Feature:1. Alloy Material: Made of high quality alloy with waterproof, rust and features, having good performance for long service life.2. Fine Workmanship: Automatic thread rolling machine processing, thread dense with high strength, stable fastening process, but also strengthen the overall finish, also has bright beautiful color.3. Powerful Features: Due to the alloy material, the has the features of being rust proof, light and compact, aslo easy to carry, suitable for long term use.4. Easy to Use: Manufactured with accurate size and shape design, has a close fitting, simple for installation and removal, saving your time and energy.5. Portable Item: Designed with light weight and high strength, will not increase the burden or cause additional energy waste.Specification:Item Type: Headset BoltMaterial: AlloyApplication: for BikeProduct Size: Approx.M6x30mm（Flat Head）Gross Weight: Approx.8g/0.3oz Package List:1 x Screw