PENTA 30 Series - BOLT TORQUE SPECIFICATIONS; IMPERIAL BOLT TORQUE SPECIFICATIONS; METRIC BOLT TORQUE SPECIFICATIONS

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BOLT TORQUE
The tables below give the correct torque values for various bolts and cap
screws. Tighten all bolts to the torque specified in the chart unless
otherwise noted. Check tightness of bolts periodically, using the bolt torque
chart as a guide. Replace hardware with the same bolt.
Bolt
Diameter
SAE 2
SAE 5
SAE 8
1/4”
5/16”
3/8”
7/16”
1/2"
9/16”
5/8”
3/4”
7/8”
1
”
(NM.) (LBS)
8 6
13 10
27 20
41 30
61 45
95 60
128 95
225 165
230 170
345 225
(NM.) (LBS)
12 9
25 19
45 33
72 53
110 80
155 115
215 160
390 290
570 420
850 630
(NM.) (LBS)
17 12
36 27
63 45
100 75
155 115
220 165
305 220
540 400
880 650
1320 970
IMPERIAL BOLT TORQUE SPECIFICATIONS
METRIC BOLT TORQUE SPECIFICATIONS