Machine drawing; a text and problem book for technical students and draftsmen (1921)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 36
parts of machines. The heads are made in different formsas named in Fig. 49. The sizes of machine screws are often designated bynumbers. The diameters are in decimals of an inch from .060 to .450.Finer pitch threads are used than for U. S. Std. bolts. 46. Set Screws.—These are screws with a small…
Machinery
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