Features1Perforated Hollow Aesthetic: The unique perforated hollow design of the bike washer and screw not only reduces weight but also adds a sense of lightness, showcasing a modern and minimalist aesthetic that infuses your bike with a touch of futuristic technology. 2Enhanced Ventilation: The perforated structure promotes airflow, aiding in rapid heat dissipation to prevent overheating of parts during prolonged rides, thereby improving the overall system stability and longevity. 3 Ti Alloy Material: Crafted from Ti alloy, the front derailleur fixing screw and washer offer an ideal balance of durability and lightweight properties. They are not only strong and resilient but also highly erosion resistant, ensuring performance and long lasting durability even in harsh conditions. 4Arc Shaped Half Moon Design: The arc shaped half moon design, specifically tailored for front derailleur applications, tightly fits the screw and contacting surfaces, effectively dispersing pressure to prevent excessive localized stress. This ensures a secure attachment of the screw and accurate operating of the gearing system. 5Wide Application: This bike stem bolts screws with washer has a wide range of applications and can be used for riding, maintenance, etc. It is vital to ensure that the front derailleur is securely mounted in the proper position to prevent problems caused by loosening or shifting while riding.SpecificationItem Type: Bike Washer and ScrewMaterial: Ti AlloyPackage List1 x Screw1 x Washer1 x Sticker