18-8 Stainless Steel Coupling Nuts

18-8 Stainless Steel Coupling Nuts are durable, corrosion-resistant fasteners designed to connect two threaded rods or bolts securely. Made from 18-8 stainless steel, which contains approximately 18% chromium and 8% nickel, these coupling nuts offer excellent resistance to rust, oxidation, and general wear, making them ideal for both indoor and outdoor applications.

These coupling nuts feature internal right-hand threads that allow for easy extension of threaded rods or the joining of bolts in structural, mechanical, and construction applications. Their high tensile strength ensures reliable load-bearing capacity, making them suitable for automotive, aerospace, industrial machinery, and marine environments.

With a hexagonal shape, they provide a secure grip for easy installation and tightening using a standard wrench. The 18-8 stainless steel composition ensures long-term durability, even in high-moisture or chemically exposed environments.