What is the difference between bolts and screws?

Jiaxing Xinhan Technology Co., Ltd. is a professional manufacturer of fasteners, including various bolts and screws. It is located in Haiyan, Zhejiang, which enjoys an excellent geographical location.

Bolt and screw, as fasteners, have some similarities but also significant differences in multiple dimensions. Firstly, from the appearance shape, bolts are mostly cylindrical or hexagonal, with threads; while screws are straight rods, and their head shapes are diverse, such as round head, flat head, etc. Secondly, in terms of standard application, bolts often follow GB, ISO, and other standards, while screws mostly use JIS, ASTM, and other standards. Moreover, their usage scenarios are also completely different. Bolts are mainly used for connecting mechanical structures, such as automobiles, buildings, etc.; while screws are often used for fixing thin sheets, wood, etc.

Finally, in terms of production processes, bolts involve forging, drawing, and other processes, while screws are mainly processed through cold upsetting, hot forging, and other methods. In summary, bolts and screws have obvious differences in shape, standards, uses, and production processes, and each plays an important role in its specific field.