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ToRque dATA foR sTANdARd NuTs, bolTs, ANd cAPscReWs.
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.
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)
Torque figures indicated are valid for non-greased or non-oiled threads and heads unless otherwise specified. 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.
A
1. Tighten castle or slotted hex nut to initial torque indicated on chart while turning hub in both
directions to insure all bearing surfaces are in contact.
2. Back nut off and repeat step #1.
3. Back nut off, do not allow hub to turn.
4. Tighten nut to final torque indicated on chart.
5. Install cotter pin, if needed loosen or tighten nut to the next closest locking slot.
6. Check hub for end play.
7. If end play can be felt, start over and readjust bearings. If end play is felt again, try readjusting
with a different castle or slotted hex nut.
8. The bearing are set correctly when no end play can be felt after adjustment.
Torque specifications
GRAde 5
GRAde 8
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
GRADE-2
GRADE-5
Wheel bearing Adjustment
hub
Initial Toque
8 bolt
75 ft/ lbs
10 bolt
75 ft/lbs
bolT ToRque
clAss 8.8
"A"
lb-ft
(N.m)
6
9
7
15
(16)
8
23
(35)
10
45
(60)
12
78
(110)
14
125
(155)
16
194
(220)
18
268
(300)
20
378
(540)
22
516
(880)
24
654
(1310)
GRADE-8
final Torque
35 ft/lbs
50 ft/lbs
Page 9
bolt Torque for Metric bolts *
clAss 9.8
(N.m)
lb-ft
(N.m)
(13)
10
(14)
(21)
18
(24)
(31)
25
(34)
(61)
50
(68)
(106)
88
(118)
(169)
140
(189)
(263)
216
(293)
(363)
--
--
(513)
--
--
(699)
--
--
(886)
--
--
CLASS 8.8
CLASS 9.8
8.8
9.8
clAss 10.9
lb-ft
(N.m)
13
(17)
21
(29)
31
(42)
61
(83)
106
(144)
170
(230)
263
(357)
364
(493)
515
(689)
702
(952)
890
(1206)
CLASS 10.9
10.9
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