Defender 3.5mm

Defender 3.5 seals are high-security cable seals designed for heavy-duty applications. Ideal for securing freight containers, high-value storage units, and truck doors, these seals feature a robust 3.5 mm diameter cable, providing enhanced security and durability. The Defender 3.5 seals are C-TPAT and ISO17712 compliant for international trade and ensure shipments meet global shipping standards. With an adjustable loop that offers flexibility and a wide application range, these seals are perfect for securing almost any type of container or heavy-duty door.

  • In Stock Colors: Red, Green, Blue, Black
  • Lengths: Stock Lengths 12”, custom lengths available
  • Numbering: Sequential, 8 digits
  • Marking: Laser Etching with “SECURED”, barcoding available

To order quantities higher than 5,000 seals, please contact us  or call 630-584-2918

Price per Seal
Model No. Description 100 Seals 250 Seals 500 Seals 1000 Seals
50301DA** Stock Defender 3.5 $1.70  $1.55  $1.40  $1.15
50301DB** Custom Defender 3.5 $1.82  $1.67  $1.52  $1.27
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  • C-TPAT Compliant
  • Rustproof aluminum body
  • Tool-less application
  • Heavy duty galvanized steel cable provides durability and extra strength
  • Flexible sealing capabilities: can seal uneven or bent locking mechanisms
  • Loop diameter can be adjusted to any size
  • Anodized colors
  • Provides the ultimate anti-pilferage protection
  • Recyclable
  • Stock seals are engraved with the word “SECURED” and sequential numbering

  • Multiple packaging options ranging from 100 to 250 seals per box
  • Gross weight: 8.6 lbs per 100

  • Freight containers
  • Gates
  • Railroad freight and tank cars
  • Storage units
  • Truck doors
  • Intermodal Containers

  • Aluminum body with galvanized steel cable
  • Body size: 1.30” x 1.19” x .37”
  • Cable diameter: 0.14” (3.5mm)
  • Stock cable length: 12”
  • Numbering: Sequential
  • Average Breaking Strength: 3000 lbs

  • Place loose end of cable through opening of item to be sealed
  • Insert cable end into opening of seal body to engage self-locking mechanism
  • Secure the seal by pulling cable until tight
  • Record seal number and seal color as required
  • Verify serial number and integrity of security seal
  • While wearing proper safety equipment, shear cable with cable cutter & remove
  • Dispose of used cable seal properly

  • Custom cable lengths available. Each incremental cable length is $0.03 per inch per seal
  • Custom laser etching available: 3 lines available on seal body with a maximum of 9 characters per line.  Company logos available upon request.
  • Custom numbering available with 8 digits required
  • Various seal body colors available including: Red, Green, Blue, Black
  • Standard bagging is 10 seals per bag and 250 per case. Custom bag options available upon request
  • Barcoding: 128 (Standard) & 39 available on custom seals
  • Allow 2 weeks production time for custom made seals
  • Have a custom request you do not see? Contact us or give us a call at 630-584-2918
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