This kit will come with nuts, washers. The nuts is used for fastening the threaded pipes and the flat washers can distribute loads of threaded pipes, provide a smooth surface. Mainly applied on repairing or replacing chandelier,ceiling light or DIY projects.SpecificationMaterial: Carbon SteelSurface Treatment: Zinc PlatingThread Size: M10Sloted Hex Nut Size: 14x30mm / 0.55"x1.18"Nut Size: 4mmx14mm / 0.16"x0.55"(T*W)Flat Washer Size: 10mmx20mm / 0.39"x0.79"(ID*OD)Teeth Washer Size: 10mmx17mm / 0.39"x0.67"(ID*OD)Packing List: 2 x Coupling Nut, 25 x Nut, 25 x Flat Washer, 25 x Teeth WasherAdvantage 1.This kit including the nuts, washers, and it can save your time and effort to find match parts.2.Zinc plating surface treatment can provide good corrosion resistance.Instruction 1.Before you screw the nuts on the threaded lamp pipe, please install the washers firstly.2.The hex sloted nut can connect two threaded pipe together.NOTE: Please confirm the thread size of your thread pipe before ordering.