The description says it will fit frames 2" to 3" thick but that is not the case. The included screws are actually 4 1/4" long and the threads are only 1 3/8" too short to fit snugly in a 2" per inch frame. In fact, this works from a 3" to a 4" frame. It's not a big deal to get shorter zinc plated bolts, but the extra cost and hassle/effort. The plating feels solid and the welds fit well, so overall this is a well made one for the price Product.