TIGHTENING TORQUE STANDARD TIGHTENING TORQUES OF BOLTS AND NUTS The following charts give the standard tightening torques of bolts and nuts. Exceptions are given in section of DISASSEMBLY AND ASSEMBLY. 1 Kgm = 9.806 Nm # This torque table does not apply to the bolts with nylon packaging or other nonferrous metal wash- ers are to be used, or which require tightening to otherwise specified torque.
00-9 Thread diameter of bolt Width across flats mm mm kgm Nm 6 8 10 12 14 10 13 17 19 22 1.35 ± 0.15 3.2 ± 0.3 6.7 ± 0.7 11.5 ± 1.0 18.0 ± 2 .0 13.2 ± 1.4 31.4 ± 2.9 65.7 ± 6.8 112 ± 9.8 177 ± 19 16 18 20 22 24 24 27 30 32 36 28.5 ± 3 39 ± 4 56 ± 6 76 ± 8 94.5 ± 10 279 ± 29 383 ± 39 549 ± 58 745 ± 78 927 ± 98 27 30 33 36 39 41 46 50 55 60 135 ± 15 175 ± 20 225 ± 25 280 ± 30 335 ± 25 1320 ± 140 1720 ± 190 2210 ± 240 2750 ± 290 3280 ± 340