S-90977A195 1/2"-13 x 1 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength with Grade 5 classification ensures reliable performance in high-stress applications
• Superior corrosion resistance through zinc plating extends service life in harsh industrial environments
• Precision Class 2B thread fit guarantees smooth assembly and secure connections with mating components
• Full-length threading provides maximum engagement strength throughout the entire coupling length
• External hex drive design enables easy installation and removal with standard wrench tools
• Coarse 1/2"-13 UNC threading offers rapid assembly and reduced cross-threading risks
• Comprehensive compliance with RoHS 3 and REACH regulations ensures environmental and safety standards

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel coupling nut delivers exceptional engineering value in demanding industrial settings where extended fastener length is required. The fully threaded UNC coarse pattern with Class 2B fit ensures precise alignment and secure connections between threaded rods or studs in structural applications, mechanical assemblies, and heavy equipment. The zinc-plated steel construction provides critical corrosion protection while maintaining the high tensile strength necessary for vibration-resistant joints. The external hex drive configuration allows for straightforward installation in confined spaces, making it ideal for construction, manufacturing, and maintenance operations where reliability and durability are paramount.

Specification Summary & Compliance

This coupling nut features 1/2"-13 UNC coarse threading with Class 2B thread fit tolerance, manufactured to Grade 5 strength specifications. Dimensions include 3/4" width across flats and 1 3/4" length. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and substance restriction requirements for industrial applications.