Countersunk nylon nail anchors designed for secure fastening in masonry, concrete, and brick applications. The 5mm diameter and 40mm length provide reliable load-bearing capacity for medium-duty installations. Simply drive the nail directly into the pre-drilled hole—the nylon expands as the nail enters, creating a tight grip that resists vibration and movement. Ideal for hanging fixtures, shelving, and electrical installations where corrosion resistance and durability are essential. Weather-resistant construction ensures long-term performance in both interior and exterior environments.