[HIGHEST SECURITY BOLT SEAL]: Our series bolt seals feature a unique metal-on-metal interlocking mechanism --- making it the highest security bolt seal on the market. These seals are C-TPAT compliant and meet the new design and construction standards of ISO 17712:2013, which provides improved security.

[8MM THICKER STEEL BOLT AND MORE DIFFICULT TO TAMPER WITH]: it is made of an all metal high-strength steel construction. The clip - the actual locking mechanism - is embedded in a groove in the metal bush, making the seals stronger and more difficult to tamper with.

[TRACK & TRACE FEATURES]: Unique correlative serial numbers with identical barcode engraved (not painted) on both parts provide traceability and greater security as it prevents parts substitution or replacement.

[ANTI-SPIN LOCKING MECHANISM]: Anti-spin feature provides additional resistance to tampering by friction attacks.