How to maintain bolts?

Shanghai Nonferrous Net gives you a detailed introduction to the difference between stud, screw, bolt and screw, which is a representative name in standard parts. Studs and screws are just one kind of bolts. In the industry, the word "toothed bar" means that studs and screws are one kind, so in your example, only the toothed bar of bolts is compared with screws. Bolt is a kind of fastener, which consists of a head and a screw with external thread. It needs to cooperate with a nut to connect the two parts with a through hole. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is detachable. In the industry, standard bolts are generally divided into two types, one is external hexagonal bolt, which consists of threaded column and hexagonal head. The standard name in the industry is stud bolt, which consists of studs with threads at both ends, some with polished rods in the middle and some with nuts in the middle. Tooth strips have different names because of their different positions. Generally, the parts connecting the legs are under the finger frame. Furniture with waist is the main connecting part below the waist. Other places are generally renamed dental tape. Tooth strips are composed of threaded columns, and the whole body has only threads. In the industry, the standard name is tooth strip without guide angle. The last one is that everyone often says that screws are fasteners, not everyday spoken English. That is to say, no matter screws, screws or dental strips, they can all be called screws. It's not called a screw here, it's called a screw. Screws are characterized by various structural shapes of threaded fasteners, such as crosshead screws, hexagon socket screws, flat head fastening, countersunk crosshead screws, hexagon socket screws and so on! Among the standard parts, the professional names are hexagon socket head screws countersunk head hexagon socket head screws flat head sets crosshead drill tail screws self-tapping screws and so on! Ha ha! Finally, talk about their differences in the simplest way. Teeth have no heads, bolts have one or two heads, and screws have many heads! For more bolt information, please visit Shanghai Nonferrous Metal Network ().