Street Address: No. 9 Checheng West Road
City: Shiyan
Province: Hubei
Country/Region: China
Material:Steel
Surface treatment:Dacromet
Standard:ISO
9L engine
12.9 high strength MJ thread (the aviation thread) bolts, high fatigue resistance and stable friction coefficient, suitable for high-power engine shock absorber fixtion, currently used in Cummins 9L engine.