The DETER BOLT screw is to be considered as real deterrent for solar panels The DETER BOLT screw is a product designed and patented by Cagnasso Ltd. Having perceived the peculiar need of the solar panel market to an effective solution for their locks, Cagnasso Ltd has created a completely new application in comparison to what is currently on the market. The DETER BOLT screw is to be considered as real deterrent to the growing trend to illegally remove solar panels, giving at the same time the opportunity to perform regular maintenance by removing and reusing the same screw. The DETER BOLT screw has as main characteristic the impossibility to be unscrewed with any standard tool currently on the market if not the authorized key supplied. Therefore it can be considered to all effects a burglar alarm. The main item of the product are then the DETER BOLT keys, also designed by Cagnasso Ltd, reason why they are provided with its own engraved numbering making each key "one of a kind". In order to preserve their performance, every client shall, at the conclusion of the assembly work, pick up and keep the keys for the subsequent maintenance activities. The DETER BOLT screw will determine the future of your PV system protecting your investment. DETER BOLT Quality and safety lock</p>