High-Security Container Bolt seals are the most popular types of barrier seal for the secure transportation of shipping containers, trucks and trailers during customs movements, including the customs border between the UK and EU post-Brexit. View our handy guide to shipping container security.

Our Locktainer bolt seals are ISO17712 'H' High Security certified and C-TPAT compliant, offering the highest level of protection for your cargo throughout the world. Our barrier seals are accepted by UK, US and EU custom authorities, and are regularly retested to ensure compliance with ISO17712 certification standards. Additionally, the Locktainer 2020 bolt seal has SSTA certification and is accepted by HMRC in the UK as a Group 1 customs trader barrier seal, and continues to be accepted post-Brexit. The CTF Locktainer 2020SH bolt seal is the sole approved barrier seal for EuroTunnel freight movements. We can supply sequentially numbered items from our UK warehouse, or can offer you a bespoke marked barrier seal with your own organisation requirements, including company logo, bespoke numbering and/or barcoding, and bespoke colours.