Q. A motor weighing 2000 kg is to be lifted by wrought iron eye bolt, screwed into the frame. Clioose-single bolt out of the following (Solved)
1. M 30 coarse threads
2. M 12 fine threads
3. None as wrought iron is brittle
4. M 12 coarse threads
5. M 30 Fine threads
- a. M 30 coarse threads