The Tolsen 54023 concrete nails are designed for secure fastening in hard cement walls, concrete surfaces, and dense soil. Each nail features a diameter of 3.8 mm and a length of 50 mm, providing a reliable grip for various construction tasks. To ensure they stay firmly in place, the shafts are engineered with vertical ribs that increase friction and prevent the nail from slipping out once driven. These fasteners are zinc-plated, which protects them against corrosion and makes them a practical choice for use in humid environments. They come in a 1 kg colored box, offering a convenient quantity for those working on masonry projects who need durable hardware that can withstand challenging conditions.