Combination head screws are designed to accept, as the name suggests, a variety of screwdriver heads. If you have a good multi-bit screwdriver , you'll have plenty to choose from.

Pozidriv screw heads can be identified by the extra notch marks. There are a staggering number of drive types out there, many of which don’t have the problems the Phillips head has.

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.” ...

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

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

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, ...

A key problem in screwing is how to avoid cam-outs, in which the screwdriver loses its grip on the screw head and slips. So Mironov and co are particularly interested in how humans avoid this.

Also, it’s possible that the screws were over-tightened during installation, which can damage the head of the screw. All this adds up to screws that are very tough to remove.