Thanks for your prompt replies. I got completely the point of saiftynet. But i have one part of my original question left. As mentioned by torquil, the threads will be pulling the screw head in. I want to know how that force is generated. Is it some elastic force? In that case, how is it inward...
Hello,
I would be pleased if someone could explain me how a partially threaded screw (lag screw) exerts compressive force across a fracture for instance. I want to know how this is different from a fully threaded screw, i can be very happy if someone could put all the forces in both systems...