Blessing, George F. (George Frederick), 1875-1921, Darling, Lewis A. (Lewis Andrew) · New York, J. Wiley & sons; [etc., etc.] · leaf 149
Threads per inch 20 18 16 14 13 12 II 10 9 8 7 6 S 4i 4 3l The title of this drawing is BOLTS, NUTS, AND SCREWS. The next step is to make substitutions in the formulas andwork out the dimensions of the bolts, nuts, and screws. Thesecomputations must be neatly inked. on standard computationpaper,… … -i^--^ r«—r—=ri ft ^1 CAP SCREW HEAD FILLISTER HEAD
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
