Case 2050M Tier2 - Page 22

INTRODUCTION
Grade2*Grade5,5.1or5.2Grade8or8.2GradeL9(Alloy)
Dry**
Lubricated
**
Dry**
Lubricated
**
Dry**
Lubricated
**
HeadNut
Size
Nm
lb/ft
Nm
lb/ft
Nm
lb/ft
Nm
lb/ft
Nm
lb/ft
Nm
lb/ft
Nm
lb/ft
Nm
lb/ft
5/8
UNF
136100102
75
203150149110285210217160231170251185
5/8
UNC
14911011585231170176130325240244180258190278205
3/4
UNF
237175176130353260271200515380380280359265393290
3/4
UNC
271200190140407300298220570420420310447330481355
7/8
UNF
231170170125583430434320814600610450644475685505
7/8
UNC
244180190140637470475350909670678500705520793585
1
UNF
33925025819086864065148012349109226807465501051
775
1
UNC
3802802852109767207325401383102010317609497001220900
1-1/8
UNF
47535036627010717908005901749129013159701390102515591150
1-1/8
UNC
542400407300120789090967019531440146410801559115017971325
1-1/4
UNF
67850051538015191120113984024681820184413601898140021701600
1-1/4
UNC
74655057042016811240126193027262010204815102170160023731750
1-1/2
UNF
1180870881650264419501980146042853160321423703932290044073250
1-1/2
UNC
1329980990730298322002224164048273560362126704475330049493650
NOTICE:DONOTusethesevaluesifadifferenttorquevalueortighteningprocedureisgivenforaspecicapplica-
tion.Torquevalueslistedareforgeneraluseonly.Checktightnessoffastenersperiodically.Shearboltsaredesigned
tofailunderpredeterminedloads.Alwaysreplacetheshearboltswiththeidenticalgrade.
•
*-Grade2appliesforhexcaps(nothexbolts)upto152mm(6in)long.Grade1appliesforhexcapscrewsover
152mm(6in)long,andforallothertypesofboltsandscrewsofanylength.
•
**-"Lubricated"meanscoatedwithalubricantsuchasengineoil,orfastenerswithphosphateandoilcoatings.
"Dry"meansplainorzincplatedwithoutanylubrication.
Torquespecications-MetricHardware
Grade8.8Bolts,NutsandStudsGrade10.9Bolts,NutsandStuds
DryDry
Size
Nm
lb/inlb/ft
Nm
lb/inlb/ft
M43to431to355to644to49
M55to649to558to971to79
M610to1184to9414to15120to136
M823to26229to27733to37293to329
M1046to51408to46065to7448to54
M1280to9059to66114to12885to94
M14128to14594to106183to205136to153
M16200to220149to161285to320208to235
M20400to450293to330555to620406to460
4803732115/02/2017
14