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Security Seals

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Security seals are plastic or metal seals that are used to secure a container, often rail and shipping freight containers, against intrusion. Security seals are tamper evident, meaning that they are specifically designed to be apparent if someone has broken in. Part of the tamper evident nature of security seals is that they are one-use only: security seals must be cut to be removed, and are typically numbered so that they can't be cut and then replaced without it being evident.

Security Seal Suppliers

  • SupplyPlaza provides a wide variety of both metal and plastic security seals, including bolt seals, cable seals, padlock seals, and more. SupplyPlaza offers security seals for sale online both in small quantities for individual use or small businesses, as well as large quantities for larger businesses. SupplyPlaza's unique business model allows even smaller quantity orders to be purchased for competitive prices. SupplyPlaza now also offers metal truck door seals and beaded cable ties!

Tamper Evidence of Security Seals

Security seals serve two purposes: to secure a container from intrusion similar to a standard lock, and to provide evidence of attempts at tampering. The tamper evident nature of security seals sets them apart from standard locks. While a lock can be picked, or even cut off and replaced, leaving no evidence that the contents of a container have been tampered with or stolen, a security seal provides evidence of attempts at intrusion. Security seals accomplish this tamper evidence in three primary ways:
  • One Use: Security seals are one-use only. While locking a security seal i