This fastening screw for the XT hydraulic disc brakes of mountain bikes is made of metal, specifically titanium alloy, which is sturdy, durable, and of excellent quality. Its specification is a split oil reservoir with a size of M6*23.5mm. The precise dimensions can provide just the right fastening effect for the bike's hydraulic disc brakes. This screw is compatible with the XT hydraulic disc brakes of mountain bikes and can well meet the usage requirements of mountain bikes on various complex road conditions. Its purpose is clear. It is specially used for fastening the XT hydraulic disc brakes of mountain bikes, ensuring the stability and reliability of the disc brakes during the ride and allowing cyclists to ride more safely and with peace of mind. It is highly favored in regions such as Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East. Moreover, it has an authorized own - brand, and its quality is trustworthy.