S-90212A811 1 1/4"-8 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with durable Blue PTFE coating that protects against harsh industrial environments and extends service life
• Enhanced torque application thanks to the extra wide 2" hex profile providing superior grip and reducing tool slippage during installation
• High-load capacity with ASTM Grade 2H strength rating ensuring reliable performance under heavy mechanical stress
• Precise thread engagement with Class 2B fine thread fit offering vibration resistance and secure fastening in critical assemblies
• Industry-standard compliance meeting ASTM A194 specifications for consistent quality and material integrity
• Optimized for fine-thread applications with UN 1 1/4"-8 right-hand threads providing better tension control in precision equipment
• Reduced maintenance requirements through the combination of PTFE coating's lubricity and steel's structural durability

Professional Applications & Engineering Value

This extra wide hex nut delivers exceptional engineering value in demanding industrial applications where vibration resistance, corrosion protection, and high clamping force are critical. The Blue PTFE-coated steel construction provides dual advantages: the steel core maintains ASTM Grade 2H strength for heavy load-bearing requirements, while the PTFE coating acts as both corrosion barrier and dry lubricant, reducing galling and enabling precise torque application. The Class 2B fine thread fit ensures secure fastening in high-vibration environments like heavy machinery, structural steel connections, and industrial equipment where UN fine threads offer superior tension control compared to coarse threads. The 2" extra wide profile allows for higher torque values without damaging the fastener, making it ideal for maintenance-critical applications where reliability cannot be compromised.

Specification Summary & Compliance

This hex nut features 1 1/4"-8 UN fine threads with Class 2B thread fit for precision engagement and meets ASTM A194 specifications for material quality. The fastener maintains ASTM Grade 2H strength classification and is manufactured with right-hand thread direction. With dimensions of 2" width and 1 7/32" height, this industrial nut complies with standard inch measurement system requirements for consistent performance across compatible applications.