0C-9 Service Data:
Tightening Torque Chart
For other bolts and nuts not listed in the preceding page, refer to this chart:
Bolt Diameter
“a” (mm)
Conventional or “4” marked bolt “7” marked bolt
N⋅mkgf–mlb–ft N⋅m kgf–m lb–ft
4 1.5 0.15 1.0 2 0.2 1.5
5 3 0.3 2.0 5 0.5 3.5
6 6 0.6 4.5 10 1.0 7.0
8 13 1.3 9.5 23 2.3 16.5
10 29 2.9 21.0 50 5.0 36.0
12 45 4.5 32.5 85 8.5 61.5
14 65 6.5 47.0 135 13.5 97.5
16 105 10.5 76.0 210 21.0 152.0
18 160 16.0 115.5 240 24.0 173.5
321
“a”
“a”
“a”
I649G1030001-03
1. Conventional bolt 2. “4” marked bolt 3. “7” marked bolt
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