GB1228 Steel Structure Bolt

GB1228 Steel Structure Bolt is a commonly used standard hexagon bolt, Its common size is M3-M60. Its general grade is 10.9, The material of carbon steel allows the surface to be galvanized, The black galvanizing will protect it from corrosion and rust, Appropriate size and spacing of threads for better connection, The commonly used hexagonal head makes its application field very wide. All our products come with ISO certificates, DIN 6914 Carbon Steel Black DIN6914 Steel Structural Hexagon Head Hex Heavy Bolt Have good after-sales, GB1228 Steel Structure Bolt Have good quality inspection Incoming quality contral( IQC)→Process Quality control(PQC)→Output quality control(OQC), and the random samples is sent to TUV for testing. If the customer received the goods and found quality problems, QBH company promises to be responsible for returning money or replenishing the goods, DIN6914 Steel structural hexagon heavy bolt Ten years warranty. GB1228 Steel Structure Bolt application scenarios are very wide. The product massively applies in the bridge/road/the petroleum pipeline facility/the wind power generation and steel structure project.