Soss Concealed Hinges Patent number: 1x1984092 and 2x2021702 These have been used but they were never installed right. They are in excellent condition, no obvious signs of wear and tear and are good as new. The one with 4 screw holes per side was used as the middle hinge for balance and even weight distribution where the other 2 have 2 screw holes per side. Each hinge opens 180 degrees one way, no fixing screws included. For door thickness 27-32mm. The mechanism of the hinge is absolutely brilliant. With the right installation, it is awesome. They are heavy duty so collection is recommended. Trade price is £15.43 per hinge brand new.
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