Description Ram Tough Post Brackets are machined from quality metal and are chromated and powder coated to insure longevity. Designed to fit 3? to 8? diameter rails. Our fence post brackets will not rust from the ACQ in treated lumber. Perfect for use in any rail fencing project.Our post brackets are durable, re-useable, animal friendly, labor saving, and can be used for cross-bracketing. One person by themselves can build a fence using our brackets.