What is EN ISO 10664:2018?

EN ISO 10664:2018, also known as the International Organization for Standardization (ISO) standard for Hexalobular socket head cap screws, is a technical specification that provides guidelines and requirements for the design, dimensions, and performance characteristics of these specific types of fasteners.

Design and Dimensions

The standard specifies the design features of Hexalobular socket head cap screws, including the shape and dimensions of the head, the diameter and length of the shank, and the thread size and pitch. These specifications ensure compatibility and interchangeability of these screws with corresponding components and fittings.

EN ISO 10664:2018 also defines the maximum and minimum values for key dimensions, such as the head height, head diameter, shank length, and thread length. This allows manufacturers and users to ensure that the screws meet the necessary requirements for their intended applications.

Performance Characteristics

In addition to design and dimension requirements, the standard also addresses the performance characteristics of Hexalobular socket head cap screws. It includes specifications for torque-tension relationship, hardness, and surface finish.

The torque-tension relationship specifies the maximum tightening torque required to achieve a certain clamping force. This ensures that the screws can securely hold parts together without being over-tightened or under-tightened.

Furthermore, the standard sets requirements for the hardness of the screws, ensuring that they have the necessary strength and durability to withstand various operating conditions. The specified hardness values help prevent deformation or failure of the screws during installation or use.

Lastly, EN ISO 10664:2018 defines the acceptable surface finish for Hexalobular socket head cap screws. This ensures that the screws have a smooth surface that is free from any defects, such as burrs or roughness, which could potentially affect their performance or cause damage to mating parts.

Conclusion

EN ISO 10664:2018 is a technical standard that establishes guidelines and requirements for the design, dimensions, and performance characteristics of Hexalobular socket head cap screws. Adhering to this standard ensures compatibility, reliability, and quality of these fasteners in various applications.

Manufacturers, engineers, and users can rely on EN ISO 10664:2018 to produce and select Hexalobular socket head cap screws that meet the necessary criteria for safety, functionality, and performance.