Bolt seals are high-strength security seals used on shipping containers, railroad and air freight containers. The solid metal core head and a locking cylinder that is encased in shock proof plastic makes for a high level security seal and an efficient tamper deterrent.
STOCK METAL BOLT SECURITY SEALS- All bolt security seals (stock ones) include BLACK LASER ENGRAVED numbers (7 digits) for security purposes with NO lettering on them.
C-TPAT (ISO/PAS 17712- High Security Seal Level)