Hex Flange Screws [Table 8]（A394）
ASME B 18.2.1 - 2012
Display drawing:
| Screw Thread | 1/2 | ||
| Thread Size | 1/2 | ||
| D | 0.5 | ||
| PP | UNC | 13 | |
| PP | UNF | 20 | |
| Ds | Max | 0.5 | |
| Ds | Min | 0.493 | |
| S | Max | 0.75 | |
| S | Min | 0.736 | |
| E | Min | 0.825 | |
| Dc | Max | 1.07 | |
| C | Min | 0.08 | |
| K | Max | 0.51 | |
| B | L≤6 | 1.25 | |
| B | L＞6 | 1.5 | |
| R | Max | 0.025 | |
| R | Min | 0.015 | |