General description This set of 100 direct anchor screws is designed for concrete applications, featuring a conical countersunk head with a T30 star slot. These screws allow for direct fastening without the need for dowels, making them an essential component for assembling various parts by pressure. They are ideal for both building construction and routine home maintenance, providing a reliable and efficient solution for precise fastening. Technical specifications Screw diameter: 7.5 mm Screw length: 62 mm Unit weight: 10.90 g Material: galvanized steel Installation Requires a pre-drilled hole in the concrete for effective installation A suitable T-star screwdriver bit is necessary for screwing in the screws Usage Suitable for high-hardness elements such as windows, door frames, and carpentry Applications include construction, concrete slabs, carpentry, interior and exterior design, and renovation