Once the nail head is formed, the nail is then driven through a series of rollers to create the shank. The shank of the nail is the part that penetrates the material being fastened. The rollers help to give the nail its characteristic shape and ensure uniformity in size and diameter.
Conclusion
2. Better Load Distribution The larger surface area of the umbrella head distributes the load over a greater area of the roofing material. This feature is especially beneficial when working with softer materials, such as felt or shingles, as it reduces the risk of tearing or pulling through the material.
Using 1 4 inch fiberglass rods offers numerous advantages