... ,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, ... /V/WHP/LH, etc.Figure of threadMs, BTT, STT, PTTI, TB, TY, TW, PTTII, SHAFT, PINscrew slot formPhillips, Phil-Slot, ...