Tightening Torque Tightening torque of horn type connecting nut (Use the torque wrench) 20-8 Screw Diameter Subtense Width Tightening Torque mm mm Nm kgm 14 18 22 24 30 33 36 42 19 24 27 32 36 41 46 55 24. 5±4.9 49±19.6 78.5±19.6 137.3±29.4 176.5±29.4 196.1±49 245.2±49 294.2±49 2.5±0.5 5±2 8±2 14±3 18±3 20±5 25±5 30±5