The U Adjustable Standoff Bracket is designed to solve the issue of your rack being too deep or too shallow. This Adjustable Standoff Bracket can be set to a minimum depth of 3.5in to a maximum or 6in allowing for more mounting options than ever before! Constructed from 16-gauge steel, these mounts are durable, strong, and dependable. Two-point mounting: Perfect for use in two or four post racks, wall mount racks, and cabinets.