STANDARD TIGHTENING TORQUES 2. FITTINGS The tightening torques indicated below refer to fittings assembled on any material.
00-13 Straight end fittings “T” end fittings “L” end fittings 90° end fittings Thread size Wrench Torque Nm ±10% Wrench Torque Nm ±10% Wrench Torque Nm ±10% Wrench Torque Nm ±10% METRIC THREADS M10x1.25 17 14 14 14 14 14 14 14 19 14 17 14 17 14 M12x1.25 19 30 17 30 17 30 17 30 M14x1.5 19 40 19 40 19 40 19 40 M16x1.5 22 48 22 48 22 48 22 48 M18x1.5 24 58 24 58 24 58 24 58 M20x1.5 27 65 27 65 27 65 27 65 M22x1.5 30 73 30 73 30 73 30 73 M26x1.5 36 95 36 95 36 95 36 95 M27x2 36 100 36 100 36 100 36 100 M33x2 41 160 41 160 41 160 41 160 M42x2 50 250 50 250 50 250 50 250 M48x2 60 305 60 305 60 305 60 305 THREADS IN INCHES G 1/8” 17 13 14 13 14 13 14 13 19 13 G 1/4” 19 37 19 37 19 37 19 37 22 37 G 3/8” 24 53 24 53 24 53 24 53 G 1/2” 27 73 27 73 27 73 27 73 30 73 G 3/4” 36 100 36 100 36 100 36 100 G 1” 41 160 41 160 41 160 41 160 46 160 G 1 1/4” 50 250 50 250 50 250 50 250 G 1 1/2” 60 305 60 305 60 305 60 305