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TORQUE DATA FOR STANDARD NUTS, BOLTS, AND CAP SCREWS.
Tighten all bolts to torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt
chart as guide. Replace hardware with same grade bolt.
NOTE: Unless otherwise specified, high-strength Grade 5 hex bolts are used throughout assembly of equipment.
Torque Specifications
Torque figures indicated are valid for non-greased
or non-oiled threads and heads unless otherwise
specfied. Therefore, do not grease or oil bolts
or capscrews unless otherwise specified in this
manual. When using locking
elements, increase torque values
by 5%.
* GRADE or CLASS value for bolts and capscrews
are identified by their head markings.
OPERATION
REPLACEMENT PARTS
BOLT TORQUE
Bolt Torque for Standard bolts *
GRADE 2
"A"
lb-ft
(N.m)
1/4"
6
(8)
5/16"
10
(13)
3/8"
20
(27)
7/16"
30
(40)
1/2"
45
(60)
9/16"
70
(95)
5/8"
95
(130)
3/4"
165
(225)
7/8"
170
(230)
1"
225
(300)
Bolt Torque for Metric bolts *
CLASS 8.8
"A"
lb-ft
(N.m)
6
9
(13)
7
15
(21)
8
23
(31)
10
45
(61)
12
78
(106)
14
125
(169)
16
194
(263)
18
268
(363)
20
378
(513)
22
516
(699)
24
654
(886)
GRADE-2 GRADE-5
CLASS 8.8 CLASS 9.8 CLASS 10.9
8.8
9.8
Page # 13
GRADE 5
lb-ft
(N.m)
lb-ft
9
(12)
12
18
(25)
25
30
(40)
45
50
(70)
80
75
(100)
115
115
(155)
165
150
(200)
225
290
(390)
400
420
(570)
650
630
(850)
970
CLASS 9.8
CLASS 10.9
lb-ft
(N.m)
lb-ft
10
(14)
13
18
(24)
21
25
(34)
31
50
(68)
61
88
(118)
106
140
(189)
170
216
(293)
263
--
--
364
--
--
515
--
--
702
--
--
890
GRADE-8
10.9
READ complete manual CAREFULLY
BEFORE attempting operation.
GRADE 8
(N.m)
(16)
(35)
(60)
(110)
(155)
(220)
(300)
(540)
(880)
(1310)
(N.m)
(17)
(29)
(42)
(83)
(144)
(230)
(357)
(493)
(689)
(952)
(1206)
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