S-93282A540 5/8"-18 x 1 1/4" ASTM A276 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments, thanks to 316 Stainless Steel construction, ideal for marine, chemical, and outdoor applications.
• Precise and reliable thread engagement with Class 2B fit and fine UNF threading, ensuring secure connections and reducing the risk of loosening under vibration.
• Full threading along the entire length provides maximum adjustability and flexibility in assembly, allowing for easy connection of two threaded rods or bolts.
• Compliance with ASTM A276 standards guarantees material integrity, mechanical properties, and consistent performance in demanding industrial settings.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence, making these nuts suitable for global supply chains and sensitive applications.
• Standard profile design offers easy installation with common tools, streamlining assembly processes and reducing labor time.
• Durable right-hand threading facilitates straightforward installation in standard rotational direction, enhancing efficiency in high-volume production lines.

Professional Applications & Engineering Value

Engineered for robust performance, this 316 Stainless Steel coupling nut addresses common industrial challenges such as corrosion-induced failure and thread wear. The fully threaded design and UNF fine thread configuration enable precise length adjustment and strong, vibration-resistant joints in structural frameworks, machinery, and fluid handling systems. By utilizing ASTM A276 compliant material, it ensures high tensile strength and longevity, even in aggressive environments like chemical processing or coastal installations. This nut is ideal for applications requiring reliable, long-term connections, such as in piping systems, assembly jigs, and extended fastener setups, where material purity and thread accuracy are critical to operational safety and efficiency.

Specification Summary & Compliance

This coupling nut features a 5/8"-18 UNF thread size with Class 2B thread fit for consistent dimensional accuracy, adhering to standardized inch measurements. It meets ASTM A276 specifications for material quality and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are present. The nut has an OD of 55/64" and length of 1 1/4", with right-hand thread direction and fine thread spacing, providing reliable performance in precision assemblies.