S-94846A210 1/2"-20 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced strength-to-weight ratio with a thin profile design, providing reliable clamping force while minimizing material usage and assembly weight.
• Superior torque transmission and anti-loosening performance through the external hex drive design, ensuring secure fastening in high-vibration environments.
• Precision thread engagement with Class 2B fit and fine UNF threads, reducing the risk of cross-threading and ensuring consistent, reliable connections.
• Exceptional durability and corrosion resistance from Grade 5 steel construction, capable of withstanding heavy loads and harsh industrial conditions.
• Regulatory compliance assurance with RoHS 3 and REACH standards, making it suitable for global supply chains and environmentally conscious applications.
• Broad compatibility with ASME B18.2.2 specifications and inch-system components, ensuring seamless integration into existing assemblies.
• Optimized for space-constrained applications due to its reduced height (5/16"), allowing use where standard hex nuts cannot fit.

Professional Applications & Engineering Value

This Grade 5 thin hex nut is engineered to address critical challenges in heavy machinery, automotive, and structural assemblies where vibration resistance, space limitations, and high tensile strength are paramount. The fine UNF thread (1/2"-20) and Class 2B thread fit provide superior resistance to loosening under dynamic loads, while the external hex drive allows for high torque application with standard tools. Manufactured from high-grade steel, it ensures long-term reliability in demanding environments, reducing maintenance frequency and downtime. Compliance with ASME B18.2.2 guarantees dimensional consistency, making it an ideal choice for OEMs and MRO professionals seeking precision and regulatory adherence.

Specification Summary & Compliance

This fastener adheres to ASME B18.2.2 standards with a Class 2B thread fit and UNF fine thread (1/2"-20) in a right-hand direction. Dimensions include a 3/4" width and 5/16" height for a thin profile. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for international markets.