how to design standard and non-standard trapezoidal lead screw nut,trapezoidal lead screw threads,acme trapezoidal lead screws,trapezoidal lead screw nut?

trapezoidal lead screw nut,trapezoidal lead screw threads,acme trapezoidal lead screws,trapezoidal lead screw nut standard threads sizes tr12x3, tr16x4, tr16x5, tr18x4, tr20x4, tr20x5, tr24x5, tr25x5, tr25x8, tr26x5, tr30x6, tr32x6, tr36x10, tr38x6, tr40x7, tr40x8, tr45x8, tr45x12, tr50x8, tr50x10, tr50x16, tr55x9, tr55x10, tr58x12, tr60x9, tr63x16, tr64x8, tr64x10, tr65x12, tr70x10, tr75x12, tr80x10, tr80x12, tr85x20, tr85x16, tr90x14, tr90x16, tr100x10, tr100x16, tr100x18, tr100x24, tr105x16, tr120x16, tr120x20, tr130x16, tr150x20, tr160x23, tr180x25. For examples Tr180x25: Tr means trapezoidal lead screw threads, also customized square threads lead screw. 180 means outer screw diameter 180mm. 25 means screw pitch 25mm. Single start thread, dual start threads or multi-start threads are available. Except above standards screw threads sizes, we can make them following customers design drawings.