S-90983A217 1/2"-13 x 1 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength with Grade 8 classification ensures reliable performance in high-stress applications and prevents premature failure
• Superior corrosion resistance through zinc plating extends service life in demanding industrial environments and reduces maintenance needs
• Optimized torque transmission with external hex drive design allows for secure installation using standard tools and prevents stripping
• Precise thread engagement with Class 2B fit and UNC coarse threading enables quick assembly and maintains consistent clamping force
• Full-length threading capability provides maximum connection flexibility for joining long rods or studs of varying lengths
• Heavy-duty construction with 1 3/4" length and 3/4" width offers substantial engagement surface for distributing load stresses effectively
• Regulatory compliance assurance with RoHS 3 and REACH standards guarantees environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This Grade 8 coupling nut delivers critical engineering solutions for industrial assembly challenges where high-strength connections are paramount. The zinc-plated steel construction combats corrosion in manufacturing facilities, construction sites, and outdoor equipment applications, significantly extending maintenance intervals. The 1/2"-13 UNC coarse threading with Class 2B fit ensures rapid installation while maintaining vibration resistance in machinery, structural frameworks, and heavy equipment. The fully threaded design accommodates variable material thicknesses, making it ideal for joining threaded rods in scaffolding, conveyor systems, and industrial piping. The external hex drive facilitates high-torque installation using common wrenches, streamlining assembly processes in time-sensitive industrial operations.

Specification Summary & Compliance

This heavy-duty coupling nut features 1/2"-13 UNC coarse threading with Class 2B thread fit per ASME standards, ensuring precise dimensional accuracy and reliable performance. Manufactured from high-strength steel with zinc plating surface treatment, the fastener meets Grade 8 strength requirements for demanding applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to international environmental and safety standards for industrial components.