Yigu High-Strength Black Nickel Hex Socket Screw, M1.6-M4, Knurled Cup Head Bolt, 12.9 Grade.

Introducing a premium fastening solution designed for precision and reliability, this high-strength hex socket screw is constructed from durable black nickel. Available in sizes M1.6 to M4, it features a knurled cup head for enhanced grip and torque application. With a grade 12.9 rating, it ensures exceptional tensile strength and performance in demanding applications, making it ideal for both industrial and personal projects requiring robust and dependable fasteners. Surface Treatment: Black Nickel Material Grade: Carbon Steel Product Grade: 12.9 Standard No.: DIN912 Nail Type: Screws Manufacture country: China Instructions included: No