Cableloks
Mechanical cable seal, no heatshrink.
The patented Cablelok mechanical seal gives a repeatable, consistent seal between cable and closure port — no gas bottles and no reliance on engineer skill.

At a glance
| Specification | Value |
|---|---|
| Type | Mechanical cable seal |
| Seal rating | Tested beyond 6m head of water |
| Install | No heatshrink or gas required |
| Use | High port-density closures |
- UK WarehousedSame-week dispatch
- In-house engineersTechnical specs & support
- End-to-end BOM fulfilmentKitted, staged, delivered
- 120+ network buildersTrust Altnets to deliver
Key features
Built for how it gets installed.
Cableloks is one of the 22 cable types we carry across our Enclosures range — chosen for the way you actually deploy.
Patented mechanical seal
Tested beyond 6m head of water
Install times cut by up to 90%
Suits high port-density closures
Why Altnets
The clever choice for network builders.
Deep UK stock
300,000+ sqft of warehousing and 4,000+ pallet positions — same-week dispatch on most line items.
Engineers, not order-takers
In-house technical team to validate specs, propose alternatives and de-risk your build before it ships.
BOM, kitted & staged
Multi-vendor consolidation, phased deliveries and project staging built into every order.
UK & worldwide reach
Air, sea and road freight with full export documentation and flexible incoterms for global rollouts.
Applications
Where cableloks earns its keep.
FTTx closures
High-density port sealing
Aerial and underground joints
Repeatable field installs
Have a question?
Let's get your network moving.
Tell us what you're building. We'll come back with a quote, lead times, and a plan.
- [email protected]
- +44 (0) 20 3997 8994
- Brighton · United Kingdom
More Enclosures
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Compact node for high drop counts.
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CCE
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CCP
Compact customer connection point.
CCP XL
Higher-capacity customer connection point.
CMJ
Compact re-enterable mass joint.
CNC
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CWB
Building entry point on the wall.
FDN
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FFE
Facade-mounted fibre connection point.
FIST MSC
Modular splice closure that adapts.
HST
Hardened terminals for every deployment.
LMJ
High-count jointing in the chamber.
MCCE
Building entry for up to 12 customers.
MDU Series
Last-mile enclosures for MDUs.
MMJ
The mid-size mass joint.
Mounting Brackets
Secure support for enclosures and boxes.
OTE
Plug-and-play optical termination.
Port Opening Tools
Open closure ports safely.