S-98694A221 1 1/4"-7 Square Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity thanks to Grade 5 steel construction, providing reliable performance in demanding applications.
• Superior resistance to loosening under vibration with coarse UNC threading, ensuring long-term joint integrity.
• Precise and reliable thread engagement with Class 2B fit, minimizing the risk of cross-threading and simplifying installation.
• Easy installation and removal with standard tools due to the external square drive design, reducing assembly time.
• Enhanced durability and corrosion resistance from the robust steel material, extending the service life of your assemblies.
• Confident global sourcing compliance by meeting RoHS 3 and REACH environmental standards for industrial use.
• Optimal wrenching surface with a 1 7/8" width, providing a secure grip for high-torque applications.

Professional Applications & Engineering Value

This Grade 5 steel square nut is engineered to address critical challenges in heavy machinery, structural frameworks, and industrial equipment assembly. Its 1 1/4"-7 UNC coarse thread and Class 2B thread fit ensure rapid installation and high vibration resistance, preventing joint failure in dynamic environments. The external square drive allows for secure tool engagement, even in confined spaces, reducing the risk of rounding and tool slippage. Manufactured from high-strength steel, this nut maintains integrity under significant tensile and shear stresses, making it ideal for construction, automotive, and manufacturing sectors where reliability is non-negotiable. Its compliance with RoHS and REACH standards further supports sustainable and safe industrial operations.

Specification Summary & Compliance

This square nut adheres to UNC thread standards with a Class 2B thread fit for consistent dimensional accuracy. It is manufactured to meet Grade 5 strength requirements, ensuring high mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial markets without hazardous substances.