S-91845A145 1/2"-20 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Precise thread engagement with Class 2B fit, ensuring smooth assembly and reduced risk of cross-threading in fine-thread applications.
- Excellent mechanical strength from the standard hex profile and external hex drive, providing secure fastening under high torque.
- Wide compatibility with 1/2"-20 UNF fine threads, commonly used in automotive, machinery, and precision equipment.
- Environmental compliance meeting RoHS 3 and REACH standards, safe for regulated industries and global supply chains.
- Dimensional accuracy with consistent 3/4" width and 7/16" height, enabling uniform performance in repetitive assemblies.
- Right-hand threading for standard installation, simplifying maintenance and reducing assembly time.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 1/2"-20 UNF hex nut leverages 18-8 stainless steel to combat corrosion and maintain integrity in moist or chemical-exposed environments. The fine thread spacing and Class 2B thread fit deliver tighter tolerances, minimizing vibration-induced loosening in machinery, automotive systems, and aerospace components. Its external hex drive allows for high-torque application with standard tools, streamlining assembly lines. By addressing common issues like galling and thread wear, this nut ensures reliable performance in precision fastening applications, reducing downtime and maintenance costs.
Specification Summary & Compliance
This hex nut adheres to UNF thread standards with a Class 2B thread fit for consistent dimensional accuracy. Manufactured to inch system specifications, it features a right-hand thread direction and fine thread spacing. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for industrial safety requirements.
