Laser cutting machine accessories

In life, we often mention bolts, screws, screws and so on. What's the difference between them? In fact, there are no screws and nuts in the standard way. 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 the bolt and tighten the relevant parts. Nut is commonly known as "nut". The head of the bolt is generally hexagonal, and the rod has external thread. The screw is small, the head has flat head, cross head, etc., and the rod has external thread. The actual stud shall be called "double head 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 separately (sometimes with washers), which are generally used for fastening or tightening, and should be screwed into the internal thread o…