80
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / 7012
Important data
TORQUE VALUES CHART
Bolt
Diameter
Grade 2
Grade 5
Grade 8
1/4”
50 In. Lbs.
56 In. Lbs. 76 In. Lbs.
87 In. Lbs.
9 Ft. Lbs.
10 Ft. Lbs.
5/16”
8 Ft. Lbs.
9 Ft. Lbs.
13 Ft. Lbs.
14 Ft. Lbs.
18 Ft. Lbs.
20 Ft. Lbs.
3/8”
15 Ft. Lbs.
17 Ft. Lbs. 23 Ft. Lbs.
26 Ft. Lbs.
33 Ft. Lbs.
37 Ft. Lbs.
7/16”
25 Ft. Lbs.
27 Ft. Lbs. 37 Ft. Lbs.
41 Ft. Lbs.
52 Ft. Lbs.
58 Ft. Lbs.
1/2”
35 Ft. Lbs.
40 Ft. Lbs. 57 Ft. Lbs.
64 Ft. Lbs.
80 Ft. Lbs.
90 Ft. Lbs.
9/16”
50 Ft. Lbs.
60 Ft. Lbs. 80 Ft. Lbs.
90 Ft. Lbs. 115 Ft. Lbs. 130 Ft. Lbs.
5/8”
70 Ft. Lbs.
80 Ft. Lbs. 110 Ft. Lbs. 125 Ft. Lbs. 160 Ft. Lbs. 180 Ft. Lbs.
3/4”
130 Ft. Lbs. 145 Ft. Lbs. 200 Ft. Lbs. 220 Ft. Lbs. 280 Ft. Lbs. 315 Ft. Lbs.
7/8”
125 Ft. Lbs. 140 Ft. Lbs. 320 Ft. Lbs. 350 Ft. Lbs. 450 Ft. Lbs. 500 Ft. Lbs.
1”
190 Ft. Lbs. 205 Ft. Lbs. 480 Ft. Lbs. 530 Ft. Lbs. 675 Ft. Lbs. 750 Ft. Lbs.
1.1/8”
265 Ft. Lbs. 300 Ft. Lbs. 600 Ft. Lbs. 670 Ft. Lbs. 960 Ft. Lbs. 1075 Ft. Lbs.
1.1/4”
375 Ft. Lbs. 415 Ft. Lbs. 840 Ft. Lbs. 930 Ft. Lbs. 1360 Ft. Lbs. 1500 Ft. Lbs.
1.3/8”
490 Ft. Lbs. 560 Ft. Lbs. 1100 Ft. Lbs. 1250 Ft. Lbs. 1780 Ft. Lbs. 2030 Ft. Lbs.
1.1/2”
650 Ft. Lbs. 730 Ft. Lbs. 1450 Ft. Lbs. 1650 Ft. Lbs. 2307 Ft. Lbs. 2670 Ft. Lbs.
Coarse Fine
Coarse Fine
Coarse Fine
GRADE 2
No Marks.
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GRADE 3
3 Marks.
GRADE 8
6 Marks.
Torque table
For metric conversion:
• Multiply inch-pounds by .113 to convert to newton-meters (Nm).
• Multiply foot-pounds by 1.356 to convert to newton-meters (Nm).
NOTE
The table below gives correct torque values for various bolts. Tighten all bolts to the
torques specified in chart unless otherwise noted. Check the tightness of bolts periodically,
using this bolt torque chart as a guide. Replace hardware with the same strength (Grade/
Class) bolt.
