These premium M6 hex coupling nuts are precision-engineered from high-grade 304 stainless steel, offering exceptional durability. Each nut features a 1mm pitch thread and measures 30mm in length, making them ideal for various mechanical and construction applications. The hex design allows for easy installation and removal using standard tools. This pack includes 4 coupling nuts, perfect for projects requiring secure connections between threaded rods or bolts. The robust construction ensures reliable performance in both indoor and outdoor settings. These coupling nuts maintain their structural integrity across a wide range of temperatures and conditions, making them suitable for industrial, automotive, and general assembly uses. Their clean, professional finish complements any installation while providing the strength and reliability needed for critical connections.