S-94450A220 1/4"-28 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Space-saving thin profile (5/32" height) allows for use in compact assemblies where standard nuts won't fit.
• Reliable left-hand thread engagement prevents loosening in applications with counter-clockwise rotational forces.
• Precise UNF fine threading (1/4"-28) ensures a tight, secure fit and improved vibration resistance compared to coarse threads.
• Consistent Class 2B thread fit guarantees easy assembly and interchangeability with mating components.
• Convenient external hex drive (7/16" width) provides excellent tool grip for fast and secure installation.
• Environmental compliance assurance meets RoHS 3 and REACH standards for safe, regulated use in industrial settings.

Professional Applications & Engineering Value

This 1/4"-28 UNF thin hex nut with left-hand thread is engineered to solve critical challenges in industrial assemblies. Its 18-8 stainless steel composition offers exceptional resistance to rust and corrosion, making it perfect for machinery, marine equipment, and outdoor applications exposed to moisture and chemicals. The thin hex nut profile is specifically designed for space-constrained environments, such as electronic enclosures or precision instruments, where every millimeter counts. The left-hand threading provides a secure fastening solution for components that experience reverse rotational forces, preventing accidental loosening and enhancing operational safety. Combined with the UNF fine thread and Class 2B fit, this nut delivers reliable performance in vibration-prone systems, ensuring long-term joint integrity without frequent maintenance.

Specification Summary & Compliance

This hex nut features a 1/4"-28 UNF fine thread with Class 2B thread fit for consistent dimensional accuracy and easy assembly. The external hex drive measures 7/16" in width with a thin profile height of 5/32". Manufactured to inch system standards, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial fasteners.