Diagram of Square Thread Nut and Screw Small 320×124 Medium 640×249 Large 1024×398 Download TIFF Original 2400×932 | (368.6 KB) Description A representation of the square threaded nut and screw. The left image shows the threaded screw with a continuous helix drawn. The nut is cut in half to show how the threads are drawn with respect to the screw. Keywords drafting, Drawing Square Thread Screw and Nut, mechanical drawing, nut, nuts, screw, screw threads, screws, Square Thread Screw and Nut, thread, threads Galleries Mechanical Drawing Source: Anthony, Gardner C. Elements of Mechanical Drawing (Boston, MA: D. C. Heath & Co., 1904)