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This portion of the shaft is almost never totally round or totally smooth.This article originally appeared in Antique Trader magazine Learn about subscribing to Antique Trader magazine for just

This portion of the shaft is almost never totally round or totally smooth.This article originally appeared in Antique Trader magazine Learn about subscribing to Antique Trader magazine for just $1 per issue!The screw on the right is a modern gimlet screw, post 1848, with tapered shaft, even threads, pointed tip and centered slot. The handmade nails of the period derived much of their holding power from the ability to drive the nail through two surfaces and bend it over on the back side, i.e. But that solution would not work for securing the top on a chest of drawers or table top without either driving a nail through the top from above or clinching it on the top to hold it fast.The same problem arose while trying to affix a lock to the back side of a drawer.

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This portion of the shaft is almost never totally round or totally smooth.

This article originally appeared in Antique Trader magazine Learn about subscribing to Antique Trader magazine for just $1 per issue!

The screw on the right is a modern gimlet screw, post 1848, with tapered shaft, even threads, pointed tip and centered slot. The handmade nails of the period derived much of their holding power from the ability to drive the nail through two surfaces and bend it over on the back side, i.e. But that solution would not work for securing the top on a chest of drawers or table top without either driving a nail through the top from above or clinching it on the top to hold it fast.

per issue!The screw on the right is a modern gimlet screw, post 1848, with tapered shaft, even threads, pointed tip and centered slot. The handmade nails of the period derived much of their holding power from the ability to drive the nail through two surfaces and bend it over on the back side, i.e. But that solution would not work for securing the top on a chest of drawers or table top without either driving a nail through the top from above or clinching it on the top to hold it fast.The same problem arose while trying to affix a lock to the back side of a drawer.

In most cases the head is not perfectly round and is not centered perfectly on the shaft.

Lacking a cold hardened steel die with which to cut the thread, the craftsman had to cut it himself by hand.

This was usually done in laborious fashion with a file.

But the form used for the screw was a more or less round shallow depression into which the top of the shaft was hammered flat, producing a screw head.

The slot for the bladed screwdriver was cut with a hacksaw. We’ve got the column and the head but what about the ramp, also known as the worm or the threads?

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