Allgrip All Purpose Masonry Screw 7.5 x 80mm, Yellow, supplied in a pack of 100.
Masonry screws cut their own thread into a pre-drilled hole in brick, block and concrete with no plug required. Used for fixing frames, battens, brackets and metalwork where a fast, removable fixing is needed.
Drill with the recommended pilot size, clear the dust and drive with a socket or driver bit.