General description The pack of 10 concrete screws with hexagonal head and collar Ø12x100 mm allows for direct fixing without the need for dowels in concrete or solid materials, minimizing the risk of bursting. These screws are particularly practical for fixing near edges and are designed to support heavy loads in various materials such as concrete, solid brick, cracked concrete, masonry, and solid concrete blocks. Technical specifications Screw diameter: Ø12 mm Length of the screw under the head (L1): 100 mm Total length of the screw (L): 109 mm Pre-drilling diameter: 10 mm Hexagon key size: 14 mm Maximum thickness of the part to be fixed: 10 mm Unit weight: 70.30 g Material: steel Color: silver Installation To install the screws, a pre-drilled hole in the concrete is required. It is recommended to clean the hole before inserting the screw. For fastening, you can use a power wrench, impact drill, or ratchet wrench. Please ensure the drill bit diameter matches the pre-drilling