1. Hexagon nuts and screws, bolts, screws with the use of the connection fastening parts. Ordinary hex - is widely used, the characteristic is fastening force is bigger, the disadvantage is that when installation should have enough space, can use when installation live wrench, wrench, open end wrench or glasses all wrench above takes a lot of operating space through the inside of the thread, the same specification nuts and bolts to connect together 2. Main features: easy to install, integrity, without gaskets, reusable disassemble medium carbon steel, with a magnitude of 8.8, 10.9, and other high strength bolts used application range auto - cars, trucks, buses, compressor, construction machinery, wind power equipment, agricultural machinery, casting industry, rail transportation, etc Hexagon nuts and screws, bolts, screws with each other, starting to connect fastening parts through the inside of the thread, the same specifications of nuts and bolts can be connected together, there are generally two kinds of material, one is carbon steel. One is stainless steel, grade 4.8, common nuts, one is grade 8 nuts, one is grade 4.8,

Product name	Hex nut
Product specification	M6-M50
Surface treatment	Black , Zinc Hot dip galvanized
Material	Carbon steel, stainless steel
Standard	DIN, GB
Grade	4.8/8.8
About the material	Our company can customize other different materials different specifications can be customized

1. ordinary hexagonal - widely used, characterized by large fastening force, the disadvantage is that there should be enough operating space in the installation, the installation can use a live wrench or open wrench, or glasses wrench wrench above the wrench need a lot of operating space. 2. cylinder head hex - is the most widely used in all the screws, tighten force is bigger, because he can use Allen key operation, the installation is very convenient, when used in almost all kinds of structure, appearance is beautiful and neat, the disadvantage is that pin is lower than the outside hexagonal fastening force, also repeated use can't remove the socket head broken easily. 3. disk head hexagonal - rarely used in machinery, mechanical properties as above, mostly used in furniture, the main role is to increase the contact surface with wooden materials and increase the appearance of the ornamental. 4. countersunk head hexagon - mostly used in power machinery, the main role of the same hexagon 5. Nylon lock nut -- in the hexagon face inlaid with nylon apron, prevent thread loose structure, used in strong power machinery. 6. Flange nut -- mainly plays a role in increasing the contact surface with the workpiece, mostly used in pipes, fasteners and some stamping and casting parts. 7. ordinary hexagon nuts -- the most widely used, is also one of the most common fasteners.