INTRODUCTION
TorqueSpecicationTables
StandardBoltHardware&HydraulicConnectorTorques,SpecicationsandInformation
Thisspecicationestablishesgeneraltorquevaluestobeusedinboltedjointsformetricandinchhardware.This
specicationisassumedtoapplyunlessanotherspecication(standardorspeciedrequirement)isindicatedinthe
repairmanual.
NOTE:TheseStandardsdonotincludeelectricalorhydrauliccomponents,theyarereferredtointheirspeciccharts
ortables.
INCH’NON-FLANGED’HARDWAREANDLOCKNUTS{MINIMUMHARDWARETIGHTENINGTORQUES}
INNEWTON-METERS(FOOT-POUNDS)FORNORMALASSEMBLYAPPLICATIONS
SAEGRADE2SAEGRADE5SAEGRADE8LOCKNUTS
Nominal
Size
Unplated
orPlated
Silver
Plated
w/ZnCr
Gold
Unplated
orPlated
Silver
Plated
w/ZnCr
Gold
Unplated
orPlated
Silver
Plated
w/ZnCr
Gold
Gr.B
w/Gr5Bolt
Gr.C
w/Gr8Bolt
1/46.2(55)*8.1(72)*9.7(86)*13(112)*14(121)*18(157)*8.5(75)*12.2(109)*
5/1613(115)*17(149)*20(178)*26(229)*28(21)37(27)17.5(155)*25(220)*
3/823(17)30(22)35(26)46(34)50(37)65(48)31(23)44(33)
7/1637(27)47(35)57(42)73(54)80(59)104(77)50(37)71(53)
1/257(42)73(54)87(64)113(83)123(91)159(117)76(56)108(80)
9/1681(60)104(77)125(92)163(120)176(130)229(169)111(82)156(115)
5/8112(83)145(107)174(128)224(165)244(180)316(233)153(113)215(159)
3/4198(146)256(189)306(226)397(293)432(319)560(413)271(200)383(282)
7/8193(142)248(183)495(365)641(473)698(515)904(667)437(323)617(455)
1
289(213)373(275)742(547)960(708)1048(773)
1356
(1000)
654(483)924(681)
NOTE:T orquevaluesshownwith*areinchpounds.
NOTICE:Valuesshownonthesechartsareminimumhardwaretighteningtorquesunlessotherwisestated.
METRIC’NON-FLANGED’HARDWAREANDLOCKNUTS{MINIMUMHARDWARETIGHTENINGTORQUES}
INNEWTON-METERS(FOOT-POUNDS)FORNORMALASSEMBLYAPPLICATIONS
CLASS5.8CLASS8.8CLASS10.9LOCK-
NUTS
Nominal
Size
UnplatedPlated
w/ZnCr
UnplatedPlated
w/ZnCr
UnplatedPlated
w/ZnCr
Cl.8
w/Cl8.8Bolt
M4
1.7(15)*2.2(19)*2.6(23)*3.4(30)*3.7(33)*4.8(42)*2.3(20)*
M6
5.8(51)*7.6(67)*8.9(79)*12(102)*13(115)*17(150)*7.8(69)*
M8
14(124)*18(159)*22(195)*28(21)31(23)40(30)19(169)*
M10
28(21)36(27)43(32)56(41)61(45)79(58)38(28)
M12
49(36)63(46)75(55)97(72)107(79)138(102)66(49)
M16
121(89)158(117)186(137)240(177)266(196)344(254)164(121)
M20
237(175)307(226)375(277)485(358)519(383)671(495)330(243)
M24
411(303)531(392)648(478)839(619)897(662)1160(855)572(422)
NOTE:T orquevaluesshownwith*areinchpounds.
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