The 3/4 304 Stainless Steel Square Head Plug – SP114 is a threaded pipe fitting used to seal the end of a pipe, valve, or fitting, providing a secure, leak-resistant connection. Its square-shaped head allows easy installation and removal with a wrench or spanner. Designed to close spare connections and reduce contamination risk, it is ideal for maintenance isolation points in the field. Made from 304 stainless steel with MSS Class 150 construction and ASME B1.20.1 NPT threads.