The product is a pack of 5 stainless steel 18-8 coupling nuts with a hex extension. These nuts have a thread size of 1/4-20 and are manufactured in Taiwan. Designed for industrial use, these high-quality nuts are durable and reliable for a variety of fastening applications. Perfect for businesses in need of durable and long-lasting fastener nuts, this product offers a convenient and efficient solution for securing components in machinery, equipment, and more.