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 335
Diameter Bolt No. of Threads per Inch ...Across Flats Hex. and Square Heads Across Comers Hex. Head .Across Comers Square HeadThickness Hex. and Square Heads i T^^ f t\ i T% f f 1 20 18 16 14 13 12 II 10 9 f M A U f n H li lA T^ T2 34 n M I.v Hf iM i-i U H it II^ ItV Ili iH 4f A i A 1 tV § H 1 f li… … Eefers to all Nutsand Screw Heads,d =Dia. Cotter Pin Hr t—a-*
Machine-shop practice
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
