Hopkins, Henry, [from old catalog] comp · New York, H. Hopkins & co. · leaf 85
Endorsed by all who have used them. If not forsale by your jobber, address Schencks Adjustable Fire Back Company,94 Market Street, - Chicago, 111. w *^T^^^jf ^a|T … HOPKINS HANDY NOTES AND QUERIES. PROPORTIONS FOR Med States Standard Screw Threads and Its. From HOOPES & TOWNSEND. | Diameter , Threads Diameter Short Long Long of per at root of Thickness Screw. inch. Thread. Diameter. Diamoter. Diameter 1-4 20 .185 1-2 37-64 7-10 1-4 5-16 18 .240 19-32 11-16…
Metal-work · Hardware
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
