ASME B 18.5 - 2012 (2017)
Display drawing:
Screw Thread | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 | 1/4 | ||
Thread Size | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 | 1/4 | ||
D | 0.3125 | 0.375 | 0.4375 | 0.5 | 0.625 | 0.75 | 0.875 | 1 | 1.125 | 1.25 | 1.375 | 1.5 | 0.25 | ||
P | 24 | 24 | 20 | 20 | 18 | 16 | 14 | 12 | 12 | 12 | 12 | 12 | 28 | ||
Ds | Max | 0.324 | 0.388 | 0.452 | 0.515 | 0.642 | 0.768 | 0.895 | 1.022 | 1.149 | 1.277 | 1.404 | 1.531 | 0.26 | |
Ds | Min | 0.298 | 0.36 | 0.421 | 0.483 | 0.605 | 0.729 | 0.852 | 0.976 | 1.098 | 1.223 | 1.345 | 1.47 | 0.237 | |
Dk | Max | 0.618 | 0.74 | 0.803 | 0.935 | 1.169 | 1.402 | 1.637 | 1.869 | 2.104 | 2.337 | 2.571 | 2.804 | 0.493 | |
Dk | Min | 0.598 | 0.715 | 0.778 | 0.905 | 1.132 | 1.357 | 1.584 | 1.81 | 2.037 | 2.262 | 2.489 | 2.715 | 0.477 | |
K | Max | 0.189 | 0.225 | 0.226 | 0.269 | 0.336 | 0.403 | 0.47 | 0.537 | 0.604 | 0.671 | 0.738 | 0.805 | 0.15 | |
K | Min | 0.164 | 0.196 | 0.196 | 0.233 | 0.292 | 0.349 | 0.408 | 0.466 | 0.525 | 0.582 | 0.641 | 0.698 | 0.131 | |
N | Max | 0.084 | 0.094 | 0.094 | 0.106 | 0.133 | 0.149 | 0.167 | 0.188 | 0.196 | 0.211 | 0.226 | 0.258 | 0.075 | |
N | Min | 0.072 | 0.081 | 0.081 | 0.091 | 0.116 | 0.131 | 0.147 | 0.166 | 0.178 | 0.193 | 0.208 | 0.24 | 0.064 | |
T | Max | 0.086 | 0.103 | 0.103 | 0.103 | 0.137 | 0.171 | 0.206 | 0.24 | 0.257 | 0.291 | 0.326 | 0.36 | 0.068 | |
T | Min | 0.057 | 0.068 | 0.068 | 0.068 | 0.091 | 0.115 | 0.138 | 0.162 | 0.173 | 0.197 | 0.22 | 0.244 | 0.045 |