Plastic Fixed Length Security Seals

Truck and trailer fixed-length security seals or 'ring seals' (due to the fixed loop they form when sealed) are ideal for a range of transport operations - including road and rail. Ring seals are also referred to as truck seals and trailer door seals, as their main purpose is for use as an anti-tamper security seal on HGV trailer door locking hasps and curtain sider buckles... Truck seals are also suitable as an indicative security solution for petrol / bulk food / liquid tankers and shipping containers. Our ring seals are designed to be easily applied and removed without the need for tools, as they break by hand with a sharp tug. Fixed length seals also include a range of specialised seals for sealing of attached lid containers and barrels, such as plug seals and drum seals.

Guide to truck security seals

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yellow Fixed length truck seal Fixed length truck seal on back of lorry
IN STOCK

DoubleLock Truck Seals

From £49.50
Enhanced truck & trailer security seal with twin-lock & protruding tail. Recycled plastic.
Black Fixed length truck seal with numbers Fixed length truck seal on back of truck
IN STOCK

Fleetlock Ring Seals

From £49.00
Low cost trailer ring seals with flag for custom marking
Red Unifreight Ring Seal Green Unifreight Ring Seal
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Unifreight Ring Seals

Contact us for pricing
Multipurpose truck and trailer seal for higher strength requirements
Red Striplock metal security seal Yellow Striplock Security Seal
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StripLock Metal Seals

Contact us for pricing
Combined plastic / metal strip security seal with high quality print flag
Plastic yellow Ring Seal Plastic blue Ring Seal
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UNI560 Ring Seals

Contact us for pricing
Trailer seal with paddle end, available in two lengths
Barcoded tote box seals Seal on tote box
IN STOCK

CrocLoc Tote Box Plug Seal

From £29.00
Tote box plug seals, barcoded as standard or with bespoke logos & numbering
Plug Seals for Tote Boxes Tote box seal options
IN STOCK

SK1 Plug Seals for Tote Boxes

From £29.00
Tamper-evident plug seals for tote boxes. Plain, numbered & paired options.
Barrel seal on drum barrel seal in several colours
MADE TO ORDER

BarrelSafe Drum Seals

From £67.50
Specialised drum seals for open top barrels, customised to your requirements

Choosing the Right Fixed-Length Security Seal

Fixed-length security seals (also known as 'ring seals' when used on truck and trailers) are designed for quick and consistent application. The right choice depends on strength, use case and ease of removal. Use the guide below to select the best seal for your requirements.

 

Seal TypeBest ForKey BenefitStrengthRemoval
FleetLock Ring SealTruck & trailer doors, rail, containersLow-cost, quick visual securityLightBreak by hand
DoubleLock Ring SealTransport where visual check is importantProtruding tail confirms correct lockingMedium (~20KgF)Break by hand
Unifreight HDHigher-risk freight & transportStronger solid strap designHigh (45KgF+)Tools required
StripLock Metal SealTrailer, rail & sea freightSteel strip for higher tamper resistanceHigh (~50KgF)Tools required
CrocLoc Plug SealTote boxes, ALCs, cratesBarcoded plug seal for container trackingLightPull apart
SK1 Plug SealRetail & warehouse tote boxesLow-cost, reliable crate sealingLightPull apart
BarrelSafe Drum SealOpen-top barrelsSpecialist seal for drum securityLightBreak/remove

 

 

Frequently Asked Questions

What is a plastic security seal?

A plastic security seal is a tamper-evident device used to secure various containers and goods. It is designed to provide a visual indication of tampering, ensuring that the contents remain intact and untouched during transit. These seals come in various forms, such as the fixed-length seals shown on this page, as well as pull-tight seals, meter seals, tote box seals, and so on. Each type serves a different security need across particular applications and industries.

How do tamper-proof seals work?

Tamper-proof seals work by providing a clear indication of any unauthorised attempts to access the secured item. Once applied, these seals are designed to break or show visible signs of tampering if someone tries to open or manipulate them. This feature helps in quickly identifying any breaches and taking necessary actions to investigate and resolve the issue.

Why does each container get a plastic seal?

Each container receives a plastic seal to ensure the security and integrity of its contents. The seal acts as a deterrent against unauthorised access and tampering, providing peace of mind to both the sender and receiver. By using plastic security seals, companies can maintain the safety of their goods, comply with industry regulations, and prevent potential losses.

How do you verify a security seal?

To verify a security seal, check for any visible signs of tampering, such as broken or missing parts, altered numbers, or damaged surfaces. Many security seals come with unique identifiers, such as serial numbers or barcodes, which can be cross-referenced with records to ensure authenticity. Regular inspections and proper documentation of these identifiers help.