INTRODUCTION
Torque
MINIMUMHARDWARETIGHTENINGTORQUES
INNEWTON-METERS(FOOTPOUNDS)FORNORMALASSEMBLYAPPLICATIONS
METRICNON-FLANGEDHARDWAREANDLOCKNUTS
CLASS5.8CLASS8.8CLASS10.9
NOMINAL
SIZE
UNPLATED
PLATED
W/ZnCr
UNPLATED
PLATED
W/ZnCr
UNPLATED
PLATED
W/ZnCr
LOCKNUT
CL.8W/CL.8
BOLT
M41.7N·m
(15lbin)*
2.2N·m
(19lbin)*
2.6N·m
(23lbin)*
3.4N·m
(30lbin)*
3.7N·m
(33lbin)*
4.8N·m
(42lbin)*
2.3N·m
(20lbin)*
M65.8N·m
(51lbin)*
7.6N·m
(67lbin)*
8.9N·m
(79lbin)*
12N·m
(106lbin)
*
13N·m
(115lbin)
*
17N·m
(150lbin)
*
7.8N·m
(69lbin)*
M814N·m
(124lbin)
*
18N·m
(159lbin)
*
22N·m
(195lbin)
*
28N·m
(248lbin)
*
31N·m
(274lbin)
*
40N·m
(354lbin)
*
19N·m
(168lbin)
*
M1028N·m
(21lbft)
36N·m
(27lbft)
43N·m
(32lbft)
56N·m
(41lbft)
61N·m
(45lbft)
79N·m
(58lbft)
38N·m
(28lbft)
M1249N·m
(36lbft)
63N·m
(46lbft)
75N·m
(55lbft)
97N·m
(72lbft)
107N·m
(79lbft)
138N·m
(102lbft)
66N·m
(49lbft)
M16121N·m
(89lbft)
158N·m
(117lbft)
186N·m
(137lbft)
240N·m
(177lbft)
266N·m
(196lbft)
344N·m
(254lbft)
164N·m
(121lbft)
M20237N·m
(175lbft)
307N·m
(226lbft)
375N·m
(277lbft)
485N·m
(358lbft)
519N·m
(383lbft)
671N·m
(495lbft)
330N·m
(243lbft)
M24411N·m
(303lbft)
531N·m
(392lbft)
648N·m
(478lbft)
839N·m
(619lbft)
897N·m
(662lbft)
1160N·m
(856lbft)
572N·m
(422lbft)
NOTE:Torquevaluesshownwith*areinchpounds.
IDENTIFICATION
HEXCAPSCREWANDCARRIAGEBOLTS
CLASSES5.6ANDUP
86529681NNN1
(A)MANUFACTURER'S
IDENTIFICATION
(B)PROPERTYCLASS
HEXNUTSANDLOCKNUTS
CLASSES05ANDUP
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