Introduction - Section 1 01/02 OM1020 Page 1-10 TABLE I. STANDARD TIGHTENING TORQUE FOR METRIC HEX HEAD CAPSCREW AND NUT ASSEMBLY Capscrew Thread Diameter (mm) Width Across Flat (mm) Kilogram meters (kg.m) Tolerances ±10% Newton meters (N.m) Tolerances ±10% Foot Pounds (ft.lbs.) Tolerances ±10% 6 10 1.35 13.2 10 8 13 3.2 31.4 23 10 17 6.7 65.7 48 12 19 11.5 112 83 14 22 18.0 177 130 16 24 28.5 279 206 18 27 39.0 383 282 20 30 56.0 549 405 22 32 76.0 745 550 24 36 94.5 927 684 27 41 135 1320 975 30 46 175 1720 1266 33 50 225 2210 1630 36 55 280 2750 2025 39 60 335 3280 2420 This Table represents standard values only.
Do not use these values to replace torque values which are specified in the Service Manual instructions. TABLE II. TIGHTENING TORQUE FOR SPLIT FLANGE BOLTS Capscrew Thread Diameter (mm) Width Across Flat (mm) Kilogram meters (kg.m) Tolerances ±10% Newton meters (N.m) Tolerances ±10% Foot Pounds (ft.lbs.) Tolerances ±10% 10 14 6.7 65.7 48 12 17 11.5 112 83 16 22 28.5 279 206 This Table represents standard values only. Do not use these values to replace torque values which are specified in the Service Manual instructions. TABLE III.
TIGHTENING TORQUE FOR FLARED TUBE AND HOSE FITTINGS Thread Diameter of Nut (mm) Width Across Flat (mm) Kilogram meters (kg.m) Tolerances ±10% Newton meters (N.m) Tolerances ±10% Foot Pounds (ft.lbs.) Tolerances ±10% 14 19 2.5 25 18 18 24 5 50 36 22 27 8 80 58 24 32 14 140 101 30 36 18 175 130 33 41 20 195 145 36 46 25 245 180 42 55 30 295 215