MATERIAL: Aluminum HOLE SIZE: 7mm The same quality material and strength of the square, aluminum support plate, just a little easy to install-no indexing. The round aluminum support plates are available in 5/16" x 1-3/8" thread in quantities of 24, 96, 144 and 1,008.
Your preference and imagination is all that is needed to individualize your sled with colored aluminum support plates. Customize with 5/16" x 1-3/8" threaded in natural aluminum, green, red, blue, yellow, black, white or orange. Stand out in the crowd! Colored round Digger® support plates are offered in quantities of 48.