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4. SPECIFICATIONS
4.1 OVERALL SPECIFICATIONS
4.2 BOLT SPECIFICATIONS
WARNING
EQUIPMENT FAILURE HAZARD
The torque value for bolts and capscrews are
identified by their head markings. Replacing
higher "Grade" bolts (Grade 8) with lower
"Grade" bolts (Grade 5) will lead to equipment
failure and can result in injury or death. Always
use replacement bolts with the same Grade
markings as the removed bolt.
4.2.1 Bolt Torque Values
Torquefiguresindicatedabovearevalidfornon‑
greased or non-oiled threads and heads unless
otherwisespecified.Therefore,donotgreaseor
oil bolts or capscrews unless otherwise instructed
in this manual. When using locking elements,
increase torque values by 5%.
Bolt
SAE Grade 2
Diameter "A"
1/4"
8
5/16"
13
3/8"
27
7/16"
41
1/2"
61
9/16"
95
5/8"
128
3/4"
225
7/8"
230
1"
345
20
N·m (ft-lbs)
(6)
(10)
(20)
(30)
(45)
(70)
(95)
(165)
(170)
(225)
4.2.2 Grade Markings Chart
No Marking
3 Radial Lines
6 Radial Lines
SAE Grade 5
N·m (ft-lbs)
12
(9)
25
(19)
45
(33)
72
(53)
110
(80)
155
(115)
215
(160)
390
(290)
570
(420)
850
(630)
Grade 2
Low or Medium
Carbon Steel
Grade 5
Medium Carbon
Steel Quenched
and Tempered
Grade 8
Medium Carbon
Alloy Steel,
Quenched and
Tempered
SAE Grade 8
N·m (ft-lbs)
17
(12)
36
(27)
63
(45)
100
(75)
155
(115)
220
(165)
305
(220)
540
(400)
880
(650)
1320
(970)
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