Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 68
one. Fig. 43 will make this clear. 4. Conventional threads are not to be used on a section show-ing two pieces screwed together and both cross-hatched, as A, Fig. 44, or on a section showing an isolated outside thread, as B,Fig. 44. Isolated inside threads, as C, Fig. 44, may be drawnconventionally… … Fig. 47. SCREW THREAD PROPORTIONS AND TABLES. The standard forms and proportions of screw threads in practical usein the United States will be found on Plates N and O. BOLTS. 1. The standard proportions for Bolt Threads,Heads and Nuts shown on Plate P and tabulated on Plate Q,were adopted by the…
Mechanical drawing
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