GB/T 5785-2025 in English

This standard specifies the technical requirements for hex head screws with fine threads. It covers dimensions, material specifications, mechanical properties, and testing methods. The standard also includes marking and packaging guidelines. It is applicable to the production, inspection, and acceptance of hex head screws with fine threads. The standard is structured to ensure consistency and quality in the manufacturing process. It provides detailed specifications for various sizes and grades of screws. The standard aims to facilitate international trade by establishing uniform technical criteria. It is intended for use by manufacturers, suppliers, and users of hex head screws with fine threads.