What is the difference between the three concepts of copper bolt, copper screw and copper screw?

Time:2022-11-03

　　In life, copper bolts, copper screws, copper screws and so on are often mentioned. What is the difference between them? In fact, the standard saying is that there are no copper screws and copper nuts. Copper screws are commonly known, with external threads can be called "screws". The shape of the copper nut is usually hexagonal, and the inner hole is internal thread. It 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 part has external thread. Copper screw is small, the head has a flat head, cross head, the rod part with external thread. Copper stud should actually be called "double stud", both ends have external threads, the middle is generally a smooth rod. The long end of the copper thread is used to connect with the deep hole, and the short end is connected with the copper nut.

　　There are twelve types of standard fasteners, which are selected according to their use occasions and functions.

　　1. Copper bolts

　　Copper bolts are widely used in machinery for detachable joints and are usually used with nuts (usually plus a washer or two).

　　2. Copper screws

　　Copper screws are usually used alone (sometimes with washers), generally to tighten or tighten the role, should be screwed into the internal thread of the body.

　　2. Copper stud

　　Copper stud is mainly used to connect one of the connected parts thickness is large, need to use compact structure or due to frequent disassembly and not suitable for bolted connection place. The stud is generally threaded at both ends (single head stud is a single end with thread), usually one end of the thread is firmly screwed into the body of the component, the other end matches with the nut, plays the role of connection and fastening, but to a large extent also has the role of spacing.