SECURE Pull Tight Seal — Adjustable Plastic Cargo Seal

Adjustable pull-tight plastic security seal

The SECURE Pull Tight Seal is one of the most versatile categories in the tamper-evident seal family. Its defining feature is an adjustable-length one-way ratcheting locking head: the operator threads the tail through the head, pulls until snug, and the internal ratchet prevents any backward motion. Once locked, the seal cannot be loosened or removed without visibly destroying it — providing clear, irreversible tamper evidence.

Why pull-tight seals are useful

Because the locking head accepts variable tail-length, pull-tight seals work where the circumference of the asset being sealed is irregular or variable: cash bags, mail sacks, drum lids, fire-extinguisher cabinets, valve handles, electrical-panel doors, and irregularly shaped freight closures.

Technical specifications

• Material: polypropylene; nylon tail in high-strength variants; optional internal steel wire for premium tier.
• Tail length: 200–400 mm; effective circumference up to ~350 mm.
• Tensile strength: 18–50 kgf depending on variant.
• Locking: one-way internal ratchet — irreversible.
• Numbering: laser-etched sequential serial; optional Code-128 / Data Matrix barcode.
• Operating temperature: -30 °C to +80 °C.
• Colours: 8+ standard; custom branding at production stage.

Industries served

Cash-in-transit and banking, postal services and couriers, pharmaceutical and medical supplies (waste-bag closure, kit sealing), airline catering and in-flight cart sealing, fire-safety inspection, industrial valve and switch tag-out sealing, and e-commerce parcels for high-value shipments.

Strap seal or pull-tight seal?

Strap seals are pre-sized and faster to apply in high-throughput environments; pull-tight seals are adjustable and better suited to varied geometry. Most operations use both. See the SECURE Strap Seal and the wireless SECURE RFID Plastic Strap Seal. Get a quote.