Welcome to our StorePlease tell us first when you have any problem, we will provide the excellent provider and remedy the difficulty ASAP. Thank you so much. Product creation : Material: Stainless steelSurface: UntreatedModel: M2 M2.5Length: 4-12mmHead shape: Cylindrical head/knurledCategory: Machine screwsStandard type: Non-standard customizationQuantity : According on your desires