Cofix screw connection is a separable screw connection with a metric thread made of polyamide 66. It is halogen-free, non-flame-propagating and available in black. This separable screw connection is used together with the separable nut, especially for connecting Co-flex pipes to distributors and devices. The advantage is that the screw connection can be separated. Protection class IP43 according to DIN EN 60529. Temperature resistance according to LV312-3: -40° C to +120° C, briefly up to +140° C. Flammability: UL 94 HB. DIN EN 61386-23 (VDE 0605-23).