A thumbscrew is a type of screw drive with either a tall head and ridged or
knurled ... A Phillips screw head is significantly different from a PoziDriv; see #
Sheet metal screw, hex head. Sheet metal screw, Phillips oval head. Wood
Screws Screws with a smooth shank and tapered point for use in wood.
Here's a good guide to the different point types and uses. See more pics of thread
cutting screws here. Even more good pictures of different head types.
Oct 25, 2011 ... Various washer types that are used with screws, nuts and bolts when ... There are
several different locations on a fastener where one can ...
has a cylindrical shaft and a sharp thread that cuts its own hole, often used in sheet metal or plastic.
Countersunk: conical, with flat outer face and tapering inner face allowing it to sink into the material, very common for wood screws
Hexagonal... More »
Different types of screws have been developed to maximize efficacy for particular
applications. The various types of screws can be categorized according to ...
Nov 9, 2010 ... Why can't we just always use one standard screw type? Are there advantages/
disadvantages to the different types? Are there times when one ...
Types of Bolts & Screw Heads ... Slightly different head contour where supplied
with recessed head. See dotted line. FLAT HEAD: Supplied to standard ...
Jun 15, 2009 ... To help, we prepared this guide to screw head types and drives. ... It is different
than the usual TORX Plus because it uses only a FIVE lobe ...
Jun 15, 2012 ... Can you identify these types of screws? ... sheet metal, drywall or wood screws
with different types of heads and have the distinctive advantage ...