Cyclists, these Wanyifa titanium screws are perfect for upgrading your bike's components! Made from 6AL/4V titanium alloy (Grade 5), they're incredibly strong yet lightweight - ideal for saving every gram possible. The M5x12mm size with 0.8mm pitch is standard for many bicycle applications, and they require a 4mm Allen wrench for installation. The rainbow finish isn't just for looks - it's a durable coating that adds corrosion resistance while giving your bike some colorful flair. The package includes 4 bolts with washers, so you have spares for future projects. The head size is 8.5mm in diameter and 5mm in height, conforming to DIN912 standards. Whether you're building up a new bike, replacing worn hardware, or just want to add some custom touches, these titanium screws deliver professional-grade quality. They're particularly popular for weight-conscious builds where every gram matters. The threading is precise and clean, so installation is smooth without cross-threading issues. If you're serious about your bike's components and want hardware that combines performance with style, these titanium bolts are definitely worth the upgrade from standard steel screws.