The Square Head Plug closes unused or service ports in fluid circuits, creating a sealed termination point within threaded connections. The square head allows secure engagement with standard tools, supporting controlled installation and removal. The threaded body maintains uniform contact along mating threads, limiting leakage paths during servicing.Attributes:• Threaded body provides uniform sealing contact along mating threads.• Provides consistent port closure across service intervals.• Square head profile supports firm wrench engagement during service.Applications: The Square Head Plug is used in fluid and air piping systems where unused or service ports require secure closure during operation and service activities.