watch case screw Diameter:M01.0-4.0mm; material:steel,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 size, produce as your requirement is okFigure of screw headP/T/B/F/V/WHP ...