The following images portrait a particular processing of ours, that is a thread fourfold start square thread with a Ø800 P520 on screw and nut.
A screw is commonly a cylindrical body on which surface a helical thread is machined; this particular thread is called “nut screw”, because it allows the threaded coupling of a screw and its nut, which precisely welcomes a screw properly inserted into its thread.
