Material:Carbon steel, stainless steel SS304, A2 ,Stainless steel SS314,A4,Brass Standard:DIN,ASME,ASNI,ISO Strength: Grade 4.8,Grade 8.8,Grade10.9,Grade12.9 A2-70, A4-70, A4-80 Finishing: Yellow, blue, white zinc plated, Galvanized,HDG,Chromate,Dacromet Origin: Yongnian, Hebei, China Minimumordel: Not limited to. Our strengths: one-stop service, high quality, competitive prices, on-time delivery, technical support, supply of materials and test reports. Notice: PLEASE ADVISE SIZE, QUANTITY, MATERIAL OR GRADE, SURFACE, if customized please provide drawing or size.