Size of Male Cap - Fits for standard 1/2" threaded pipes and pipe fittings. 4 pcs pipe fittings in the box is enough for your projects. Sturdy Material - We spray an extra unique layer on the pipe fittings to make the pipe fitting remain unchanged after many years of use. The close bite of thread pipe and male square cap will also not get loose easily after long time use. Wide Using Scenarios - Metal pipe fitting male cap fits a variety of styles: steampunk lighting, industrial, factory, French country farmhouse, vintage, retro etc. Home Expert also have a variety of pipe fittings in various sizes, pipe, pipe nipples, elbows, tees and so on to meet all your needs. Easy to Install - These gray pipe fittings are threaded, you can connect the industrial cast iron union to 1/2" pipe fittings, you can easily complete any industrial furniture to your home. Various Sizes Available - Three different sizes for your choice, please check the size before purchasing. You can use Home Expert pipe fittings to make different furniture combination with your own innovations. Fits for standard 1" 1/2" 3/4" threaded pipes and pipe fittings. We spray an extra unique layer on the pipe fittings to make the pipe fitting remain unchanged after many years of use. The close bite of thread pipe and male square cap will also not get loose easily after long time use. Metal pipe fitting male cap fits a variety of styles: steampunk lighting, industrial, factory, French country farmhouse, vintage, retro etc. Home Expert also have a variety of pipe fittings in various sizes, pipe, pipe nipples, elbows, tees and so on to meet all your needs. 1" 1/2" 3/4" sizes are available for your choice, please check the size before purchasing. You can use Home Expert pipe fittings to make different furniture combination with your own innovations.