Item Descriptions:-Thread Diameter: G1/2(approx. 20mm);The brass fitting has female G threads for connecting and fastening to male threaded pipes.-The faucet locking nut is made of stable and durable brass, which is reliable, with high strength, not easy to rust, and has a long service life.-Mounts to the faucet adapter with a lock nut to secure the faucet for deck mounting or wall mounting.Very easy to install, just hand tighten it.-Mainly used for connecting and tightening joints and pipes. Widely used in outdoor gardens, washing machines, air conditioners, water heaters, storage rooms, etc.-Our product contains 2pcs locknuts and 4pcs gaskets, which can be used together to meet your daily needs and replacements.Package:2 x locknuts4 x gasketsItem Specifications:Material:BrassGasket material:SiliconeFastener type:Flange, Hex, LockSize:1/2 Inch