1.Certificate: ISO 9001 2.Material: Carbon steel 3.Grade: 8.8 4.Finish: Galvanized ... .Materialcarbon steel and stainless steel2.Size3/8,5/8,2/3,1/2,1or M8-M64 and so on3.Payment30% deposite by ... sight.4.ServiceAny problems about the quality, we will pay for the loss or refund5.PackageFirst carton, then on the export ... .alibaba.com Standard implement: DIN, BS, ANSI, GB, ISO Black Stud Bolt