Milkcan Outdoor on Instagram: "Installing your new @milkcanoutdoor pillar letterbox? It’s easier than you think! 🛠️ 1️⃣ Position your letterbox & mark the spot. 2️⃣ Drill a 10mm x 70mm hole into the concrete. 3️⃣ Align the letterbox over the hole. 4️⃣ Make sure the expansion bolt nut is loose. 5️⃣ Insert the bolt through the base into the concrete. 6️⃣ Tap it down—use a hammer if needed! 🔨 7️⃣ Tighten the nut with the tube spanner provided. And that’s it—your letterbox is secure and ready to g