Defender Dually 4mm (18″)

The Defender Dually is a high-security cable seal featuring a robust 4.0 mm diameter cable, designed to offer an increased level of tamper protection. This double-locking cable seal is rated High Security per the ISO 17712:2013 testing standard and is C-TPAT compliant, ensuring it meets the highest global security standards. Ideal for a wide range of applications, the Defender Dually is particularly popular for sealing bulk railcars, intermodal containers, and trailers. The non-preform cable frays wildly when cut, providing clear evidence of tampering, and is galvanized for superior corrosion protection.

  • In Stock Colors: Red
  • Lengths: Stock Lengths 18”, 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
50401DA** Stock Defender Dually $2.20  $2.09  $1.95  $1.75
50401DB** Custom Defender Dually $2.29  $2.19  $2.05  $1.85
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  • Dual lock is resistant to tampering by ratcheting and shimming
  • C-TPAT Compliant
  • Rustproof aluminum body
  • Tool-less application
  • Heavy duty galvanized steel cable provides durability and extra strength
  • Non-preformed cable wildly unravels when cut
  • 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
  • Stock seals are engraved with the word “SECURED” and sequential numbering
  • Custom laser engraving available – Name, logo, serial numbering, barcodes
  • Colors: Red

  • Multiple packaging options ranging from 50 to 100 seals per box
  • Gross weight: 36.2 lbs per 250 seals

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

  • Aluminum body with galvanized steel cable
  • Body size: 1.38” x 1.62” x .38”
  • Cable diameter: 0.16” (4mm)
  • Stock cable length: 18”
  • Custom lengths available
  • Custom printing: Names, Logos, Barcoding
  • Numbering: Sequential
  • C-TPAT Compliant – ISO 17712 Certified

  • Place loose end of cable through opening of item to be sealed
  • Insert cable end into first seal body to engage self-locking mechanism & pull to desired length
  • Insert cable end through second locking mechanism to engage added security feature
  • Secure the seal by pulling cable end 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

  • Custom cable lengths available. Each incremental cable length is $0.30 per foot per seal
  • Custom laser etching available: 3 lines available on seal body with a maximum of 9 characters per line
  • Company logos can be designed and etched onto seal bodies for additional charge
  • Custom numbering available with 8 digits required
  • Various seal body colors available upon request and MOQ
  • Standard bundling of 10 seals per bag and 250 per case. Custom bag options available upon request
  • Barcoding: 39 & 128 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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