Black Coated schedule 40, 150 PSI The nominal pipe size diameter is 1/2 and it has a wall thickness which is specified as Schedule 40., The fitting meets all applicable ansi and ASTM standards. âš California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www., p65warnings., ca., gov. This is an Supply Giant nipple fitting with male threaded ends, which is made of steel with a galvanized coating for improved durability of the Part. Galvanized Pipe Close Nipple, 1/2 inch x Close, 1/2 x Close Black Coated Pipe Fitting SUPPLY GIANT OQHM2510 Close Galvanized Steel Nipple Pipe Schedule 40 Pipe Fitting Schedule 40 pipe Wall thickness SUPPLY GIANT OQHM1200 Close Galvanized Steel Nipple Pipe Fitting with 1/2" Nominal Size Diameter, Single Unit. Regular price: $7.99 About this item SAVE HUGE: 10-Pack 1/2 Inch Galvanized Nipple Pipes for Greatly Reduced Price and Hassle Free Project DECORATIVE STYLE: Create The Perfect Industrial Shelves, Furniture and Accessories With Our Cast Iron Pipes To Add Rustic Look To Any Room