The MB Hex Socket O-Ring Boss Plug is a durable steel fitting designed for sealing applications in hydraulic systems. This plug features a hex socket design for easy installation and removal. Made with a Viton O-ring, it provides excellent sealing capabilities, ensuring leak-free performance under pressure. Constructed from high-strength steel, it meets industry standards for durability and reliability. This fitting is ideal for use in various hydraulic applications, providing a secure and efficient solution for fluid containment.