Stainless Steel wedge anchors prove to be an excellent fastener for firmly securing fixtures into concrete. Determining the correct length and diameter of wedge anchor to use is key. To determine the length, you must consider three main factors, the first of which being the thickness of the object you are fastening. Using that thickness, then account for the space that the nut and washer require + the minimum embedment that should be used based on the diameter of the anchor. This minimum embedment is the depth that the anchor must be installed at after the expansion of the concrete. The diameter of the wedge anchor must be less than that of the hole it is being used in. For example, if you have a 7/8” hole, the anchor will be usually slightly less than 7/8”. Make sure to adhere by engineering specifications if they are available.