Some screws are turned by hand, others lost their head, and one looks like a sea monster. It might be time you read up on ...

Learn your screw types and a whole lot more about the history of screws. For each screw drive type, from ancient Slot through to space-age Lox we present a quick view of the screw head, the drive ...

It's important to pick a good drive head when selecting a woodworking screw for two reasons: convenience and safety. Not all drive types can be driven down as easily -- using a slotted flat head ...

The world of screws is vast, though, and plenty of other types of screw heads and drives exist, like the Mortorq, the Pozidriv and the Bristol.

In 1908, Canadian Peter Robertson invented a square-head screw drive where the driver and the hole had a slight taper. ... Even though both use bits and could drive any type of screw, ...

Head type. Typical shoulder screws have modified fillister heads in which the head diameter is ... Head-fillet radii are not generally used to specify precision-grade shoulder screws. Drive types.

That question was actually easier to answer a few decades ago because now there are many more types and sizes of nails and screws available, and many more—and better—ways to drive them in.

It's important to pick a good drive head when selecting a woodworking screw for two reasons: convenience and safety. Not all drive types can be driven down as easily — using a slotted flat head ...