... fastener: 1.Material:Brass 2.Two part in one set,8.5mm with 4holes 3.MOQ:5000sets 4.OEM is welcomed ... :Φ6mm,7mm,8.5mm,12mm,15mm,17mm,19mm,21mm with four holes or six holes4Finished color:silver, gold, nickel, anti-silver,Antique Brass ... .Short lead time--3~30days(as per order Q'ty) 8.Nickle free, Lead free,OZO free,Rust free.meet Eur ...