In life, bolts, screws, screws, etc. are often mentioned. What is the difference between them? Actually, the standard saying is that there are no screws and nuts. Screws are commonly known, and those with external threads can be called “screws”. The shape of the nut is usually hexagonal, and the inner hole is internally threaded, which is used to cooperate with the bolt and tighten the related parts. Nuts are commonly known, and the standard should be called “nuts“.
The bolt head is generally hexagonal, and the shank is externally threaded. The screw is small, the head has flat head, cross head, etc., and the stem has external thread. Actually, the stud should be called “double-headed stud”, with external threads at both ends and polished rod in the middle. The long end of the thread is used to connect with the deep hole, and the short one is connected with the nut. Standard fasteners are divided into twelve categories, and the selection is determined according to the application occasion and function of fasteners.
1. bolts Bolts are widely used in mechanical manufacturing for detachable connection, and they are generally used together with nuts (usually plus one washer or two washers).
2. Screw Screws are usually used alone (sometimes with washers), and generally play a role in fastening or tightening. They should be screwed into the internal threads of the machine body.
3 Stud bolt
Studs bolt are mostly used to connect the parts to be connected. One of them has a large thickness, so it is necessary to use a place with compact structure or it is not suitable to use bolts because of frequent disassembly. Generally, studs are threaded at both ends (single-headed studs are threaded at one end). Usually, one end of the thread is screwed firmly into the component body, and the other end is matched with the nut, which plays the role of connection and fastening, but to a large extent, it also plays the role of distance determination.
Post time: Sep-26-2022