The product is a set of 1/4"-20 Grade 2 steel square nuts with a zinc clear finish, manufactured by Stelfast Inc in the United States. These nuts feature a coarse thread size and an external hex drive style, making them easy to install and secure. Perfect for various industrial and fastening applications, these nuts are durable and reliable due to their high-quality steel construction and precise measurement in inches. Ideal for businesses and professionals in need of reliable fastener nuts.