What is EN ISO 4762:2021

EN ISO 4762:2021 is an international standard that specifies the characteristics of hexagon socket head cap screws made of steel, stainless steel, and non-ferrous metals. The standard outlines the dimensions, tolerances, and mechanical properties of these fasteners, which are widely used in various industries for their versatility and reliability.

Dimensional Requirements

According to EN ISO 4762:2021, hexagon socket head cap screws are available in various sizes, ranging from M1.6 to M64. The standard provides detailed specifications regarding the thread diameter, pitch, length, bolt head height, and wrenching configurations. These uniform standards ensure compatibility and interchangeability of screws across different applications and manufacturers.

Mechanical Properties

The mechanical properties of hexagon socket head cap screws are crucial to their performance under various loading conditions. EN ISO 4762:2021 defines the required hardness, tensile strength, yield strength, elongation, and impact resistance of these fasteners. These specifications ensure the screws can withstand high loads without deformation or failure, providing reliable and secure connections in critical applications.

Application and Advantages

Hexagon socket head cap screws specified by EN ISO 4762:2021 find extensive use in a wide range of industries, including automotive, aerospace, machinery, and construction. Their advantages lie in their compact design, ease of installation, high strength, and corrosion resistance. Additionally, the standard ensures traceability through unique identification markings, making it easier to track and trace the origin and quality of the fasteners.