S-90268A029 1/4"-20 x 7/8" Coupling Nuts

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 Stainless Steel construction ensures long-term durability in harsh industrial environments
• External hex drive design provides superior torque application and easy installation with standard tools
• Class 2B thread fit guarantees precise mating with male threads for secure, vibration-resistant connections
• Fully threaded right-hand UNC coarse threading enables quick assembly and reliable performance under stress
• Standard coupling nut profile offers versatile joining capability for extended rod or bolt applications
• RoHS 3 and REACH compliance meets international environmental and safety standards for industrial use
• Optimized 3/8" width and 7/8" length dimensions provide balanced strength-to-weight ratio for space-constrained applications

Professional Applications & Engineering Value

This 1/4"-20 UNC coupling nut delivers exceptional engineering value in demanding industrial applications where extended connections between threaded rods or bolts are required. The 18-8 stainless steel material provides excellent corrosion resistance, making it ideal for marine, chemical processing, and outdoor applications where environmental factors would degrade inferior materials. The external hex drive style allows for high-torque installation without stripping, while the fully threaded design ensures maximum engagement strength throughout the entire 7/8" length. The UNC coarse thread pattern with Class 2B fit prevents cross-threading and maintains connection integrity in high-vibration environments common in machinery, construction, and automotive assemblies. These coupling nuts solve critical connection challenges by providing reliable, maintenance-free joining solutions that withstand thermal cycling and mechanical stress.

Specification Summary & Compliance

This coupling nut features precision 1/4"-20 UNC coarse threads with Class 2B thread fit per ASME/ANSI standards, ensuring dimensional accuracy and compatibility with standard male threaded components. The manufacturing adheres to strict quality controls for 3/8" width and 7/8" length tolerances. Compliance includes RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) regulations concerning chemical safety, making these fasteners suitable for global industrial applications requiring environmental responsibility.