STANDARD BOLT HOW TO DETERMINE BOLT STRENGTH
| Hexagon Head Bolt | Stud Bolt | Weld Bolt | Class | ||
|---|---|---|---|---|---|
| Normal Recess Bolt | Deep Recess Bolt | ||||
 |
 No Mark |
 No Mark |
|
 |
4T |
 |
 |
- | - | 5T | |
 |
 w/ Washer |
 w/ Washer |
 |
- | 6T |
 |
 |
- | - | 7T | |
 |
 |
 |
- | 8T | |
 |
 |
- | - | 9T | |
 |
 |
- | - | 10T | |
 |
 |
- | - | 11T | |