Woodscrews and Self-Tappers

Although originally limited to Slot Head (i.e. for Woodscrews) and Square Head (i.e. for Coach Screws), Screws and Bolts of almost all types are now available with a wide variety of head designs and methods of driving them.

The screws listed here are those with a point, rather than a fully parallel shank, and are used mainly for wood, plastics, sheet metal or similar and some building materials.

For details of screws more suitable for Engineering applications (e.g. Set Screws, Cap Screws and Grub Screws, see the page on Nuts, Bolts and Washers

Woodscrews

Countersunk Head Woodscrews	The most commonly used woodscrew used where the head has to finish flush with the surface. The traditional Slot Head screw is now largely superceded by Philips and Pozidrive head types
Round Head Woodscrews	B
Raised Countersunk Woodscrews	B