Laser cutting machine accessories screw

In our life, we often mention bolts, screws, screws, etc. What is the difference between them? In fact, the standard saying is that there are no screws and nuts. Screw is commonly known, with external thread can be called "screw". The shape of the nut is usually hexagonal, and the inner hole is internal thread, which is used to fit with the bolt and tighten the related parts. Nut is commonly known, the standard should be called "nut". The head of the bolt is generally hexagonal, and the rod has external thread. The screw is small, with flat head and cross head on the head and external thread on the rod. In fact, the stud should be called "double headed stud", with external thread at both ends and smooth rod in the middle. The long end of the thread is used to connect with the deep hole, and the short end is connected with the nut.
Laser cutting machine accessories - screws are usually used alone (sometimes with a washer), generally play a role in tightening or tightening, should be screwed into the internal thread of the body.
Fitting screws are generally made of metal or plastic, which are cylindrical in shape and have concave and convex grooves on the surface. The main function of a screw is to join two objects, or to fix the position of an object. Screws can be removed or re tightened at will without loss of efficiency. Screw is widely used in car body. Generally, it is made of metal or plastic. It is cylindrical and has concave and convex groove on the surface, which is called thread. The main function of a screw is to join two objects, or to fix the position of an object. Screws can be removed or re tightened at will without loss of efficiency.