Features 1、Material: The screws are made of high strength Ti alloy, ensuring that each disc screw has excellent strength and toughness while being extremely lightweight, contributing to the performance upgrade of your mountain bike. 2、Diameter: The single disc screw precisely matches the special needs of mountain bike chainwheel system, and the 6.5MM diameter design ensures a seamless fit between the screw and the disc for enhanced stability and peace of mind when riding. 3、Counterlocking Structure: The unique counter locking design effectively prevents the screws from loosening during riding, and ensures that the disc is firmly locked even on bumpy roads, enhancing the reliability and efficiency of the overall drive system. 4、One Piece Thread: The accurately machined integrated thread not only improves the screw bite, but also makes it easier and faster to install and remove, saving maintenance time and enjoying more riding fun. 5、Weather Resistant: The bike chainring screws effectively resist damage from riding in the rain or in the seaside environment, keeping the appearance and function of the chainring screws as new for a prolonged period of time, as well as extending their service life. Item Type: Bike Chainring Screw Material: Ti alloy Diameter: Approx. 6.5mm / 0.26in Package List 4 x Bike Chainwheel Screws 1 x Sticker