Our 304 and 316 150 lb cast hex head plugs and square head plugs come in a variety of sizes to fit various piping configurations. We offer 150 lb threaded cast plugs. View our stainless products line card. Various cast plug sizes and weights to choose from. Our pipe sizes and weights chart will help you search individual product specifications. Cast plugs generally conform to ASA B16.3 and pipe threads conform to ASA B2.1 standard for manufacturing. View the standard specifications chart. Threaded and socket weld plugs available in 304 and 316 from Shaw Stainless. View the various grades of stainless steel. View thousands of stainless steel pipe and fitting products, as well as various services Shaw Stainless offers. This Reference Catalog identifies stainless steel pipe plugs and other pipe fittings through specification charts and illustrations. View theoretical bursting pressures for various stainless steel pipe. Cast pipe plugs close off the end of a pipe or complete pipe system. Plugs are very similar to caps but pipe plugs, whether hex pipe plugs or square pipe plugs, are male threaded and fit inside of the pipe.