... . Size: 2.5*1.4cm3. JL-SCR-045 ScrewMaterialIron, Brass, Carton steel, Stainless steel, Alloy steelSurface TreatmentChrome plating, Silver ... , Hexagon socket button head and etc.3. by type of drive insertsPhillilps, Slotted, Pillips/slotted combination, Cross recess ... type, H drive, Hexagon socket, Square socket, Torx, Triangle ...