Drive in post spikes are a quick and easy way to erect fencing and garden posts as they require no digging or concreting into place, saving time and money. The bolt secure version features 2 x 8mm carriage bolts that tighten and clamp the post firmly into the post holder section to prevent any post movement, as well as allowing for over- and/or under-sized post tolerance. Designed to allow for removal of the post at a later stage if required.