(Note: Measurements are outside max. dimensions unless stated otherwise).20th Century : Edwardian door knocker with button striking plate and choice of decorative brass nuts.Overall height 150mm. (6")Distance between studs 110mm. (4 5/16") centre to centre. DROPWidth 65mm. (2 9/16")Length 150mm. (6")(pivot to bottom of drop 120mm. (4 3/4").BACKPLATE Width 45mm. (1 3/4")Height 53mm. (2 1/16")STRIKER BUTTON37mm. (1 7/16") diam.Option : Octagonal capstan brass nuts.Width side to side 29mm. (1 1/8")Diam. 31mm. (1 3/16")Height 18mm. (11/16")Option : Round bell brass nuts.Diam 21mm. (13/16")Height 8mm. (5/16")Option : Square nuts with chamfered sides.12mm. (7/16") x 12mm. (7/16") x 5mm. (3/16") (variable).Supplied with 2 x No. 102mm. (4") x 6mm threaded rods. (Will need to be cut to length).Brass pivot pin.Rear of backplate has anti-slip spike to prevent spinning.