As my master saltbox slowly became a reality, sporting its lid, bottom, and half-blind dovetailed drawer, I took the time to apply a walnut-ish dye to darken things up. I think the darker color helps the carving to standout.
After a few coats of shellac, it was time to install the hinges. Having located and bored holes before finishing, I positioned the butterfly hinges and drove cut-nails partway in.
From the back-side, I then bent the nails to ninety-degree angles.
I then drove the nails in the rest of the way, and further bent them, embedding the points into the wood.
Using a small sledgehammer as an anvil, I flattened the nails, even more, creating what looks like staples on the back-side.
In doing so, the nails are rendered unusable for any other purpose. They would be difficult to remove and even more difficult to use again elsewhere. As you can guess, proper test fitting is essential. Clinching nails was a common practice on board and batten and multi-layered doors. A Nail bent in this fashion is commonly called dead, thus the phrase, dead as a doornail.