Our factory manufactures high-strength hex nuts with a range of grades: 4.8, 6.8, 8.8, 10.9, and 12.9, in both standard size and fine-thread options. Our zinc-plated plain connecting hex long coupling nuts are made with precision using cutting-edge technology. We adhere to ANSI and DIN6334 standards and offer both wholesale and customized solutions for our clients. Our products are of top quality and available at the most reasonable wholesale prices, without compromising on the quality of our products. Choose us for reliable and durable hex nuts that are trusted by industries worldwide.