Check the listing for details. ALTALINE BICYCLE BOTTOM BRACKET STEEL LOCK WASHER CHROME.. Color: UCP, Condition: New. Listed at 4.10 USD. Specifications: Use: Lock WasherThe lock washer is designed to be used in conjunction with bottom bracket components. Its primary function is to prevent the loosening of nuts and bolts due to vibration and movement during cycling. Material: SteelConstructed from high-quality steel, this lock washer offers exceptional strength and durability. Steel is resistant to deformation and wear, making it ideal for the rigorous conditions that bicycle components often face. Color: UCP (Ultra Chrome Plated)The UCP finish provides the lock washer with a polished, shiny appearance while also enhancing its resistance to corrosion and rust. This finish not only contributes to the aesthetics but also increases the longevity of the component. Brand: AltaLineAltaLine is known for producing reliable and durable bicycle components. The brand is recognized for its commitment to quality, ensuring that each product, including this lock washer, meets the performance expectations of cyclists.Functionality: Purpose:The Bottom Bracket Lock Washer is crucial for maintaining the integrity of the bottom bracket assembly. It provides additional friction between the nut and the bottom bracket, helping to keep the assembly secure and preventing loosening from vibrations or movement. Installation:The lock washer is typically placed under the nut when securing the bottom bracket. It is essential to ensure proper placement for effective locking action. When installed correctly, it helps maintain the alignment and functionality of the bottom bracket system.