Authentic UNIMOG A4379900263 hollow screw, also known as a banjo bolt, specifically designed for critical fluid connections within the hydraulic and brake systems of Unimog 400-series vehicles. This essential component features an M14x1.5 thread and a 19mm wrench size, ensuring a secure and leak-free fit for optimal system performance. It is a genuine OEM part, compatible with a wide range of Unimog models including the 403, 406, 407, 413, 416, 417, 424, 425, 427, 435, and 437.