The difference between screws and bolts

The purpose of screws and bolts is different. Screws are generally used to connect the fixed parts, most of which are used for fastening and easy installation and disassembly. There is no bolt with high strength in strength. The strength of the bolt is stronger than that of the bolt, so it is usually used as a force-receiving part, that is to say, in addition to the general fastening effect, the bolt can usually withstand greater forces. A reasonable design should allow the bolt to withstand tension or pressure rather than shear. In most cases, the screws are mostly used for tightening to the threaded holes of the parts and are rarely used for coupling nuts. The use of bolts is just the opposite, and they are usually tightened with nuts and tightened tightly with the threaded holes of the part. Of course, this is not absolute. Unconventional situations are not necessarily unreasonable, but they must be flexibly applied.