Nut (Metric Tube)

The Nut (Metric Tube) is a fundamental component of the double-ferrule compression system, specifically engineered to provide the mechanical drive required to secure metric-sized tubing to a fitting body. When the nut is tightened, it moves axially to compress the front and back ferrules, initiating a precision swaging action that creates a leak-proof, high-pressure, and vibration-resistant seal. To ensure reliable performance and ease of installation, the internal threads are often silver-plated to prevent galling and reduce torque during the assembly process. Manufactured from high-grade 316 stainless steel, these nuts are designed to maintain structural integrity under extreme conditions and allow for multiple remakes, making them essential for the assembly and maintenance of professional fluid systems, instrumentation, and industrial process lines.