Freedom Hidden Countertop Bracket (18x18, Raw Steel) Sizes - 8x8 to 20x30 Finishes - Black, White and Steel Material Thickness - 1/4" to 1/2" Holes - 1/4" Straight Holes in down flange only Carry Capacity - 375 pounds per bracket <span class="a-text-bold">Sizes:</span>8&#034; to 20&#034; to support overhangs and shelving ranging from 10&#034; to 24&#034; <span class="a-text-bold">Finishes:</span>UnfinishedSteel, Black or White Powdercoat <span class="a-text-bold">Holes:</span>1/4&#034; (8&#034;-18&#034;) to 1/2&#034; (20&#034;) Straight Holes in Down Flange Only <span class="a-text-bold">Installation Kit:</span>Standard Brace Fastener Kit - SKU 39972