RT60 Rough Terrain Crane 09 - 5
9.3 TORQUE RATINGS
Table 09 – 5 TORQUE RATING FOR DRY - UNCOATED FASTENERS
TORQUE VALUES TO BE WITHIN ± 5%
ALL FIGURES IN N·M
This table does not apply to hydraulic connections.
NORMAL
DIAMETER
(MM)
GRADE 5.6 GRADE 8.8 GRADE 10.9 GRADE 12.9
6 3.3 7 9.9 11.8
8 8.5 18 25.4 30.4
10 16.5 35 49.4 59.2
12 28.7 61 86 103
16 70 149 210 252
20 136.3 290 409 490
24 235 500 705 845
30 472 1004 1416 1697
36 822 1749 2466 2956
42 1319 2806 3957 4742
48 1991 4236 5973 7159
56 3192 6791 9575 11477
64 4769 10147 14307 17148
72 6904 14689 20712 24824
NOTE:
(1) The above table is suitable for coarse-threaded bolts;
(2) The torque value is within ± 5%;
(3) The friction factor is 70% of the yield point value;
(4) The above values are suitable for the fasteners lubricated. For the fasteners not
lubricated, the torque value is 133% of the corresponding one shown in the
above table.
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