Connect your 4mm tubing with confidence using this L-shaped screw fitting. Designed for secure and reliable connections, this fitting features an M5 thread for easy integration into your system. Ideal for applications requiring a 90-degree angle connection.This is an L-shaped screw fitting designed for 4mm diameter tubing. It features an M5 thread for connection. The fitting is intended for use with hoses and provides a 90-degree angle for routing.