... ISO9001 SGS Specifications Custom made bolts screws Xiamen Haixingcheng Metal Products Co., Ltd. is a fastener manufacturer from Xiamen,China ... steel, silicon bronze,etc.Head/Tread stylesAccording client's requiresCoating/Surface treatmentZinc,Tin,Sn/Pb,Nickel,Chrome,Titanium ... ISO14001:2004Carton size 30X20X20cm or according client’s requires Equipmentscertificateplease do not hesitateto contact us!