High Strength Steel Black Structure Hex Bolts DIN6914

High Strength Steel Black Structure Hex Bolts DIN6914 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, High Strength Steel Black Structure Hex Bolts DIN6914 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.