Screw Thread Cutting (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from Screw Thread Cutting

The lead of a screw thread is the distance the screw will move forward in a nut if turned around one full revolution. It is clear that for a single-threaded screw the pitch and the lead are equal, as the screw would then move forward the distance from one thread to the next if turned around once. In a double-threaded screw, however, the screw will move forward two threads, or twice the pitch, so that in a double-threaded screw the lead equals twice the pitch. In a triple threaded screw the lead equals three times the pitch, and so forth.

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