1. According to the nominal thickness, hex nuts are divided into three types: type II, type II and thin type. Nuts above grade 8 are divided into two types: type I and type II. Type I hexagon nuts are widely used, and Type 1 nuts are divided into three levels: A, B, and C.
2. Classification by tooth distance: standard teeth, regular teeth, fine teeth, very fine teeth and reverse teeth.
3. Classification by material: stainless steel hexagon nuts and carbon steel hexagon nuts, copper hexagon nuts, iron hexagon nuts.
4. Classified by thickness: hexagonal thick nuts and hexagonal thin nuts.
5. Classified according to the method of use: hot-melt copper nuts, hot-pressed copper nuts, embedded copper nuts and ultrasonic copper nuts.
Hex Nut is a kind of hardware commonly used in daily life. For Hex Nut, it is a standard accessory. Its specifications also have general specifications. Therefore, if you usually buy Hex Nut, you can buy general specifications to meet the daily needs of the family. Needed, such as the commonly used ordinary hexagonal application is very wide
1. Ordinary external hexagon - widely used, characterized by relatively large fastening force, the disadvantage is that there must be enough operating space during installation, and adjustable wrench, open-end wrench or glasses wrench can be used during installation. The above wrenches need to be large operating space.
2. Cylindrical head hexagon socket - is the most widely used of all screws, because it has a relatively large fastening force and can be operated with a hexagon wrench. It is very convenient to install and is used in almost all kinds of structures. The appearance is more beautiful and tidy. The disadvantage is that the fastening force is slightly lower than that of the outer hexagon, and the inner hexagon is easily damaged by repeated use, making it impossible to disassemble.