Use our custom seals tool to quickly personalize, proof and order seals or include your personalized text in the special instructions field. Heavy-duty steel cable lock is C-TPAT and ISO 17712:2013(e) compliant. Self-locking cable lock must be removed with bolt cutter. High-security cable lock is ideal for securing rail cars, cargo doors, gates, drums and hazmat shipping containers. Made of sturdy steel, this cable lock ensures long-lasting durability as well as maximum security for a wide range of applications.