American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 66
.09472 56 .03093 .02706 18 .09622 .08419 64 .02706 .02368 20 .08660 .07578 80 .02165 .01894 22 .07872 .06889 100 .01732 .01516 24 .07216 .06314 MEASURING METRIC THREADS 37 * MEASURING METRIC SCREW THREADDIAMETERS The tables and formulas given herewith in connection with Fig. 15should be of value to… … Formulas: For V Threads D = (M - 3 W) + 1.732 P.M = (D - 1.732 P.) +3W. For Threads with Flat Topand Bottom equal to 5 ofthe Pitch D = (M -3W) +1.SISS P. M = (.D - i.siSS P.) 4- 3 W. Fig. 15. — Measuring Metric Threads Constants for Use in Measuring Metric Screw Threads BY the 3-W1RE System…
Machine-shop practice
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