Case 2050M Tier2 - General Specification

INTRODUCTION
Generalspecication
2050M
Bolttorqueinformation
DecimalHardware
1.Replacethefastenerswiththesameorhighergrade.Ifyouuseahighergradefastener,tightentothestrength
oftheoriginal.
2.Cleanthethreadsofthefastenersandstartthethreadengagement.Thiswillpreventfailureofthefastenerswhen
youtightenthem.
3.Tightentheplasticinsertorthecrimpedsteel-typelocknutstoapproximately50%ofthedrytorque,appliedtothe
nut,nottothebolthead.Tightenthetoothedortheserrated-typelocknutstothefulltorquevalue.
4.TheL9(Alloy)fastenerstorquevaluesareforabolt,nut,andtwowashers.
WhenyouusetheL9(Alloy)fasteners,donotusethevaluesinthistablefortappedholes.
Grade
1or2
5
5.15.288.2
L9(Alloy)
SAEmarkings
forboltsand
capscrews
2
5
8
L9(Alloy)
SAEmarkings
forhexnuts
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
1/4
UNF
7.55.55.7
4.210.888.56.316.31212.2913.61014.911
1/4
UNC
8.56.36.44.713.6109.87.2191413.61016.31217.613
5/16
UNF
1511118231718133324241826192821
5/16
UNC
1612129261919143727272027203123
3/8
UNF
27202015413031236145473541304533
3/8
UNC
31232317473534256850473547355238
7/16
UNF
433233246850473595706850
7555
8160
7/16
UNC
49363727
7555
544010880816081608865
1/2
UNF
68504735102
757555
149110108801158512995
1/2
UNC
7555
54401158588651631201229012995142105
9/16
UNF
9570
7555
14911010880203150149110163120190140
9/16
UNC
10880816016312012290231170176130183135203150
4803732115/02/2017
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