S-90496A068 2 1/2"-4 Hex Nuts

Key Features & Benefits at a Glance

• Cost-effective industrial strength with Grade 2 steel construction for reliable performance in general-purpose applications
• Easy manual installation and removal thanks to coarse UNC threading that resists cross-threading and speeds up assembly
• Space-saving thin profile (1 13/32" height) ideal for applications with limited clearance without compromising grip
• Secure, vibration-resistant fit ensured by Class 2B thread tolerance for consistent engagement with mating components
• High torque capability from the large 3 3/4" external hex drive that prevents tool slippage during tightening
• Environmental regulation compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Right-hand thread standardization for compatibility with common industrial equipment and fastener systems

Professional Applications & Engineering Value

This Grade 2 steel thin hex nut delivers exceptional value in heavy machinery, structural frameworks, and equipment assembly where coarse UNC threading provides superior resistance to vibration loosening. The thin hex nut profile addresses space constraints in compact assemblies while maintaining full thread engagement. Manufactured from quality steel with Class 2B thread fit, this fastener ensures consistent performance in high-vibration environments common in construction, agricultural equipment, and industrial manufacturing. The combination of external hex drive and substantial 3 3/4" width allows for high torque application without deformation, making it ideal for maintenance operations and OEM production lines requiring reliable, reusable fastening solutions.

Specification Summary & Compliance

This inch-system hex nut features precise 2 1/2"-4 UNC coarse threads with Class 2B thread fit tolerance for consistent mating with Class 2A external threads. Manufactured to standard industrial specifications for Grade 2 steel fasteners, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Dimensions include 3 3/4" width across flats and 1 13/32" height with right-hand thread direction for standard industrial applications.