Hex nut 1)Specification:DIN 934 2)Finishing:ZP,HDG,Black ... profile:Our main product are steel fasteners,for example,hex nut,flat washer,anchor bolt and so on. that we ... have own factory,.it's producing nut,washer,bolt and other fasteners.the products standard ranging from ... please send us the drawings and specifications.8)Usage:Hexagon nut,the material is carbon steel,they can be used in ...