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Chinese bolt manufacturers are increasingly emphasizing quality assurance and compliance with international standards. Many manufacturers have obtained certifications such as ISO 9001, ISO 14001, and IATF 16949, demonstrating their commitment to quality management, environmental responsibility, and automotive industry standards. Additionally, Chinese bolt manufacturers often conduct rigorous testing and inspection processes to ensure the performance, durability, and safety of their products, meeting the stringent requirements of global markets.

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HEBEI YUETONG FASTENERS 1 4 40 threaded rod

The M5 x 20 screw specification indicates a nominal diameter of 5 millimeters and a thread length of 20 millimeters. The M denotes metric, which refers to the measurement system used for its size. This screw typically has a hexagonal head, allowing for easy grip and application of torque without slipping. Depending on the application, it can come with different head types such as pan, round, or countersunk, each serving a unique purpose in assembly processes.

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HEBEI YUETONG FASTENERS 1 4 40 threaded rod