... production equipmentsbolts and nut1.Our company is specialized in the production of various high precision Hexagonal nuts,Square nuts,Self- ... nuts,Threaded nuts,stud bolt and nut,stainless steel nut and bolt, aluminium bolt and nut,hex bolt and nut,brass ... appliance,electric motor ,thermostat,switch.3.The materials of flanges are stainless steel, steel, copper, brass, aluminum, etc..4.With One ...