Street Address: Sanhetan Industry Zone, Taozhou, Zhejiang
City: Taizhou
Province: Zhejiang
Country/Region: China
There are all tire/wheel bolts and their are use to auto part. Material: 40Cr,42CrMo. Technics:hot/cold forging-lathes-hot treatment-grinding-rolling-plating. Grade:10.9~12.9(HRC 32-39~HRC 38-44). Tensile strength:106.1 kg/mm2~124.5 kg/mm2. Finish:blackening;plating-Zinc;dacromet. Weight:1-0.6 KG/PCS.