OM1005.2 7/96 Introduction - Section 1 Standard Charts and Tables Page 1-9 STANDARD CHARTS AND TABLES This manual provides dual dimensioning for most specifications. U.S. standard units are specified first, with metric (SI) units in parentheses. References throughout the manual to standard torques or other standard values will be to one of the following Charts or Tables. Effect Of Special Lubricants On Fasteners And Standard Torque Values Haulpak Division does NOT recommend the use of special "friction-reducing" lubricants such as, "Copper Coat", "Never Seize", and other similar products on the threads of standard fasteners where "standard torque" values are applied.
The use of special "friction-reduc- ing" lubricants will significantly alter the clamping force being applied to fasteners during the tightening proc- ess. If special "friction-reducing" lubricants are used with the "Standard Torque" values listed below in Table I (and most Haulpak service manuals), excessive stress and possible breakage of the fasteners may result . For values not shown in any of the charts or tables, standard conversion factors for most commonly used measurements are provided in TABLE X, page 1-13. INDEX OF TABLES TABLE I . . . . . . . . . . . Standard Torque Chart 1-9 TABLE II . . Torque Conversions (ft.lbs -- N . m) 1-10 TABLE IIA . Torque Conversions (ft.lbs -- kg .
m) 1-10 Table I specifies "Lubricated Threads" for the Standard Torque values listed; however, unless instructions spe- cifically recommend otherwise, these standard torque values are to be used with simple lithium base chassis grease (multi-purpose EP NLGI) or a rust- preventive grease (see list, page 1-13) on the threads . TABLE III . . . . . . . . Temperature Conversions 1-10 TABLE IV . . . . . JIC Swivel Nuts Torque Chart 1-11 TABLE V . . . . . . . . Pipe Thread Torque Chart 1-11 TABLE VI . . . . . . . . O-Ring Boss Torque Chart 1-11 TABLE VII . . . . O-Ring Face Seal Torque Chart 1-11 TABLEVIII . .
Pressure Conversions (psi -- kPa) 1-12 Standard Torque values are not to be used when "Turn-of-the-Nut" tightening procedures are rec- ommended . TABLE IX . . Pressure Conversions (psi -- MPa) 1-12 TABLE X . . . Common Conversion Multipliers 1-13 TABLE I STANDARD TORQUE CHART SAE HEX HEAD CAPSCREW AND NUT ASSEMBLY (LUBRICATED THREADS) TOLERANCES ± 10% GRADE 5 GRADE 8 CAP- SCREW THREAD SIZE TORQUE -- GRADE 5 TORQUE -- GRADE 8 CAPSCREW THREAD SIZE TORQUE -- GRADE 5 TORQUE -- GRADE 8 ft. lbs. kg.m N.m ft. lbs. kg.m N.m ft. lbs. kg.m N.m ft. lbs.
kg.m N.m 1/4--20 7 0.97 9.5 10 1.38 13.6 3/4--16 235 32.5 319 335 46.3 454 1/4--28 8 1.11 10.8 11 1.52 14.9 7/8--9 350 48.4 475 500 69.2 678 5/16--18 15 2.07 20.3 21 2.90 28 7/8--14 375 51.9 508 530 73.3 719 5/16--24 16 2.21 22 22 3.04 30 1.0--8 525 72.6 712 750 103.7 1017 3/8--16 25 3.46 34 35 4.84 47 1.0--12 560 77.4 759 790 109.3 1071 3/8--24 30 4.15 41 40 5.5 54 1.0--14 570 78.8 773 800 110.6 1085 7/16--14 40 5.5 54 58 8.0 79 1 1/8--7 650 89.9 881 1050 145 1424 7/16--20 45 6.2 61 62 8.57 84 1 1/8--12 700 96.8 949 1140 158 1546 1/2--13 65 9 88 90 12.4 122 1 1/4--7 910 125.9 1234 1480 205 2007 1/2--20 70 9.7 95 95 13.1 129 1 1/4--12 975 134.8 1322 1580 219 2142 9/16--12 90 12.4 122 125 17.3 169 1 3/8--6 1200 166 1627 1940 268 2630 9/16--18 95 13.1 129 135 18.7 183 1 3/8--12 1310 181 1776 2120 293 2874 5/8--11 125 17.3 169 175 24.2 237 1 1/2--6 1580 219 2142 2560 354 3471 5/8--18 135 18.7 183 190 26.2 258 1 1/2--12 1700 235 2305 2770 383 3756 3/4--10 220 30.4 298 310 42.8 420 1 ft.
lbs. = 0.138 kg.m = 1.356 N.m