8, M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw with Hexagonal Head (V35156)

Gives a Mechanical interlock between construction material and the fixing, with no expansion stress Fixes close to the edge and is totally removable Fixes along the entire thread length to enable fixing through hollow sections No marking out required, fixes straight through your fixture Works in concrete, brick, wood, marble, block, stone and more, Weight: 1.0 pounds, Manufacturer: GENUINE THUNDERBOLT®