... 10000PCS 4.Lead time:15 days Black Wing Screws Square Wings A. DIN316 Wing Screws Specification: 1.Screw ... finish, black oxide, zinc plating(white, yellow, black colour), nickel plating, chromate plating, HDG, Dacromet, Geomet.5 ... impression Factory Locationdongcheng town, dongguan city, chinaFactory Cover5000 square meters Employee350 personnelsFederal tax Number: 44190066815777X Equipments:300 sets ...