Square Head Bolts
ASME B 18.2.1 - 2010
Display drawing:
| Screw Thread | 1/2 | ||
| D | 0.5 | ||
| PP | UNC | 13 | |
| Ds | Max | 0.515 | |
| Ds | Min | 0.482 | |
| S | Basic | 3/4 | |
| S | Max | 0.750 | |
| S | Min | 0.725 | |
| E | Max | 1.061 | |
| E | Min | 0.995 | |
| K | Basic | 21/64 | |
| K | Max | 0.348 | |
| K | Min | 0.308 | |
| R | Max | 0.03 | |
| R | Min | 0.01 | |
| B | L≤6 | 1.250 | |
| B | L＞6 | 1.500 | |