Createprocess Does Not Show Window Contents there. This box: • • • A screw drive is a system used to turn a. At a minimum, it is a set of shaped cavities and protrusions on the screw head that allows to be applied to it. Usually, it also involves a mating, such as a, that is used to turn it. The following heads are categorized based on commonality, with some of the less-common drives being classified as 'tamper-resistant'.

Most heads come in a range of sizes, typically distinguished by a number, such as 'Phillips #00' or 'Torx T5'. These sizes do not necessarily describe a particular dimension of the drive shape, but are often arbitrary designations in the same sense as a 'Size 8' dress. The slot screw drive has a single slot in the fastener head and is driven by a 'common blade' or flat-bladed. It was the first type of screw drive to be developed, and for centuries it was the simplest and cheapest to make. The slotted screw is common in simple applications, but is not often seen in applications where a would be used because a power driver tends to slip out of the head, potentially damaging the surrounding material. The tool used to drive a slot is called a common blade, standard, flat-blade, slot-head, flat-tip or flat-head / flathead screwdriver.

Coin-slot drive [ ]. The Frearson screw drive, also known as the Reed and Prince screw drive, and specified as ANSI Type II Cross Recess, is similar to a Phillips but the Frearson has a sharp tip and larger angle in the V shape. One advantage over the Phillips drive is that one driver or bit fits all screw sizes.