Hex Flange Screws [Table 8]（A394）
ASME B 18.2.1 - 2012
Display drawing:
| Screw Thread | 5/16 | ||
| Thread Size | 5/16 | ||
| D | 0.3125 | ||
| PP | UNC | 18 | |
| PP | UNF | 24 | |
| Ds | Max | 0.3125 | |
| Ds | Min | 0.3065 | |
| S | Max | 0.5 | |
| S | Min | 0.489 | |
| E | Min | 0.548 | |
| Dc | Max | 0.68 | |
| C | Min | 0.05 | |
| K | Max | 0.32 | |
| B | L≤6 | 0.875 | |
| B | L＞6 | 1.125 | |
| R | Max | 0.025 | |
| R | Min | 0.015 | |