The all new smartButt :
Designed for those who prefer a traditional butt hinge to the now common side-rail hinges, but don’t want an ugly square knuckle jutting out from the back of their box, or the fuss of fitting a separate stop.
The new smartButt has an elegant, fully rounded knuckle allowing fitting in the traditional position – that is, with the centre of the pin in line with the back of your box and incorporates a hidden integral stop at 93˚so no additional stop needed, and no nasty square knuckle.
Beware! There are plenty of lesser stop butts on the market, but they all depend on unsightly square knuckles. This means that it’s not possible to fit them with the centre of the pin in line with the back of the box. Instead, the whole of the square knuckle has to protrude past the back of the box, which is ugly:
… and additionally this means that a wide gap opens up between the box and lid when open, like the image on the right below:
… which is also ugly!
The only option to avoid this wide gap and the unsightly protrusion with this style of hinge, is to perform a secondary machining operation to remove material above and below the knuckle to allow it to rotate:
Above is an example of what’s necessary to align the pin of a square-knuckled siderail hinge with the back of a box – you can imagine how ugly this looks with the much longer knuckle of a butt hinge. Understandably few go this route as it looks awful!
All these ugly, unsatisfactory compromises are now unnecessary with the new ground-breaking smartButt which has an elegant, fully rounded knuckle allowing fitting in the traditional position with the centre of the pin in line with the back of your box, and no extra machining or additional stop required.