... 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 ... TY, TW, PTTII, SHAFT, PINscrew slot formPhillips, Phil-Slot, LR, LHS, LH.StandardJIS, JCIS, Din, ISO, etcSurfacePlating Zn/Ni/ ...