Hexlox : nuts and anti-flying screws for bicycles
Hexlox is a german brand specializing in the protection of bicycle devices.
Their solution, almost universal, is based on the fact that most of the spare parts of your bikes are fixed through hexagonal head screws (also called BTR screws or Allen print screws).
The idea is to make their access inaccessible by a magnetic insert that only a coded key can remove.
Products Hexlox have been tested thousands of hours.
They are made in Germany and machined with precision using digital control machines.