We are haiyan brotherfastener based in Jiaxing , China. We are member of exporthub.com since June, 2011. Our business is related to Minerals & Metallurgy industry and we specifically deal in fastener. Please find our product details below:sell hanger boltstandard or no-standardsize:M5-M20finish:plain zinc HDGpacking: bulk packing or small packing according to customer's requirmentSell Din571finish:plain zinc HDGpacking:bulk packing or small packing according to customer's requirmentsell Din934finish:plain zinc HDGpacking:bulk packing or small packing according to customer's requirmentsell Din6923surface:plain zinc blackpacking:25kg bulk packing or small packing according to customer's requirment1)Standrad: DIN6923 IFI D21 JIS1190 and Non-standard 2) SIZE? M3-M20. UNC 10# -3/43) Material:Low carbon steel, Q195, 1008C, 1010C, 1035C, 40ACRThank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.