... brass finish:Zn/Ni/Cr ISO9001,ISO14001,ISO16949 Watch case screwDiameter:M1.0-4.0mm;material:stainless steelfinish:Zn ... /Ni/CrISO9001,ISO14001,ISO16949Screws we can do product nameWatch case screwBrand NameYUEIMaterialstainless steel, steel, brass, etcSizeAll frequently-used ... screw,washer screw,colored head screw,water proof screw,hard disk screw,camera screw,watch screw,precision shafts and pins ...