S-90521A229 3/8"-24 ASME B18.2.2, ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior load distribution thanks to the extra wide profile, reducing stress concentrations and preventing joint failure in high-vibration environments
• Maximum torque resistance with the external hex drive and heavy-duty construction, ensuring secure fastening in demanding applications
• High-strength reliability from ASTM Grade 2H steel, providing consistent performance under heavy loads and extreme conditions
• Precise fine thread engagement with 3/8"-24 UNF Class 2B threads, offering excellent vibration resistance and reduced loosening risks
• Full regulatory compliance with RoHS 3 and REACH, ensuring safe use in global industrial markets without hazardous substances
• Interchangeable fit guarantee through strict adherence to ASME B18.2.2 and ASTM A194 standards, enabling seamless replacement and maintenance
• Enhanced durability from the right-hand thread design and robust steel material, delivering long service life in corrosive or high-stress settings

Professional Applications & Engineering Value

This heavy-duty hex nut is engineered to solve critical challenges in industrial assembly where fine thread reliability and high clamp load are paramount. The extra wide profile distributes forces evenly across mating surfaces, preventing distortion in soft materials or under dynamic loads. Manufactured from high-strength steel and meeting ASME B18.2.2 specifications, it ensures precise fit with 3/8"-24 UNF Class 2B threads for applications requiring vibration resistance, such as heavy machinery, automotive systems, and structural frameworks. The Grade 2H strength rating provides a dependable safety margin, while the external hex drive allows for high-torque installation with standard tools, reducing assembly time and improving maintenance efficiency in industrial environments.

Specification Summary & Compliance

This nut features precise Class 2B thread fit per UNF standards, with dimensions of 11/16" width and 23/64" height for consistent performance. It is manufactured in compliance with ASME B18.2.2 and ASTM A194 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use. The ASTM Grade 2H strength classification guarantees high tensile and proof load capabilities, suitable for critical applications requiring reliable fastening solutions.