Hex Bolts [Table 2] (ASTM A307 / A354 / A394)
ASME B 18.2.1 - 2012
Display drawing:
| Screw Thread | 3-1/4 | ||
| Thread Size | 3-1/4 | ||
| D | 3.25 | ||
| PP | UNC | 4 | |
| PP | UNF | None | |
| PP | UN | 8 | |
| Ds | Max | 3.335 | |
| Ds | Min | 3.21 | |
| S | Max | 4.875 | |
| S | Min | 4.712 | |
| E | Max | 5.629 | |
| E | Min | 5.372 | |
| K | Max | 2.251 | |
| K | Min | 1.936 | |
| R | Max | 0.190 | |
| R | Min | 0.060 | |
| B | L≤6 | 6.7500 | |
| B | L＞6 | 7.0000 | |