Bolt Torque - Walinga Grain-Vac 7614F Operator's Manual

7.2

BOLT TORQUE

CHECKING BOLT TORQUE
The tables shown below give correct torque values for various bolts and cap screws. Tighten all bolts
to the torques specified on chart unless otherwise noted. Check tightness of bolts periodically, using
bolt torque chart as a guide. Replace hardware with the same strength bolt.
Table 7 Imperial Torque Specifications
Bolt
Diameter
SAE 2
"A"
(N.m) (lb-ft)
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
Table 8 Metric Torque Specifications
Bolt
Diameter
"A"
(N.m) (lb-ft)
M3 .5
M4 3
M5 6
M6 10
M8 25
M10 50
M12 90
M14 140
M16 225
M20 435
M24 750
M30 1495
M36 2600
Torque figures indicated above are valid for non-greased or non-oiled threads and heads unless
otherwise specified. Therefore, do not grease or oil bolts or cap screws unless otherwise specified in
this manual. When using locking elements, increase torque values by 5%.
* Torque value for bolts and cap screws are identified by their head markings.
Bolt Torque *
SAE 5
(N.m) (lb-ft)
6 12 9
10 25 19
20 45 33
30 72 53
45 110 80
60 155 115
95 215 160
165 390 290
170 570 420
225 850 630
Bolt Torque *
8.8 10.9
(N.m) (lb-ft)
.4 1.8 1.3
2.2 4.5 3.3
4 9
7 15 11
18 35 26
37 70 52
66 125 92
103 200 148
166 310 229
321 610 450
553 1050 774
1103 2100 1550
1917 3675 2710
7614F Grain-Vac Operator's Manual 34-100853-6
SAE 8
(N.m) (lb-ft)
17 12
36 27
63 45
100 75
155 115
220 165
305 220
540 400
880 650
1320 970
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