Premium aluminum alloy bicycle screws specially designed for cycling and mountain bike accessory installation. Adopting high-quality aluminum alloy material, it features lightweight texture, sturdy structure and excellent corrosion resistance, effectively reducing overall vehicle load while maintaining stable fastening performance. Classic umbrella-shaped design fits perfectly with mountain bike assembly structure, with smooth surface and neat appearance, easy for installation and disassembly. The screw body is finely processed with uniform thread, tight engagement and stable fixing effect, not easy to loosen during riding. Suitable for various mountain bikes, road bikes and daily cycling equipment fastening assembly. Widely used in bicycle spare parts, outdoor cycling accessories and sports equipment matching. Factory direct supply with stable quality, support bulk wholesale and customized non-standard specifications to meet different cycling equipment assembly needs.