... AS, ISO, GB, Nonstandard bolt Machine Part Self Tapping Screw model numberM3.5-6Brand NamePhoriaOriginal of PlaceSuzhou ChinaMaterial1018,Carbon Steel, Material: ... stainless steel, brassdiameter(mm)7.0Length(mm)6.0Port of LoadingShanghai ChinaPurchasing NoticePlease let's know the size, quantity, ... our company is specialize in producing various kinds of special screws. Machine Part Self Tapping Screw