1. General 1.8 Tightening Torques for Standard Bolts and Nuts (Lubricating oil not applied) Nominal thread Tightening Item diameter x pitch torque Remarks Nm(kgf-m) Hexagon bolt (7T)lnut M6xl 9.8-I 1.8 (1.0-l .2) 1) Use 80% of the value at M 8 x 1.25 22.5-28.4 (2.3-2.9) left when the tightening side is aluminum. MlOx 1.5 44.1-53.9 (4.5-5.5) 2) Use 60% of the value at left for 4T bolts and lock M12x1.75 78.4-98 (8.0-10) nuts. PT plug l/8 9.8 (1 .O) l/4 19.6(2.0) 318 29.4(3.0) l/2 58.8(6.0) Pipe joint bolt M8 12.7-l 6.7 (1.3-l .7) Ml2 24.5-34.3 (2.5-3.5) Ml4 39.2-49 (4.0-5.0) Ml6 49-58.8 (5.0-6.0) 1-13