Brand Introduction: This screw is multi-functional and can be used for various bike parts, such as stem, cup holder, and more. Made from high-strength steel, it is durable and features strong bearings. Two types are available for you to choose from. Suitable for various bicycles. Features: Easy to use with internal hexagonal wrench High strength, durable and rust resistant Precisely crafted, non-slip design with spacer Excellent replacement for bicycles Specifications: Material: Steel Type: M6, M5 Color: As shown in pictures Size: Thread Length: 20mm (0.79in) Diameter: 5mm (0.20in) Length: 6mm (0.24in) Quantity: 5 pieces (other accessories shown in the picture are not included) Note: 1. Please allow 1-3cm error due to manual measurement. Ensure you are comfortable with this before purchasing. 2. Due to differences in monitor displays, the picture may not reflect the actual color of the item. Thank you. Package includes: 5 x Screw (with spacer)