Industrias Lotu, S.A.

Technical information on types of recess

TORX® fastening system
This system basically has the following advantages:

•Straight sides in the screw head drive:-Improves adjustment between the screwdriver and the recess.
-There is no "Cam-Out" effect which pushes the screwdriver out of the recess
-Due to the fact that the "Cam-Out" is virtually eliminated there is no need for any final pressure when screwing.
-Ergonomic studies have shown that the TORX screw fastening system reduces tiredness and muscle tension when assembling screws manually.

Adjustment between the walls of the recess and the bit minimise the risk of screwdriver slippage and the resulting damage this can cause.

TORX® fastening system

•Screwdriver angle of attack at 15°:
-Provides greater torque
-The radial forces are drastically reduced and therefore the tool life is extended (screwdriver, screw bit)

•Extensive contact surface:
-The forces generated in screwing are spread over an extensive surface, in contrast to other fastening systems which have only one point of contact.
-Enables more efficient transfer of torque
-Increase in performance and duration of the tools (screwdriver, screwing bits).

TORX® is a trade mark of Acument Global Tecnologies, Inc.

Types of head and recess