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Link,
You will have to determine what kind of bolt's they are?
Example a 3/8 24 grade 5 (fine thread) 28-31 fp.
3/8 16 grade 5 (coarse) 25-28
Torque values are the same for grade5+grade8 up to7/16.
Bolt identification grade 5 will have 3 lines on it's head, grade 8 will have 6.
Hope this helps?
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