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. They feature a 4 fin steel spike to ensure a solid, permanent, wind resistant fit. 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/under sized post tolerance. The bolt secure system also allows for removal of the post at a later stage if required. The quick fit version features inverted fins inside the post holder section that will hold the post in a vice like grip. The system prevents against post rot and decay as it will hold the base of the post above ground level. Available in a red oxide powder coat to blend in with the fencing and provides medium rust protection or hot dip galvanised for maximum rust protection. Both options can be over painted if you wish. For 4ft fencing use a 600mm spike, for 6ft fencing use a 750mm spike.