Drive in post spike, bolt secure, 100 x 600mmDrive 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.