Komatsu 930E-4 - SAE Grade 9 Capscrews; T-Bolt Clamps

STANDARDCHARTSANDTABLESSTANDARDTIGHTENINGTORQUES
SAEGrade9Capscrews
Thefollowingspecicationsapplytorequired
assemblytorquesforSAEHexHeadand12-point,
grade9(170,000psiminimumtensile),capscrews.
NOTE:Capscrewthreadsandseatsshallbe
lubricatedwhenassembled.Unlessinstructions
specicallyrecommendotherwise,thesestandard
torquevaluesaretobeusedwithsimplelithiumbase
chassisgrease(multi-purposeEPNLGI)orarust-
preventivegrease(seelist,thispage)onthethreads.
NOTE:Torquesarecalculatedtogiveaclamping
forceofapproximately75%ofproofload.The
maximumtorquetoleranceshallbewithin±10%of
thetorquevalueshown.
Table2-3
StandardTighteningTorqueforSAEHex
Headand12-Point,Grade9Capscrews
Capscrew
Size
1
Torque
N·m
Torque
ft·lb
Torque
kg·m
0.250-2016121.7
0.312-1833243.3
0.375-16
57
425.8
0.438-1495709.7
0.500-1314210514.5
0.562-1220315020.7
0.625-1127820528.3
0.750-1048836049.7
0.875-9780
575
79.4
1.000-81166860119
1.000-121240915126
1.125-716701230170
StandardTighteningTorqueforSAEHex
Headand12-Point,Grade9Capscrews
Capscrew
Size
1
Torque
N·m
Torque
ft·lb
Torque
kg·m
1.125-1218001330184
1.250-723251715237
1.250-1224951840254
1.375-630802270313
1.375-1233552475342
1.500-640402980411
1.500-1243753225445
T-BoltClamps
Table2-4
TighteningTorqueForT-BoltTypeHose
Clamp(SAEJ1508TypeTB)
Thread
Size
Band
Width
Newton
meters
(N·m)
Inch
Pounds
(in·lb)
0.25-28
UNF
19.05mm
(0.75in.)
8.5±0.6
75±5
1.ShankDiameter(in)—Threadsperinch
930E-42-5