Adjustable Bolt Down Post Support SPECIFICATIONS: SIZE measuring 110mm x 110mm x 250mm / 4.33 x 4.33 x 9.84 making them perfect for a wide range of applications Adjustable Bolt Bolt Down Pergola Posts U Type U Type Post Pergola Foot Bolt Down Post Support Coach Screws Number of Holes 8 x 11mm & 8 x 5mm 8 holes 10mm 6 holes 11mm 14 x 11mm and 4 x 5mm 6 holes 11mm n/a Galvanized steel Joining Plate Shelf Bracket Joist Hanger Angle Brackets Corner Brackets Wood Screws Size 140 x 55 x 2mm 300 x 200mm x 4mm 130 x 30 x 70mm x 2.0mm 70 x 70 x 55 x 1.5mm 50 x 50 x 35 x 2mm 4mm x 40mm Number of Holes 12 x 5mm & 2 x 11mm 3 x 9mm & 3 x 5.5mm 32 x 5mm & 4 x 11mm 16 x 5mm & 2 x 11mm 8 x 5mm & 2 x 11mm n/a Galvanized steel.