This 5LB box of 4″ Spiral Nails from Canada Fastening Crop features a spiral shank and a bright finish. These nails are designed for use in construction and woodworking applications and are ideal for projects that require a strong and secure hold. The spiral shank provides increased holding power, while the bright finish provides a clean and polished look. The box contains 5 pounds of nails, making it a great choice for larger projects.