S-90499A825 1/2"-20 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 steel construction, ideal for high-stress industrial applications requiring maximum reliability.
• Precise thread engagement with Class 2B fit, ensuring smooth assembly and reducing the risk of cross-threading in critical assemblies.
• Superior vibration resistance from the UNF fine thread design, maintaining tightness in dynamic or high-vibration environments.
• Easy installation and removal with a standard external hex drive and 3/4" width, compatible with common wrenches for efficient maintenance.
• Long-term durability and corrosion resistance from high-grade steel, providing extended service life in demanding conditions.
• Compliance with stringent environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industrial sectors.
• Optimized for inch-system applications with right-hand threading, offering seamless integration into existing machinery and equipment.

Professional Applications & Engineering Value

This Grade 8 steel hex nut is engineered to address common challenges in heavy machinery, automotive, and construction sectors where vibration loosening and thread failure can compromise safety. The 1/2"-20 UNF fine thread and Class 2B fit provide superior clamping force and precise alignment, reducing the need for frequent retightening in high-torque applications. Made from robust steel, it withstands extreme loads and environmental stressors, while the external hex drive ensures quick, tool-friendly installation. Ideal for industrial assembly lines and precision equipment, this nut delivers consistent performance where reliability is non-negotiable.

Specification Summary & Compliance

This hex nut adheres to UNF thread standards with a Class 2B thread fit for consistent dimensional accuracy. It meets Grade 8 strength specifications, ensuring high tensile and proof load capabilities. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use. Dimensions include a 1/2"-20 thread size, 3/4" width, and 7/16" height, with right-hand threading for standard inch-system applications.