Transcription of TIGHTENING TORQUES FOR IMPERIAL (U.S.) …
1 TIGHTENING TORQUES FOR IMPERIAL ( ) BOLTSof yield strength (Sy)IMP RIALD iameter (in) ( )1/4"5/16"3/8"7/16"1/2"9/16"5/8"3/4"7/8" 1"1 1/8"1 1/4"1 3/8"1 1/2"1 5/8"1 3/4"1 7/8"2"2 1/4"2 1/2"2 3/4"3"NO. THREADS / IN (NC) 4 4 STRESS AREA (As) in in (KSI)LUBR. TIGHTENING torque in Lbs ftMultiply by to obtain N*mGRADE 762 1012 1253 1596 1944 2398 3507 4799 6513 572 759 940 1197 1458 1799 2631 3599 4885 6445 OGRADE 1596 1944 2398 3507 4799 6513 1197 1458 1799 2631 3599 4885 6445 EGRADE 1486 1948 2586 3202 4077 4969 6129 8964 12263 16644 21960 GRADE 1114 1461 1939 2402 3058 3727 4597 6723 9197
2 12483 16470 TGRADE 5097 6211 7661 11205 15329 20805 3823 4658 5746 8403 11497 15604 20587 TGRADE 5762 7021 8661 12666 17328 23519 4321 5266 6495 9499 12996 17639 23273 RASTM 18 31 50 77 111 153 271 436 13 24 38 57 83 114 203 327 28 50 8112317724543570010501488210027523654452 5 5762 7021 8661 12666 17328 23519 21 38 609213318432652578711161575206427403393 4321 5266 6495 9499 12996 17639 23273 ASTM THREADS / IN (NF)282424202018181614141212121212121212 12121212 STRESS AREA (As) in in (KSI)
3 LUBRIFIC TIGHTENING torque in Lbs ftMultiply by to obtain N*mGRADE 868 1138 1460 1837 2274 2776 3990 5514 7384 651 854 1095 1378 1706 2082 2992 4136 5538 7226 IGRADE 1837 2274 2776 3990 5514 7384 1378 1706 2082 2992 4136 5538 7226 TGRADE 1645 2217 2909 3731 4695 5813 7094 10196 14092 18871 24623 HGRADE 1234 1663 2182 2798 3522 4359 5321 7647 10569 14153 18468 RGRADE 6635 8213 10025 14408 19912 26665 4976 6160 7518 10806 14934 19999 26096 AASTM 20 36 56 86 123 173 302 481 15 27 42 65 92 130 227 361 31 57 9013919827748577311781669232531334111527 2 6635 8213 10025 14408 19912 26665 24 43 6810414820836458088412511744235030833954 4976 6160 7518 10806 14934 19999 26096 ASTM
4 2335 2891 3528 5070 7007 9384 12245 Lubrication : NL = Non-lubricated L = Lubricated or NewAs = * ( D - ( )) D = bolt diameter, in = % * Sy * As * 1000 (% = % of yield strength, generally 80%)C = F * * D = % * Sy * As * * D * 1000 / 12As = stress area of bolt, in in n = no. threads / = tensile force , in LbsC = TIGHTENING torque , IN N*mC:\Documents and Settings\Alain\Mes documents\Couple de , by = yield strength, in KSI = Friction coefficientNotice: ABMS verify the accuracy of information we put on our website; however, errors may occur and the end user assumes all risk and liability from the use of this Consultants inc.
5 , Consultant en ing nierie m canique. 39, de la Baie, Granby, QC, J2G 8C8T l. (450) 378-6963, T l c. (450) 378-9421, Courriel : Internet : TORQUES FOR METRIC BOLTS of yield strength (Sy)M TRIQUED iameter (mm)681012141618202224273033363942454852 56606468M6M8M10M12M14M16M18M20M22M24M27M 30M33M36M39M42M45M48M52M56M60M64M68 PITCH (mm) STRESS AREA (As) In mm 2037588411515719224530335345956169481797 611211306147317582030236226763055 MATERIALSy (MPa)LUBR. TIGHTENING torque in Lbs ftMultiply by to obtain N*mCLASS 1456 1752 2265 2817 3512 4244 5149 NClass 1092 1314 1699 2113 2634 3183 , See note 1 AClass , See note 1197250366496675 867 1123 1389 1734 2086 2697 3354 4181 5053 , See note.
6 See note 1148187274372506 651 842 1042 1300 1565 2023 2515 3136 3789 599 878 1191 1621 2082 2694 3333 4161 5007 6472 8049 10035 12126 14711 PClass 449 659 893 1215 1561 2021 2500 3121 3755 4854 6037 7526 9095 11033 IASTM PITCH (mm) STRESS AREA (As) In mm 2239649212516721627233340151464278494011 1012941493181020102301248528513242 MATERIALSy (MPa)LUBR. TIGHTENING torque in Lbs ftMultiply by to obtain N*mCLASS 1664 2153 2591 3193 3695 4521 5463 IClass 1248 1614 1943 2395 2771 3391 , See note 1 EClass , See note 1216284410568763 998 1277 1604 1981 2563 3084 3801 4398 5383 , See note.
7 See note 1162213307426572 749 958 1203 1486 1922 2313 2851 3299 4037 681 983 1364 1832 2396 3065 3849 4756 6150 7402 9123 10556 12919 15609 TClass 511 738 1023 1374 1797 2299 2886 3567 4613 5551 6842 7917 9689 11707 CASTM : NL = Non-lubricated L = Lubricated or NewAs = * Pi * (D - ( * Pitch))^2D = bolt diameter, in = % * Sy * As (% = % of yield strength, generally 80%)C = F* *D = % * Sy * As * * D/1000Sy = yield strength, in MPaNote 1 : Stainless, class 70, Sy=250 MPa when D > 22mmAs = stress area of bolt, in mm P = Pitch in mmF = tensile force, in NC = TIGHTENING torque IN N*m = friction coefficient C:\Documents and Settings\Alain\Mes documents\Couple de , by.
8 ABMS verify the accuracy of information we put on our website; however, errors may occur and the end user assumes all risk and liability from the use of this Consultants inc., Consultant en ing nierie m canique. 39, de la Baie, Granby, QC, J2G 8C8T l. (450) 378-6963, T l c. (450) 378-9421, Courriel : Internet.
