This section is from the book "Scientific American Reference Book. A Manual for the Office, Household and Shop", by Albert A. Hopkins, A. Russell Bond. Also available from Amazon: Scientific American Reference Book.
Roebling. | Brown & Sharpe. | Birmingham or Stubs. | English Legal Standard. | Old English, or London. | |
000000 | 0.46 | 0.464 | |||
00000 | 0.43 | 0.432 | |||
0000 | 0.393 | 0.46 | 0.454 | 0.4 | 0.454 |
000 | 0.362 | 0.40964 | 0.425 | 0.372 | 0.425 |
00 | 0.331 | 0.3648 | 0.380 | 0.348 | 0.38 |
0 | 0.307 | 0.32495 | 0.340 | 0.324 | 0.34 |
1 | 0.283 | 0.2893 | 0.3 | 0.3 | 0.3 |
2 | 0.263 | 0.25763 | 0.284 | 0.276 | 0.284 |
3 | 0.244 | 0.22942 | 0.259 | 0.252 | 0.259 |
4 | 0.225 | 0.20431 | 0.238 | 0.232 | 0.238 |
5 | 0.207 | 0.18194 | 0.22 | 0.212 | 0.22 |
6 | 0.192 | 0.16202 | 0.203 | 0.192 | 0.203 |
7 | 0.177 | 0.14428 | 0.18 | 0.176 | 0.18 |
8 | 0.162 | 0.12849 | 0.165 | 0.16 | 0.165 |
9 | 0.148 | 0.11443 | 0.148 | 0.144 | .148 |
10 | 0.135 | 0.10189 | 0.134 | 0.128 | 0.134 |
11 | 0.12 | 0.09074 | 0.12 | 0.116 | 0.12 |
12 | 0.105 | 0.08081 | 0.109 | 0.104 | 0.109 |
13 | 0.092 | 0.07196 | 0.095 | 0.092 | 0.095 |
14 | 0.08 | 0.06408 | 0.083 | 0.08 | 0.083 |
15 | 0.072 | 0.05706 | 0.072 | 0.072 | 0.072 |
16 | 0.063 | 0.05082 | 0.065 | 0.064 | 0.065 |
17 | 0.054 | 0.04525 | 0.058 | 0.056 | 0.058 |
18 | 0.047 | 0.0403 | 0.049 | 0.048 | 0.049 |
19 | 0.041 | 0.03589 | 0.042 | 0.04 | 0.04 |
20 | 0.035 | 0.03196 | 0.035 | 0.036 | 0.035 |
21 | 0.032 | 0.02846 | 0.032 | 0.032 | 0.0315 |
22 | 0.028 | 0.02534 | 0.028 | 0.028 | 0.0295 |
23 | 0.025 | 0.02257 | 0.025 | 0.024 | 0.027 |
24 | 0.023 | 0.0201 | 0.022 | 0.022 | 0.025 |
25 | 0.02 | 0.0179 | 0.02 | 0.02 | 0.023 |
26 | 0.018 | 0.01594 | 0.018 | 0.018 | 0.0205 |
27 | 0.017 | 0.01419 | 0.016 | 0.0164 | 0.01875 |
28 | 0.016 | 0.01264 | 0.014 | 0.0148 | 0.0165 |
29 | 0.015 | 0.01125 | 0.013 | 0.0136 | 0.0155 |
30 | 0.014 | 0.01002 | 0.012 | 0.0124 | 0.01375 |
31 | 0.0135 | 0.00893 | 0.010 | 0.0116 | 0.01225 |
32 | 0.013 | 0.00795 | 0.009 | 0.0108 | 0.01125 |
33 | 0.011 | 0.00708 | 0.008 | 0.01 | 0.01025 |
34 | 0.01 | 0.0063 | | 0.007 | 0.0092 | 0.0095 |
35 | 0.0095 | 0.00561 | 0.005 | 0.0084 | 0.009 |
36 | 0.009 | 0.005 | 0.004 | 0.0076 | 0.0075 |
 
Continue to: