Hexagon Weld nut: DIN929 1.Material: carbon steel,stainless steel200,304,316 2.Surface:plain, zinc plated 3.Size: M4-M20 Square weld nuts;DIN 929Material: carbon steel,stainless steel 200,304,316 Surface: zinc plated (Yellow/white/blue zinc ) Standard:DIN, ANSI, JIS, BS Size: M4-M20 Grade:A2,A4 Packing: box or bulked in carton ;pallet Customized packing is accepted