The plug cap designed for the STECKO system socket is a durable and reliable solution created to ensure maximum protection and long-lasting performance. Manufactured from high-quality automatic steel and finished with a galvanization process, it offers excellent resistance to wear, corrosion, and demanding working conditions. The sealing system combines an NBR o-ring with a Teflon backup ring, delivering outstanding tightness, leak prevention, and stability even under pressure fluctuations. This robust construction guarantees secure closure, extending the service life of the socket and maintaining optimal functionality. Engineered for precision and efficiency, the plug cap is an ideal choice for industries that require dependable connections, such as hydraulics, pneumatics, and mechanical engineering. Its advanced sealing technology and premium materials make it a cost-effective investment, reducing maintenance needs and downtime while ensuring consistent performance. Designed to meet the highest quality standards, the plug cap not only protects the system but also enhances operational safety and reliability, making it an essential component for professional applications.