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DI0A-37 CHANGED BY EFFECTIVE DATE AFFECTED VIN GENERAL INFORMATION DI ENG SM - 2004.4 TIGHTENING TORQUE OF STANDARD BOLTS Tightening Torque By Bolt Specification Bolt Diameter M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 Pitch 0.5 0.7 0.8 1.0 1.25 1.25 1.5 1.25 1.75 1.5 1.5 1.5 1.5 1.5 1.5 2.0 Standard Tightening Torque 4T 5 12 24 41 88 190 190 350 330 550 830 1,200 1,700 2,300 2,900 2,800 7T 9 20 40 68 160 330 310 580 550 910 1,100 2,000 2,800 3,800 4,900 4,700 9T 13 30 57 99 230 470 450 840 790 1,300 2,000 2,900 4,000 5,400 7,000 6,800 Max. Allowable Tightening Torque 4T 7 16 32 55 130 260 250 460 440 730 1,100 1,600 2,200 3,000 3,900 3,800 7T 12 27 53 91 210 430 420 770 730 1,200 1,900 2,700 3,700 5,000 6,500 6,300 Tightening Torque (kg.cm) 9T 17 40 77 130 310 620 600 1,100 1,000 1,900 2,700 3,800 5,300 7,200 9,400 9,100 1. Metric bolt strength is embossed on the head of each bolt. The strength of bolt can be classified as 4T, 7T, 2. Observe standard tightening torque during bolt tightening works and can adjust torque to be proper 3. Determine extra proper tightening torque if tightens with washer or packing. 4. If tightens bolts on the below materials, be sure to determine the proper torque. • Aluminum alloy: Tighten to 80 % of above torque table. • Plastics: Tighten to 20 % of above torque table. Y220_0A034 |