This steel wall anchor set includes 20 pieces of 42mm length devices, specifically designed for manual nail gun riveting. The round nails have a diameter of 10.5mm and are made of high-quality steel, ensuring sturdiness and durability. The head diameter is 7.3mm, and the gauge measures 42mm x 10.5mm x 7.3mm. This set of anchors is perfect for DIY enthusiasts and professionals alike, who want to securely fasten objects to the wall. The wire slotting device makes it easy to insert the nails into the wall, and the material used in the product ensures that it will last a long time.