S-90326A227 M45 DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced space-saving design with a thin profile (22.5mm height) for applications where clearance is limited, without compromising on strength.
• Superior thread engagement and vibration resistance due to the M45x3mm fine pitch thread, ensuring a secure and reliable connection in dynamic environments.
• Guaranteed dimensional accuracy and interchangeability from compliance with DIN 439B and ISO 4035 international standards.
• Reliable performance for general engineering applications backed by the Class 04 strength grade and robust steel construction.
• Precise and consistent thread fit with a Class 6H tolerance, facilitating easier assembly and reducing the risk of cross-threading.
• Broad industrial compatibility with a standard 70mm width and external hex drive, allowing for use with common tools.
• Safe for use in regulated environments as it is fully compliant with REACH and RoHS 3 environmental directives.

Professional Applications & Engineering Value

This M45 thin hex nut is engineered to address critical challenges in machinery assembly, structural frameworks, and heavy-duty equipment. Its steel construction provides the necessary durability to withstand high tensile and shear forces, while the fine metric thread (3mm pitch) offers superior resistance to loosening under vibration—a common failure point in industrial settings. The thin profile (DIN 439B) is particularly valuable in compact designs, such as in automotive sub-assemblies or conveyor systems, where space optimization is paramount. By conforming to ISO 4035, it ensures global part interchangeability, reducing downtime and simplifying the procurement process for maintenance and OEM operations.

Specification Summary & Compliance

This nut features a Class 6H thread fit per ISO standards, ensuring precise dimensional accuracy. It is manufactured to meet the geometric specifications of DIN 439B for thin hex nuts and ISO 4035 for metric hex nuts. The fastener is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free from hazardous substances, making it suitable for use in environmentally conscious and regulated industrial applications.