Ideal For Many More Things You Can Use This Fastener Into Various Places– Be It Concrete, Solid, Perforated Or Hollow Bricks, Natural Stone, Marble Etc.Screw Diameter Approx 16Mm, Rod Diameter 12Mm, Hook Outer Diameter 5 Cm, Inner Diameter 3 Cm, Total Length Of Fastener 6 Inchitem Swing Anchor Fastener / Hook For Swing, 12 Mm, 1 Piece.Need To Use 16Mm Diameter Drill Bit For Drilling Holes, The Drilling Depth Should Be More Than Or Equal To 9 Cmload Bearing Capacity 250 Kg, Approx, But Must Insure That Capacity Of Wall Before You Use It The Load.Sunshine Global Source Brass Swing Anchor Fasteners Hook For Hanging Swing, 12 Mm, Gold Metal