Feature:1. COMPATIBLE MODELS: Ball head screw fastener for WLtoys 144001 144002 144010 124010 124008 124007 124016 124017 124018 124019 RC cars ensures the stability and reliability of the vehicle for long term use.2. STABLE AND FLEXIBLE: The ball head screw is designed to fit perfectly with the interface of other parts of the vehicle. Its ball head part can rotate flexibly and the connection is stable and reliable, which reduces the performance degradation caused by friction and wear.3. ACCURACY DESIGN: The threaded part of RC car ball head screw is finely processed to ensure a tight fit with the nut and not easy to loosen. 10pcs set, sufficient quantity to meet your usage needs.4. EASY INSTALLATION AND DISASSEMBLY: RC ball head screws adopt standardized sizes and universal interfaces, which makes the installation and disassembly process easy and quick. Replacement and maintenance can be easily accomplished without the use of special tools.5. DURABLE: Ball head screws are made of premium iron material with special surface treatment process, which can effectively resist rust and oxidation, and can maintain stable performance and appearance even when used in harsh environments.Specification:Item Type: Ball Head ScrewwMaterial: IronBall Head Diameter: Approx. 4.8mm / 0.19inScrew Diameter: Approx. 2.5mm / 0.10inApplication: For WLtoys 144001 144002 144010 124010 124008 124007 124016 124017 124018 124019 RC CarPackage List:10 x Ball Head ScrewNote:Manual measurement, please allow some errors.