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 your screw heads.

Note: If the screw head is already stripped, have a look at our stripped-screw removal tutorial. The 5 Solutions to Mangled Screw Heads.

About four years ago, we met with an engineer and inventor who said he had designed a new type of screw head, one, he said, “that would revolutionize screws as we know them.” ...

Screw Head Jonathon Kambouris. This article originally appeared in the March 2014 issue of Popular Science. More deals, reviews, and buying guides.

Screw heads were initially all slotted. This isn’t 100 percent historically accurate, but when it comes to understanding why the set at the big box store contains the drivers it does, ...

Still, you need different screwdrivers for different tasks. It’s not only about the different type of screw heads–slotted, Phillips, Robertson, spline, Tory, or Allen, to name a few–and ...

Nearly all screws in a computer case require this cross-head screwdriver. Any Phillips #2 screwdriver will do—be it the plain, trusty Craftsman in your toolbox, the fancier ratcheting type with ...

Keep [a] decent multi-head screwdriver with a wide assortment of screwdriver heads in your car and you'll be prepared. Prepaid Calling Card – A calling card basically allows you to call anyone, ...