Editing Screwdriver (section)

===Other types===
[[File:Set of security screw driver bits.jpg|thumb|A set of "secure" or otherwise less common screwdriver bits, including secure Torx and secure hex or "Allen" variants]]
Many modern [[electrical appliance]]s, if they contain screws, use screws with heads other than the typical slotted or Phillips styles.  '''[[Torx]]''' is one such pattern that has become widespread. It is a spline tip with a corresponding recess in the screw head.  The main cause of this trend is manufacturing efficiency: Torx screwdriver tips do not slip out of the fastener as easily as would a Phillips or slotted driver.

Non-typical fasteners are commonplace in consumer devices for their ability to make disassembly more difficult. In microwave ovens, such screws deny casual access to the high-power kilovolt electrical components.

Torx and other drivers have become widely available to the consumer due to their increasing use in the industry. Some other styles fit a three-pointed star recess, and a five-lobed spline with rounded edges instead of the square edges of the Torx. This is called a '''Pentalobe'''.

Specialized patterns of security screws are also used, such as the '''Line Head (LH)''' style by OSG System Products, Japan, as used in many [[Nintendo]] consoles, though drivers for the more common security heads are, again, readily available. Another type of security head has smooth curved surfaces instead of the slot edges that would permit loosening the screw; it is found in public rest room privacy partitions, and cannot be removed by conventional screwdrivers.