The product is a pack of 50 Steel Nylon Insert Hex Black Lock Nuts in size # 8-32. These nuts are made of Stainless Steel 18-8 with a Black Oxide finish, providing durability and corrosion resistance. The External Hex drive style makes them easy to install and secure, while the nylon insert ensures a snug fit. Manufactured in China, these nuts are ideal for various industrial and business applications requiring reliable fastening solutions. I ship out FAST!!!