DIN933 hex bolts - detailed description of the whole tooth: 
 Product Name: 12.9 hex bolt / hexagon bolt 10.9 
 Category: Hex Bolts 
 According to the standard: DIN931/DIN933 GB5782-2000/GB5783-2000 DIN6914 Hex Bolts 
 Material: SCM435 35CrMo 42CrMo 
 Size: M3-M42 
 Other: 
 Wind turbine fasteners: 
 East Lo hardware and the world famous manufacturer of wind energy co-production of a series of high-strength fasteners for wind turbine assembly. 
 East Lo hardware R & D and to provide wind power fasteners include: high strength bolts, nuts, flat washers. For wind turbine blades, nacelle, tower and other connections and fixed. 
 Example: the name of the tower fasteners: hex bolts 10.9 or 10.9 magnitude hexagonal bolts 
 Standard: GB5782 
 GB/T1228 ~ 1231 10.9S/8.8S 
 M16 ~ M30 
 ASTM A490M/A325M 10.9S/8.8S 
 M16 ~ M36 
 DIN 6914 ~ 6916 10.9/8.8 
 M16 ~ M36 
 JIS B 1186 F10T/F8T 
 M16 ~ M30 
 Product Name: ASTM A325 high strength bolts ASTM A490 high strength bolts (strength bolts HSB) 

 Material: A325 A490 A449 

 Category: ASTM A325 bolts TYPE 1 A490 bolts 

 According to the standard: 

 Specifications: 1 / 2 to 1-1/2 between 

 ASTM bolt of the application: 
 A: ASTM A325 TYPE1 in the amount of carbon, carbon boron, or carbon steel for general steel, hot dip galvanized. 
 ASTM A325 TYPE2 1991/11 onwards disabled. 
 ASTM A325 TYPE3 weathering steel, corrosion resistance of weathering steel is equivalent to A242/A566/A709 so suitable for the steel used in conjunction with the weather. 
 Can be hot-dip galvanized. 
 Two: ASTM A490 TYPE1 made of alloy steel bolts with nominal diameter of 1 / 2 "to 1 1 / 2" for general steel, not galvanized. 
 ASTM A490 TYPE2 bolts are usually made of low carbon martensite Steel, the nominal diameter of 1 / 2 "to 1 1 / 2", can not be hot-dip galvanizing. 
 ASTM A490 TYPE3 weathering steel, corrosion resistance of weathering steel is equivalent to A242/A588/A709 so suitable for use together with weathering steel. Can not be hot dip galvanized 
 Three: ASTM A449 TYPE1 in the amount of carbon, the nominal diameter of 1 / 4 "3." Suitable for general steel structure, can be used for high temperature, can be hot-dip galvanized. 
 ASTM A449 TYPE2 Low Carbon Martensitic Steel is made, the nominal diameter of 1 / 4 "to 1", not hot-dip galvanized