It is not officially available for exocad. I got library 2018v2 and it is not there also. So I got custom made library for that and it is far from perfect, but I got the job done. I will try to modify it by myself in order to have the option to choose the angulation degree (currently it is fixed to I dont even know to what degree - I got no time to investigate) and also modify the screw channel a bit.