The hexagonal nut is used in conjunction with screws, bolts and screws to connect and fasten parts Among them, the Type 1 six-purpose nut is the most widelyused, and the C-grade nut is 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. machine, equipment or structure. The thickness M of the type 2 hexagon nut is thicker, and it 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.
Hexagon nuts are divided into three types: I type, II type and thin type according to the nominal thickness. Nuts above grade 8 are divided into two types: type 1 and type II. Type I hexagon nuts are the most widely used. Type I nuts are divided into three grades: A, B, and C. Among them, grade A and grade B nuts are suitable for machines, equipment and structures with small surface roughness and high precision requirements. Class C nuts are used on machines, equipment or structures with relatively rough surfaces and low precision requirements;
The thickness of the type II hexagon nut is relatively thick, and it is mostly used in occasions where assembly and disassembly are often required.
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.
Classification according to the method of use:hot-melt copper nut, hot-pressed copper nut, embedded copper nut