What is this?These thread adapters are suitable for threaded lamp pipes. Widely used for repairing pendant lights, chandeliers, electrical parts, or making other lamp projects.What will I get?Color: Silver ToneMaterial: Galvanized IronThread Pitch: 1mmMale Thread Size: M10Female Thread Size: M8Overall Length: 10mm(0.39")Package Content: 15 x Thread Reducing NutAre there any advantages of the product?Made of iron material, zinc coated, with good strength and rust resistance. Thread reducing nut mainly for converting 2 different threads, very convenient.How to use it?All thread design, easy to screw into threaded nuts or threaded screws.What should I notice?Please check the thread size before buying to make sure it will fit your project.