Hex Nut is used in conjunction with Threaded Rod and screws to connect and fasten parts. Among them, the type 1 Hex Nut is widely used, and the C-grade nuts are used for machines, equipment or structures with relatively rough surfaces and low precision requirements; A-grade and B-grade nuts are used for relatively smooth surfaces and high precision requirements. on machinery, equipment or structures. Type 2 Hex Nut has a thicker thickness M and is mostly used in occasions where assembly and disassembly are often required. The thickness M of the hexagonal thin nut is relatively thin, and it is mostly used in situations where the surface space of the connected parts is limited.

Classification: Classified by tooth spacing: standard teeth, regular teeth, fine teeth, very fine teeth and cross teeth.

Classification by material: stainless steel hexagon nuts and carbon steel hexagon nuts, copper hexagon nuts, iron hexagon nuts.

Classification by thickness: hexagonal thick nuts and hexagonal thin nuts.