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Car wheel bolts are high strength bolts used to connect vehicle wheels. The connection position is the hub unit bearing of the wheel. The general miniature car is 10.9 grade, and the large and medium-sized vehicle is 12.9 grade. The structure of car wheel bolts is generally a knicks file and thread file.Car wheel bolts are mostly of grade 8.8 or above, which are responsible for the large torque connection between the hub and axle of the automobile. Double-head hub bolts are mostly of grade 4.8 or above, which are responsible for the connection of lighter torque between the outer hub shell of the automobile and the tire.
Performance grade: carbon steel: grade 4.8/8.8/10.9/12.9, stainless steel A2-50/A4-70/80, etc
Surface treatment:carbon steel surface treatment is generally boiled black, galvanized, non electrolytic zinc sheet coating, thick galvanized vzd and thick galvanized
Zinc plus sealing (zsml), zinc nickel coating silver (znshl), zinc nickel coating black (zhbh)
Wuxi Zhuocheng Mechanical Components Co., Ltd. is established in 1990, and one group of manufacturing and selling professional fastener
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