Square Head Bolts
ASME B 18.2.1 - 2010
Display drawing:
| Screw Thread | 1-1/4 | ||
| D | 1.25 | ||
| PP | UNC | 7 | |
| Ds | Max | 1.277 | |
| Ds | Min | 1.223 | |
| S | Basic | 1-7/8 | |
| S | Max | 1.875 | |
| S | Min | 1.812 | |
| E | Max | 2.652 | |
| E | Min | 2.489 | |
| K | Basic | 27/32 | |
| K | Max | 0.876 | |
| K | Min | 0.812 | |
| R | Max | 0.09 | |
| R | Min | 0.03 | |
| B | L≤6 | 2.750 | |
| B | L＞6 | 3.000 | |