The NSS412-L Seal is one of the strongest plastic security seals in the Navacqs range, featuring an impressive 40 kg breaking strength. Thanks to its wide 7.5 mm sealing tail and durable metal insert, this robust seal is ideal for heavy-duty applications such as securing big bags, mailbags, and truck doors. The seal cannot be opened by hand and includes a unique imprint and sequential numbering to prevent tampering or fraud.

Extremely Strong Seal with Metal Locking Mechanism

The NSS412-L Seal is made from high-quality Polypropylene (PP), a durable, chemically resistant material. PP retains its strength under extreme conditions and withstands temperatures from -40°C to +80°C. The locking mechanism includes a metal insert with hook-shaped teeth that grip the sealing tail firmly, allowing movement in only one direction. This ensures a secure, one-time use seal.

High Breaking Strength with Wide Sealing Tail

The 7.5 mm wide flat sealing tail gives the NSS412-L Seal its exceptional 40 kg breaking strength, making it significantly stronger than standard plastic pull-tight seals. While the wider design may be less suitable for narrow openings, it provides superior holding power where strength and stability are required.

Enhanced Grip Through Locking Teeth

Around the locking section are sharp ridges that bite into the surface when tightened. The tighter the seal is pulled, the stronger the grip becomes. This design prevents slippage and makes tampering nearly impossible.

Applications: From Sack Sealing to Transport Security

The NSS412-L Seal is designed for demanding environments. It is commonly used for sealing mailbags, big bags, and other heavy packaging that requires a secure closure. Its high breaking strength and reliable lock also make it suitable for securing truck doors and other transport-related security needs.

Unique Numbering and Customization

Each NSS412-L Seal is printed with the text “NSS412L SEAL” and a sequential number that is produced only once, ensuring full traceability. On request, the seal can be customized with a company name, logo, or barcode for improved identification and branding.

Your Own Text or Logo?

• Product Name: NSS412-L Seal

• Seal Color: Red, Blue, Yellow, White, Green, Orange, Black

• Print Color: Black or white (depending on seal color)

• Text Printing Available: Yes

• Logo Available: Yes

• Unique Numbering Available: Yes

• Barcode Available: Yes

• Minimum Order Quantity: 1,000 pieces

• Estimated Lead Time: Approximately 6–7 weeks

Please contact us for the current lead time.