Hex Bolts [Table 2] (ASTM A307 / A354 / 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 | |
| PP | UN | None | |
| Ds | Max | 0.324 | |
| Ds | Min | 0.298 | |
| S | Max | 0.5 | |
| S | Min | 0.484 | |
| E | Max | 0.577 | |
| E | Min | 0.552 | |
| K | Max | 0.235 | |
| K | Min | 0.195 | |
| R | Max | 0.030 | |
| R | Min | 0.010 | |
| B | L≤6 | 0.8750 | |
| B | L＞6 | 1.1250 | |