10.9 Grade Countersunk Hex Socket Bolt, M12-M24 High-Strength Construction Machinery Flat Head Screw.

This high-strength flat head screw is designed for heavy-duty construction and machinery applications. Featuring a countersunk hex socket design, it fits flush in its installation surface, ensuring a smooth and streamlined finish. Made from 10.9 grade material, it offers exceptional strength and durability. Available in multiple sizes ranging from M12 to M24, this bolt ensures a secure and reliable fastening solution for demanding projects. Ideal for use in environments where both strength and aesthetic finish are critical. Material: SCM435 alloy steel Surface Treatment: Black Zinc Product Grade: 10.9 Standard No.: GB/T 70.3 - 2023 Manufacture country: China Instructions included: No