Sealing pipe ends requires fittings that are both durable and easy to install. The square head plug, made from brass, provides a secure closure that protects piping systems from leaks, contamination, and damage. Its square head allows simple tightening with a wrench, while the brass construction delivers natural resistance to corrosion, chemical exposure, and wear. Designed for long-lasting performance in marine and industrial environments, this plug maintains reliability under pressure and frequent use. Whether you’re completing new installations, handling repairs, or managing metric maintenance tasks, the brass square head plug provides dependable sealing for secure pipe systems.