Features:
1) Material: 20MnTiB 35VB
2) Property Classes: 10.9s
3) Tension Strength: 1040??1240 Mpa
4) Hardness: HRC 33--39
5) Type: Hex head
6) Diameter: M16-M64mm
7) Length: 50-170mm
8) Surface Treatment: Dichromate, galvanization, black, plain
9) Standards; GB1228-1231, GB3632, ASTM A325, ASTM A490, ASTM A325M, ASTM A490M, ASTM F1852, DIN 6914, in grades 10.9, 12.9.
10) USE: Our high strength bolt with nut and washers are mainly used for structural connections, such as the construction of steelworks, railway, bridge, power plant, boiler station and etc.
Hex Bolt and Nut