HONISHEN Mirror-top design is more attractive and prevents rusting.The hex lug bolts are 10.9 grade, and passed over 72-hours heat treatment and hydrogen treatment.Not only the hardness reach to HRC32-39,but also it’s ductility can be ensured and prevent craze.We provide our customers with detailed information on each bolt type including measurements and offer several types of wheel bolts including conical seat type bolts, ball seat type bolts, and PCD wobble bolts. Our hex lug bolts come in a variety of colors and finishes for something that looks great on every automobile.All of our hex lug bolts are 10.9 grade,also we can produce 12.9 grade.

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