Description
Material：Steel
Standard：DIN
Head Style：Oval, Round, HEX
Surface Treatment：Plain.Black.White.Zinc Plated. HDG
Size：All Size
Grade：4.8/6.8/8.8/10.9/12.9
OEM&ODM：Acceptable
Place of Origin：NanJing, China
Brand Name: NanJing Adamant
