A course in mechanical drawing for evening schools and self-instruction (1896)
Rouillion, Louis · Boston, New York, The Prang educational company · leaf 53
A hexagonal nut may be drawn with close approx-imation to accuracy by the following method, whichdispenses with the drawing of the hexagon: Firstdraw the centre line of the nut, and then the top andbottom lines equal to the diameter of the bolt. Drawthe front face slightly narrower than this… … STANDARD BOLTS --° MUTS.
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
