SUNWARD SWE210F - Tightening Torque Specification; Tightening Torque Table for Bolt, Nut

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4.3 Tightening torque specification
Note
 If nuts, bolts, or other parts are not tightened to the specified torque, it will cause
looseness or damage to the tightened parts, and this will cause failure of the machine
or problems with operation.
4.3.1 Tightening torque table for bolt, nut
Thre
ad
diam
eter
(mm
)
Acro
ss
flats
(mm
)
Tightening torque
Target value Service limit
N•m kgf•m lbft N•m kgf•m lbft
6 10 13.2 1.35 9.8 11.8 - 14.7 1.2 - 1.5 8.7 - 10.8
8 13 31 3.2 23.1 27 - 34 2.8 - 3.5 20.3 - 25.3
10 17 66 6.7 48.5 59 - 74 6.0 - 7.5 43.4 - 54.2
12 19 11 11.5 83.2 98 - 123 10.0 - 12.5 72.3 - 90.4
14 22 177 18 130.2 157 - 196 16.0 - 20.0 115.7 - 144.7
16 24 279 28.5 206.1 245 - 309 25.0 - 31.5 180.8 - 227.8
18 27 382 39 282.1 343 - 425 35.0 - 43.5 253.2 - 314.6
20 30 549 56 405.0 490 - 608 50.0 - 62.0 361.7 - 448.4
22 32 745 76 549.7 662 - 829 67.5 - 84.5 488.2 - 611.2
24 36 927 94.5 683.5 824 - 1030 84.0 - 105.0 607.6 - 759.5
27 41 1320 135.0 976.5 1180 - 1470 120.0 - 150.0 868.0 - 1085.0
30 46 1720 175.0 1265.8 1520 - 1910 155.0 - 195.0 1121.1 - 1410.4
33 50 2210 225.0 1627.4 1960 - 2450 200.0 - 250.0 1446.6 - 1808.3
36 55 2750 280.0 2025.2 2450 - 3040 250.0 - 310.0 1808.3 - 2242.2
39 60 3280 335.0 2423.1 2890 - 3630 295.0 - 370.0 2133.7 - 2676.2