From the Anvil Beeswax Butt Hinge 3inch (Pair)
These butt hinges can be used in conjunction with hinge fronts internally but must not be used outside.
The minimum door thickness this hinge will fit is 30mm.
Sold in pairs and supplied with bees waxed fixing screws.
The maintenance wax will restore the finish and afford protection. If surface rust does occur rub with wire wool and apply maintenance wax with a rag or brush. Inevitably when two areas of metal come into contact with each other an abrasive action is enacted, and sooner or later the wax surfaces are lost by the constant rubbing action. This is unavoidable during the operational activity of the article, so where obvious abrasive areas of moving parts are visible an occasional light oiling is recommended.