Fry, Horace Pugh. [from old catalog] · Philadelphia [The John C. Winston co.] · leaf 57
\Q0 .3 707 1/3 .3850 .2780 2 .2fcOO . 1853 3 .1 7G7 . / 235 4 .1350 .0927 5 .1 100 .0741 6 .0933 .0GI8 7 .0814 .0529 8 .07Z5 .0463 3 ,0Q>55 .04I3 lO .oeoo .037 1 /?= DEPTH OF THREAD= ^D- 2XN0.THDS.PER IN.I 4-.0I NO.OF THDSPERIN.3707 .OZ /^=WIDTH AT P0INT=-^^^^ ^^,3 ^^^ ,^ rO DRAW THE ACME… … Platx p. 55 PROPORTIONS FOR U.S. STANDARD SCREIW THREADS AND NUTS HOOPES AND TOWNSENDS STANDARD SIZES FOR BOLT HEADS DIAM OF BOLT D BOLT THREADS NUTS HEADS 1 THDS. PEP INCH N DIAM. ATROOT AREA ATROOT A THtCK HEX. OR SQ. T HEX. LONG DIAM. C SQ.L.ONS6DJAM. c HEX, SQ.SHORTDIAM. HEX. OR SQ. COUNTERSUNK…
Mechanical drawing
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