Tamper Evident Seals
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High Security Container Seals

High-security container seals are an integral element of the oversea and air freight process and can help protect cargo from theft and tampering upon application. However, ISO 17712 seals are also a mandatory requirement for many global container shipping companies as instructed by CPAT.

What are Container Seals?

Container  seals are a strong locking device used to seal and secure international cargo containers once shipment is loaded. Upon placing a container seal, a container has been properly closed at origin. Because these seals can only be removed once, it ensures that a container remains unopened during the journey to its final destination where it is removed by the consignee.

These metal container seals therefore provide tamper evidence and help to detect cargo theft or contamination. These security seals have a relative high breaking strength and therefore also provide a greater level of security than most other security seals. A container seal has its own unique number as identification and this number is listed on the shipping paperwork. The people receiving the container must check the bill of lading and check whether the seal number matches with the number on the container.

A container bolt seal used for securing containers must conform to the ISO 17712:2013 high security seal standard in order to be accepted by customs all around the world in ocean shipping. ISO 17712:2013 certified bolt seals comply with CTPAT as well. CTPAT, which stands for Customs Trade Partnership Against Terrorism, was started by U.S. Customs and Border Protection to strengthen international supply chains and improve United States border security.

Container Seal Options

Container seals come in many different shape, size and security levels. We offer a range of high-security, ISO 17712 compliant security seals for use when transporting cargo by land, sea or air. Below are only a few of our most popular container seals:

HMRC Bolt Seals

The plastic coated bolt and locking bush are moulded as a unit and laser marked with identical sequential numbers for added security. The seals are packed in high quality clear re-closable wallets of ten seals, making it easy to remove seals singularly and then re-close the wallet. When the seal has been locked the bolt spins freely on the locking bush to confirm seal integrity. The seal can only be removed using bolt croppers. The Acme Bolt Seal is an ISO 17712:2013 (E) compliant high security bolt seal, designed for high value ISO container cargo shipments. You can purchase this seal by visiting our product page HM Revenue and Customs Bolt Seal (£57.50 per 100).

Metal Cable Seals

Cable Seals are classed as a barrier seal, which is a variable length cable security seal, and provides a high level of security through its unique locking mechanism and cable design. High security Cable Seal are easily applied by hand and can be used to secure trucks, shipping containers, tankers, railcars, valves. Once closed or cut it cannot be resealed. This seal has successfully passed the stringent ISO PAS 17712:2013 test. You can find this product by visiting our product page Metal Cable Seals (£60.00 per 100)


The Forkseal provides complete wrap-around protection of container locking bars of any size and offers the highest form of container security. The seal plates and bolt seal can be fitted at an appropriate section of the fork. The seal provides a high-level of physical strength – the strong steel can only be cut at the designated cutting point. The seal resists manipulation and substitution with numbering replicated on the pin and fork bar. The Forkseal safety locking system protects container doors, railway cars, truck trailers, international freight and more. This seal is approved by both UK and US customs as is fully compliant with ISO 17712:2013 HSS (high security seal) WITH ISO/IEC 17025:2005. You can purchase this seal by visiting our product page Forkseal (price based on quantity).


The Metal Ballseal are extremely durable, providing secure protection for shipments in transit.  It is a reliable and acts predominantly as an immediate indicator that goods have been received as sent. The seal features a locking mechanism totally enclosed in the head, which is secured by two independent spring rings. Once the two spring rings click shut the Globe Seal cannot be resealed. The seal is applied without the need of tools and is fully compliant with ISO PAS 17712. You can purchase this seal by visiting our product page Metal Ballseal (£80.00 per 1,000).


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