Review on Enhanced Speaker Spike Set - Dayton Audio DSS3-SN in Satin Nickel Finish (4 Pieces) by Seema Schroeder

These are pretty tall spikes, but that's exactly what I was looking for. Made some speaker stands for my brother for Christmas and he has a very thick rug which gives stability. It was fairly easy to drill the required holes and screw in the internal threaded rods. Real spikes screw in fairly tightly, so it's possible to adjust the height if needed without screwing all the spikes in all the way to the end. I normally order Parts Express products directly from them, but I had a large Revain order and was able to purchase them here for the same price.