These heavy-duty M6 x 50mm expansion bolts provide reliable anchoring solutions for concrete, brick, and masonry installations. The 12-piece set features durable sleeve anchors designed for maximum holding power in solid materials. Each bolt measures 0.23 inches in diameter and includes an integrated expansion mechanism that creates a secure grip when tightened. Perfect for construction projects and DIY installations requiring strong mechanical fastening, these anchors are ideal for mounting heavy fixtures, equipment, or structural components. The zinc-plated finish offers lasting durability, while the precision-engineered expansion sleeve ensures consistent performance. Installation requires a 10mm wrench and appropriately sized drill bit for the 0.39-0.47 inch punch holes. These versatile fasteners are suitable for both professional construction applications and demanding home improvement projects where reliable anchoring is essential.