Lyte Poles PTAR Round Pole Top Adaptor BracketsLyte Poles PTAR Round Pole Top Adaptor Brackets Our PTAR brackets are fabricated from mild carbon steel pipe and tubing. Brackets are finished to match pole. Catalog Number Pole Size Height Drill Mount Options Fixtures Cutsheet PTAR 4RD DXX STD 4" Round 12" XX=D1 1 View XX=D2 2 at 90 or 180 XX=D3 3 at 90 or 120 XX=D4 4 PTAR 5RD DXX STD 5" Round 12" XX=D1 1 View XX=D2 2 at 90 or 180 XX=D3 3 at 90 or 120 XX=D4 4 PTAR 6RD DXX STD 6'' Round 12'' XX=D1 1