Our factory produces high-quality Hex Nut Long Coupling Nut with various grades like 4.8, 6.8, 8.8, 10.9, and 12.9. Our nuts come in standard sizes and are coated with Zinc Plain to protect them from corrosion. We manufacture these nuts to meet the global standards of ANSI and DIN6334. Our Long Coupling Nut is excellent for threaded rods and bolts and enables you to connect two bolts with longer lengths effortlessly. We are a wholesale price manufacturer, so you can expect durable, reliable, and cost-effective nuts that are perfect for construction and fastening applications. Try our products today and experience seamless, secure, and reliable connections!