Unifix Grade 12.9 Socket Head Cap Screws DIN 912 Bright Zinc Plated - M8 x 40 (Box of 200)The Unifix Grade 12. 9 Socket Head Cap Screws DIN 912 Bright Zinc Plated M8 x 40 (Box of 200) are designed for high strength applications, ensuring durability and reliability in various settings. High Strength Grade 12. 9 Material for Enhanced Durability Socket Head Design Allows for Easy Installation Suitable for Heavy Duty Applications Corrosion Resistant Bright Zinc Plated Finish for Longevity Compatible with Standard Tools for Convenience