释义 |
acme screw thread
acme screw thread n (General Engineering) a type of screw thread having inclined flat flanks and a flat top and bottom: used in machine tools acme screw thread
acme screw thread[′ak·mē ′skrü ‚thred] (design engineering) A standard thread having a profile angle of 29° and a flat crest; used on power screws in such devices as automobile jacks, presses, and lead screws on lathes. Also known as acme thread. |