S-90983A240 1"-8 x 2 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Grade 8 classification, ensuring high tensile performance for demanding industrial applications.
• Superior corrosion resistance provided by zinc-plated steel, extending service life in harsh environments.
• Optimal torque transmission through the external hex drive design, allowing for secure installation with standard tools.
• Precise and secure thread engagement with 1"-8 UNC coarse threading and Class 2B fit, reducing cross-threading risks.
• Versatile coupling capability as a fully threaded, standard profile nut for connecting rods or studs in extended assemblies.
• Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe and sustainable use.
• Dimensional consistency with 2 3/4" length and 1 1/2" width, ensuring compatibility and ease of integration.

Professional Applications & Engineering Value

This Grade 8 zinc-plated steel coupling nut is engineered to address critical challenges in heavy-duty mechanical and structural assemblies. Its robust UNC coarse threading and Class 2B thread fit provide reliable connections that resist loosening under vibration and high loads, common in construction, automotive, and machinery sectors. The external hex drive facilitates efficient installation with standard wrenches, reducing assembly time while ensuring consistent clamping force. Made from high-strength steel with a protective zinc coating, it combats corrosion in outdoor or corrosive industrial settings, prolonging equipment lifespan. Ideal for extending threaded rods or joining components, this coupling nut delivers precision and durability, minimizing maintenance needs and enhancing overall system integrity.

Specification Summary & Compliance

This coupling nut adheres to UNC thread standards with a Class 2B thread fit for consistent dimensional accuracy. It is manufactured from zinc-plated steel and meets Grade 8 strength requirements, ensuring high mechanical performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports environmental safety and regulatory adherence in industrial applications.