Bolts And Nuts ,no-standard bolts.nuts.inject bolts.nuts Embossed For Machinary And Electronic Devices1):material Al,stainless steel,brass and so on as customised2):Can be plating and oxidation3):Size:1mm-200mm and tolerance between +0.01 and -0.014):Used on moble.machinary and electronic products asfixed and connect function 5):we are OEM manufacturer, drawings are welcomed