High-Grade 12.9 Cylindrical Hex Socket Screws: M3/M4/M5/M6/M8 Three-Combination Bolt

Enhance the strength and durability of your projects with these premium cylindrical hex socket screws. Designed to offer exceptional tensile strength, these screws are perfect for high-stress applications. Available in M3, M4, M5, M6, and M8 sizes, this versatile set provides a trio of essential sizes to suit a variety of fastening needs. With their precise threading and superior construction, these screws ensure reliable performance and ease of use in any industrial or DIY project. Head shape: Cylindrical head Product Grade: A-level Standard No.: GB/T 70.1 Nail Type: Screws Manufacture country: China Instructions included: No