The size and design of the screws have accurately calculated to provide sufficient tightening force to that the kettle holder is firmly fixed to the bicycles,avoiding vibrations and loosening. Perfect for cycling enthusiasts,these screws are suitable for most bike water bottle cage,making installation and replacement a easy. Elevates your biking with these stainless steel screws,providing and confidence during your rides. Designed with precisions,our M5x12mm stainless steel water bottle cage screws provide a secure and fastening for your bike accessories. holder screws have good resistance and durability,and can maintain stable and in various harsh.