Size Name: M10 Description: Specifications: Rust resistant high hardness and no pollution Material: A2 Stainless Steel Size: M2.5, M3, M4, M5, M6, M8, M10 Note: 1. Please allow for minor error due to manual measurement. Thank you for your understanding. 2. Monitor is not calibrated same. Item color displayed in photos may slightly differ from the actual object. Take the real thing as standard. Package included: 1 x 10pcs Internal tooth serrated lock washer