Scully blue book: catalogue of iron, steel, machinery, heavy hardware, tools and supplies, with valuable and accurate reference tables (1910)
Scully Steel & Iron Co. · Scully Steel & Iron Co. · leaf 87
is ly times diameter of bolt, add 25% to the list.Where the thickness is ly times diameter, add 50% to the list. Wherethe thickness is 1^ times diameter, add 75% to the list. Where thick-ness is double the diameter, add 100% to the list. SEMI-FINISHED NUTS. Semi-Finished Nuts, case-hardened, add…