(Note: Measurements are outside max. dimensions unless stated otherwise).18th Century : Backflap hinge.Option : Six 1/2" No. 6 slotted countersunk colour-matched brass screws.Length 58mm. (2 5/16") (open).Width 37mm. (1 7/16")Thickness (variable) 2.5mm. (1/8")Opens 240 degrees. Steel pin, 4 knuckles.Priced individually (not pair).