Production range: 1.bolt for car 2.bolt with flange face 3.mainy for car application 4.8.8 grade carbon steel material Keywords: bolt for car, 8.8 grade flange bolt, flange bolt Material: carbon steel with 8.8 grade Surface: Multicolored plated Size:M12*1. Standard: GB578 This kind of outside flange face bolt is used as car fittings. We are the factory for mainly making these bolts and nuts for more than 10 years. With stable quality and excellent service, welcome the customers to do business with us by send the drawing or sample