S-94485A112 1 1/4"-8 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution thanks to the extra wide 2" profile, reducing surface pressure and preventing material damage
• Superior vibration resistance achieved through UN fine (8 TPI) threads that maintain tighter, more secure connections in dynamic applications
• High-strength performance with ASTM Grade 7 certification, ensuring reliable operation under extreme mechanical stress
• Precision thread engagement with Class 2B fit providing consistent, smooth assembly and reduced risk of cross-threading
• Enhanced durability from ASTM A194 compliant steel construction, offering excellent corrosion resistance and long service life
• Optimized torque transmission via the external hex drive design, allowing for efficient installation with standard tools
• Reliable right-hand threading ensuring compatibility with standard components and straightforward assembly processes

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these ASTM Grade 7 hex nuts deliver critical performance where failure is not an option. The extra wide profile (2" width) distributes clamping force over a larger area, preventing distortion in soft materials and maintaining joint integrity in structural steel connections. The UN fine thread configuration (1 1/4"-8) provides superior resistance to loosening under vibration, making these steel nuts ideal for machinery, construction equipment, and transportation systems subjected to dynamic loads. With Class 2B thread fit precision, installation becomes more efficient while minimizing the risk of galling or seizing, reducing maintenance downtime and replacement costs in demanding environments.

Specification Summary & Compliance

This heavy-duty hex nut features precise 1 1/4"-8 UN fine threads with Class 2B thread fit tolerances for consistent engagement. Manufactured to ASTM A194 specifications for heavy hex nuts and meeting ASTM Grade 7 strength requirements, these fasteners comply with industry standards for dimensional accuracy and mechanical properties. The right-hand thread direction follows conventional assembly practices, while the 2" width and 1 7/32" height dimensions ensure proper wrench clearance and sufficient thread engagement for secure connections.