Square Head Bolts
ASME B 18.2.1 - 2010
Display drawing:
| Screw Thread | 1-1/2 | ||
| D | 1.5 | ||
| PP | UNC | 6 | |
| Ds | Max | 1.531 | |
| Ds | Min | 1.47 | |
| S | Basic | 2-1/4 | |
| S | Max | 2.250 | |
| S | Min | 2.175 | |
| E | Max | 3.182 | |
| E | Min | 2.986 | |
| K | Basic | 1 | |
| K | Max | 1.036 | |
| K | Min | 0.964 | |
| R | Max | 0.09 | |
| R | Min | 0.03 | |
| B | L≤6 | 3.250 | |
| B | L＞6 | 3.500 | |