These trailer seals meet C-TPAT / ISO 17712:2013 requirements for high-security metal seals for container. Cargo Bolt seals for containers have the "H" stamp on the bottom of each seal.
The truck seal has a long bolt length which provides extra space - making it easier to remove. You will need bolt cutters or a grinder to remove the tamper seal once it has been locked. The truck seals have a 10.5mm thick steel shaft. The total length once seal locked is 92mm. In the locked position of the seals, there is a 50mm space between the ends of the bolts allowing room to be cut.
The container seals have 133 SUPPLY logo on one end as well a unique matching serial numbers on each end for added high security and making it harder to replace. These are a single use shipping seals.
The shipping container locks have an anti-spin feature which provides you with some added security to prevent un-authorized entry to the cargo container. When locking make sure numbers on each end of the bolt are on the same side.
Container bolt seals are inexpensive - a high security lock for peace of mind - excellent shipping container accessories and semi truck accessories. Designed by USA company with 889 certification and manufactured in China.