S-93839A040 1 1/4"-7 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Maximum Load Capacity: Grade 8 classification ensures superior tensile strength for heavy-duty applications where failure is not an option
• Enhanced Corrosion Resistance: Zinc yellow-chromate plating provides excellent protection against rust and environmental degradation in harsh industrial settings
• Space-Saving Design: Thin profile allows installation in confined spaces while maintaining full strength capabilities
• Reliable Thread Engagement: UNC coarse threading with Class 2B fit ensures smooth assembly and consistent clamping force distribution
• Standardized Compatibility: Manufactured to ASME B18.2.2 specifications guarantees interchangeability and reliable performance across industrial systems
• Optimized Tool Access: External hex drive design provides superior wrenching surface for high-torque applications and easy installation
• Dimensional Precision: Exact 1 1/4"-7 thread sizing maintains consistent performance in inch-based assembly systems

Professional Applications & Engineering Value

This Grade 8 hex nut delivers exceptional engineering value in demanding industrial environments where vibration resistance and structural integrity are paramount. The zinc yellow-chromate-plated steel construction addresses corrosion concerns in manufacturing facilities, outdoor equipment, and marine applications, significantly extending service life. The UNC coarse threading (1 1/4"-7) combined with Class 2B thread fit ensures rapid assembly without cross-threading risks, while the thin profile design solves space constraints in complex machinery and structural frameworks. Engineered to ASME B18.2.2 standards, this external hex drive nut provides reliable performance in heavy machinery, construction equipment, and industrial assembly lines where consistent clamping force and durability under extreme loads are critical requirements.

Specification Summary & Compliance

This heavy-duty fastener features precise Class 2B thread fit tolerance for optimal engagement with mating components. Manufactured in compliance with ASME B18.2.2 specifications, ensuring dimensional accuracy and performance reliability. The UNC coarse thread (1 1/4"-7) follows standardized inch system measurements with right-hand thread direction. The component meets industry standards for Grade 8 strength classification and incorporates zinc yellow-chromate plating that complies with RoHS and REACH environmental regulations for industrial use.