Wheel bolts for Benz1. Material: Carbon steel(45#/40Cr/35Crmo/42Crmo)2.Quality Grade: 8.8,10.9,12.9-grade3.Surface: Phosphate,zink coating,flange,dacromet4.color: black,yellow,grey,silver5.Certificate: ISO9001：20086.Packaging Details:1 piece in a plastic bag →5 pieces in a small box→ 10 boxes in a carton,or according to the requirement.7.Delivery Time: 4-5 weeks for one cotainer or according the quantity8.Payment Terms:T/T9.We can make products strictly according to the customers requirement (drawings or samples)For more product details, please don’t hesitate to contact us. Your inquiry is highly appreciated