High strength BENZ front D-bolt 1.Material:40 Cr 2.Grade:10.9 3.Surface Finish:Zinc Galvanized 4.High-strength CHANG ... Treatment-Maching-Grinding-Roilling-Plating-Packing-Warehousing 1.Products: Rear,front wheel bolts,stainless steel U-bolts,center bolts for kinds ... : black,grey,golden,silver. 7.Metric Standard Grade: 8.8,10.9=1040N/mm,12.9=1240N/mm. 8.HRC: 32 ...