Material:Stainless steel (303,304, 316, 201),carbon steel (35#, 45#),galvanized, aluminum alloy, copper, carbon steel and so on Standard:GB,DIN,BS,ISO,JIS,ANSI,UNC,Nonstandard or custom Grade:4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80,etc Size: M2-M48 or as request Finish: Plain,Zinc Plated(Clear/Blue/Yellow/Black), Black oxide,Nickel, grey phosphate,nickel,ruspert,H.D.G,etc Thread: unc,unf,metric thread Package: Plastic bag / small box +outer carton +pallets 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.