Saipor 10pcs Magnetic Pentagon Head Screwdriver Bits Set 1/4 Inch Hex Shank Security Tamper Proof Pentagonal Drive Bit Five-Sided Figure Screw Driver Drill Bit for Electric Hand Screwdrivers, 50mm

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At a minimum, a screw drive is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it. They are commonly found on German vehicles such as BMW, Opel, Mercedes, and those from the Volkswagen Group ( Porsche, Audi, Seat, Skoda, and Volkswagen). A combined slotted and Robertson drive screw found in electrical power equipment and distribution equipment. This form was the first type of screw drive to be developed, and for centuries, it was the simplest and cheapest to make because it can just be sawed or filed. This type of bolt is commonly used with prison door locks, automobile ignition switches, and street signs, to prevent easy removal.

They are often used on items where the user is not likely to have a screwdriver when needed, such as recessed screws that attach cameras to tripod adapters, and battery compartments in some equipment such as children's toys. One example familiar to laypersons is for the attachment of wheels and spare tires of passenger vehicles to deter theft; one of the lug nuts on each wheel may require a specialized socket provided with the set of lug nuts. Tri-groove or T-groove is a design for a security screw with a flat-topped conical head and three short radial slots that do not join in the center. As patents expired and awareness of their advantages spread, Robertson fasteners have become popular in woodworking and in general construction. They can put emergency responders and the public at greater risk attending a non emergency and even cause complacency and risk fatigue with staff, pupils and members of the public, meaning that they are less likely to respond in a real emergency situation.Breakaway fasteners used in a non-security application may have a second driveable surface (such as a hex head) to allow later removal or adjustment of the fastener after the initial breakaway installation. For this reason, cruciform-slotted along with drives have replaced the slot drive in numerous applications. Originally to make the manufacture of the screws practical using cold forming of the heads, [14] :79–81 this taper provides two other advantages which have served to popularize the drive: it makes inserting the tool easier, and tends to help keep the screw on the tool tip without the user needing to hold it there.

The Supadriv (sometimes spelled incorrectly as "Supadrive") screw drive is very similar in function and appearance to Pozidriv.

Despite the similar naming scheme to metric fasteners, there is no correlation between the name of the size and the dimensions of the tool.