8mm x 75mm - Anchor Thunder Concrete Bolts - Countersunk Head - 6mm Drill Size - Pack of 10

These 75mm concrete bolts have a drill size of 6mm. They feature a countersunk head, are made from high quality steel and boast a bright zinc plated finish. Concrete bolts are a heavy-duty fixing that can be used to fix into a variety of harder substrates such as masonry, stone and as their name suggests, concrete. Unlike traditional fixings, these bolts can be screwed within a very short distance of the edge of the substrate due to the fact that they have no expansion.