AUTOLISP: Building a threaded hole

The program is designed to build a threaded hole in RUSSIAN versions of autocad 2013 ... 2017 and later. The program asks you to enter the value of the external thread diameter, then the internal thread diameter, and then asks you to specify the center of the future thread hole. As a result, a threaded hole is constructed at the specified point in the form of an arc with a thread diameter and a circle with an internal thread diameter..