Anchor baskets are required when anchoring into a poured foundation. We make anchor baskets which serve several purposes, to make it easy to set a pole onto the proper bolts. The anchor baskets use a plywood template in order to hold the correct Bolt Circle Diameter (BCD), and the correct bolt and thread projection (how far above the concrete the bolts stick out). This insures that the washers and nuts fit onto the J-Bolts with enough room to tighten them properly, but not too far, so that the bolt covers fit onto the base.