FOREWORD STANDARD TIGHTENING TORQUE 12 GRADE 8 PHOSPHATE COATED HARDWARE 00 This chart provides tightening torque for general purpose applications using original equipment standard hardware as listed in the Parts Books for the machine involved. DO NOT SUBSTITUTE . Original equipment standard hardware is defined as Grade 8, coarse thread bolts and nuts and thru hardened flat washers (Rockwell C 38-45), all phosphate coated and assembled without supplemental lubrication (as received) condition. The torques shown also apply to the following; Phosphate coated bolts used in tapped holes in steel or gray iron.
Phosphate coated bolts used with phosphate coated prevailing torque nuts (nuts with distorted threads or plastic inserts). Phosphate coated bolts used with cop- per plated weld nuts. Markings on bolt heads or nuts indicate material grade only and are not to be used to determine required torque. STANDARD METRIC FASTENERS 00 This chart provides tightening torque for general purpose applications using original standard hardware as listed in the Parts Book for the machine involved. DO NOT SUBSTITUTE . Original standard hardware is defined as metric class 10.9 bolts and class 10.0 nuts and thru flat washers (Rockwell C 38-45), all phosphate coated and assembled without supple- mental lubrication.
The torques shown also apply to the following; Phosphate bolts used in tapped holes in steel or gray iron, with phosphate coated prevailing torque nuts or with cop- per plated weld nuts. Markings on bolt heads or nuts indicate material class only and are not to be used to determine required torque.
00-14 PC300LL-6 NOMINAL THREAD STANDARD TORQUE ± 10% N•m lbf ft 1/4 10 8 5/16 21 16 3/8 38 28 7/16 60 45 1/2 92 70 9/16 130 100 5/8 180 140 3/4 325 240 7/8 520 590 1 780 580 1-1/8 1110 820 1-1/4 1565 1160 1-3/8 2050 1520 1-1/2 2720 2020 1-3/4 3380 2510 2 5080 3780 NOMINAL THREAD STANDARD TORQUE ± 10% N•m lbf ft 6 10 7 7 16 12 8 23 17 10 46 34 12 80 60 14 125 90 16 200 150 18 275 200 20 385 290 22 530 390 24 670 500 27 980 730 30 1330 990 33 1790 1330 36 2325 1730 39 3010 2240