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 25
NINGS FOR MACHINERY 26. Kinds of Fastenings.—Practical requirements of manufacture anduse necessitate the use of separate pieces in the construction of machinery.The common fastenings are screws, bolts, rivets, pins, keys, hooks,slides, etc. 27. Screw Threads.—In addition to their use as… … . -Roof d/omefer Outride diameter Depth of thread Fig. 27. Screw Thread. The usual forms of screw threads are given in Fig. 28. The formshown at I is the United States Standard, also called Sellers, or FranklinInstitute. The Vs are flattened which makes the thread stronger thanif left sharp as in…
Machinery
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