The GP422 container seals are used for securing truck trailers and cargo containers. These bolt seals are designed to act as a one-time use product, which means once the seal has been locked it must be removed by destroying the seal. Each bolt seal features a unique laser engraved serial number on both the bolt shaft and the locking mechanism. Also, feature an anti-spin feature that provides added security to prevent unauthorized access. These bolt seals also feature a unique metal-on-metal interlocking mechanism for added cargo security and are C-TPAT compliant and meet the new design and construction standards of ISO 17712:2013.