Kingpluse Industry is a fasteners and hardware manufacturer, as well as an exporter with a wide range of industrial products located in Shanghai.We have advanced production facility, abundant technical forces and complete quality assurance system.We can produce various kinds of screws. Products Details: 1. Material: Carbon steel 2. Diameter : 3.5, 4.2, 4.8, etc. 3. length: 10mm-----152mm 4. Color : Black/Grey phosphate, ZP/YZP 5. Thread : Fine thread, Coarse thread Package:box, carton, bag, pallet; And we can produce special screws according to customer's drawings and samples.