TorxPlus

Torx Plus is a type of screw drive that is an evolution of the standard Torx drive. It features a modified six-pointed star shape with lobes that are not straight-sided but rather have a slight curve. This design allows for a more positive engagement between the screwdriver bit and the screw head compared to the standard Torx system. The increased contact area and the modified lobe shape reduce cam-out, which is the tendency for the driver to slip out of the screw head, especially under high torque.

Torx Plus drives are often used in applications where higher torque is required, or where the reliability of the connection is critical. They are commonly found in automotive manufacturing, industrial equipment, and security applications. The Torx Plus system is also designed to be backward compatible, meaning that a standard Torx driver can often be used to engage a Torx Plus screw, although it will not provide the full benefits of the Torx Plus design. Conversely, a Torx Plus driver can sometimes be used with a standard Torx screw, but it is not recommended as it may damage both the driver and the screw.

The development of Torx Plus was driven by the need for improved performance in demanding environments. The enhanced torque transfer capability and the reduced risk of cam-out contribute to increased efficiency and safety in assembly and maintenance operations. Various sizes of Torx Plus drives exist, each designated by a specific number, similar to standard Torx.