HNF Hex Nut with Flange 1. Surface treatment: zinc plated, EG, VC, black,Nickel Plated etc 2. Material: Mild Steel, Carbon steel, stainless steel 3. All the products we supply are under strict control. And we offer good after-sale service. 4. Your special designs are welcome and your requirements are satisfied 5. We offter various types of high quality building materials such as nails, screws, iron wires, welding electrodes, welding wire and safety products etc..... . 6. Our company has strong supply ability, we have our own warehouses to shorten the delivery time, can meet our customers' demand anytime.