Description 5/16"" x 7/8"" Diamond x 1/4"" CTRS. Open Area 55.000 Hole Diameter 0.88 Centers 1.31 Pattern Type Decorative PDF Document O005.pdf (57 KB) DWG Document O005.dwg (266.01 KB) DXF Document O005.dxf (3.33 MB) Image Image BIM No