ASME B 18.2.1 - 2012
Display drawing:
Screw Thread | 1/4 | ||
Thread Size | 1/4 | ||
D | 0.25 | ||
PP | UNC | 20 | |
PP | UNF | 28 | |
PP | UN | None | |
Ds | Max | 0.26 | |
Ds | Min | 0.237 | |
S | Max | 0.438 | |
S | Min | 0.425 | |
E | Max | 0.505 | |
E | Min | 0.484 | |
K | Max | 0.188 | |
K | Min | 0.15 | |
R | Max | 0.030 | |
R | Min | 0.010 | |
B | L≤6 | 0.7500 | |
B | L>6 | 1.0000 |