Square Head Bolts
ASME B 18.2.1 - 2010
Display drawing:
| Screw Thread | 1-3/8 | ||
| D | 1.375 | ||
| PP | UNC | 6 | |
| Ds | Max | 1.404 | |
| Ds | Min | 1.345 | |
| S | Basic | 2-1/16 | |
| S | Max | 2.062 | |
| S | Min | 1.944 | |
| E | Max | 2.917 | |
| E | Min | 2.738 | |
| K | Basic | 29/32 | |
| K | Max | 0.940 | |
| K | Min | 0.872 | |
| R | Max | 0.09 | |
| R | Min | 0.03 | |
| B | L≤6 | 3.000 | |
| B | L＞6 | 3.250 | |