Plain and Slotted Hex Washer Head Screws [Table 32] (ASTM F837, F468)
ASME B 18.6.3 (T32) - 2013
Display drawing:
| Screw Thread | 1/4 | ||
| Thread Size | 1/4 | ||
| D | 0.25 | ||
| PP | UNC | 20 | |
| S | Max | 0.375 | |
| S | Min | 0.367 | |
| E | Min | 0.409 | |
| H | Max | 0.19 | |
| H | Min | 0.172 | |
| Dc | Max | 0.52 | |
| Dc | Min | 0.48 | |
| C | Max | 0.05 | |
| C | Min | 0.03 | |
| N | Max | 0.075 | |
| N | Min | 0.064 | |
| T | Max | 0.111 | |
| T | Min | 0.083 | |