Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 64
d thread is one thatwill cause a threaded piece to advanceinto a tapped hole when the piece isturned counter-clockwise. (See Fig. 43.) 6. If a threaded piece is held hori-zontally with the axis at right angles to the body, the threads seen will incline away from the bodyfrom left to right for a… … ■*-ROOT DI/\M.—I diam of screwFig. 42. 62 RIGHT HAINID IN5IDL \ND OUTSIDE SCREW THREADSSirsl3L_C V. DOUBL_E V. Sir-4Gl_E: 5Q. DOUBLE SQ.
Mechanical drawing
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