1/4" X 1-1/2" MH #316 SS Spike
The basic working principle of the Spike makes installation fast and simple. As the anchor is driven into the hole, the expansion mechanism is compressed and flexes to accommodate the size of the hole. The design of the Spike offers three different levels of compression, bottom, middle and top.
The hole for this Stainless Steel Spike is 1/4" in diameter and at least 2" deep.