... to customer's demands)2.Surface finish: Zinc, Nickel, Chrome, Tin, Silver, Copper, Gold Plated, Painting, Anodizing Heat treatment, Black Oxid ... precision screw, pan head screw, stainless steel screws,slotted set screw,combination screw,oval head self drilling screw,flat head screw,aluminum screws,galvanized self drilling screw,hex flange self-drilling screw, self drilling screws.2.Our screw are ...