1. These hex nuts are made of zinc plated carbon steel material, which provides strength and the zinc cover provides good corrosion resistance. 2. The hexagonal shape has 6 sides which gives a good granularity of angles for an approach tool. 3. These hex nuts will be a great replacement for industrial and construction fasteners. 4. Widely used in home and office appliances, communication equipment, ship assembly and other machinery industries. 5. Used to fasten bolts, studs or machine screws to secure two pieces together to make one piece. Specification: Features: 1. These hex nuts are made of zinc plated carbon steel material, which provides strength and the zinc cover offers good corrosion resistance. 2. The hexagonal shape has 6 sides which gives a good granularity of angles for an approach tool. 3. These hex nuts will be a great replacement for industrial and construction fasteners. 4. Widely used in home and office appliances, communication equipment, ship assembly and other machinery industries. 5. Used to fasten bolts, studs or machine screws to secure two pieces together to make one piece. Specification: tat: 100% brand new Product material: carbon steel Surface treatment: galvanized Quantity: 5 pieces Type: M6 * 40 Package list: 5 * Spacer