• Concrete nails use hardened steel, often with longitudinal grooves along the length of the nail's shaft to help them penetrate very hard materials by spiraling as they are driven. These nails are thick and very strong. They are designed to be fastened into concrete, concrete block, and mortar joints.

Specifications:

1. Material-high carbon.

2. Finished-electro galvanized.

3. Steel wires -45% /55%.

4. Sharpness-diamond point.

5. Head-flat.

6. Shank- angular, spiral, round, smooth.