UAP Hidden Fix Letterplate Restrictor Shrouds & Extensions

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Features Include:

Great protection against key fishing
Prevents the letterplate inner flap opening more than 40 degrees
Prevents rods being pushed through the letterbox
14.5″ long means it fits most letterplates
The Hidden Fix technology doesn’t leave any visible fixings on the exterior of the home and protects it from being removed from the outside
Available as part of the UAP Nanocoast range which comes with a LIFETIME coating guarantee!


Key fishing or letterplate fishing is a technique burglars use to get hold of your keys, purse, handbags and more without even having to enter a property!

They simply push open your letterbox flaps and use a long hooked rod, similar to a fishing rod, to ´fish´ for your keys and handbags. Meaning they can then use the keys to just walk into your customer’s property and help themselves to anything they want before driving off in their car!

The UAP Hidden Fix Letterplate Restrictor Shroud will stop hands getting through your letterbox and either hooking your keys, or opening your lock. This simple but effective device is 14.5″ long and stops the inner flap opening more than 40 degrees and so stops unwanted hands being able to manoeuvre a rod inside. This Letterplate Restrictor Shroud features the impressive Hidden Fix technology, meaning that it doesn’t leave any visible fixings on the exterior of the home and further protects it from being simply removed from the outside.

The PVD gold, mirror polished and satin stainless hidden fix letterplate shrouds are made from 316 grade stainless steel, and is part of the UAP Nanocoast range. The UAP Nanocoast range of products are specifically designed for areas which are within a 25 mile radius of the coast, or within 5 miles of highly populated industrial areas. The identity card slot have been salt spray tested to ASTM B117 for 2,000 hours, and comes with an industry first LIFETIME coating guarantee, as the products will not pit, rust or corrode no matter what environments you put them in!

Letterplate Restrictor Shroud Extensions

lp shroud extension front

To overcome people being able to manipulate the thumb turn using straps from the outside, we have developed an letterplate shroud extension arm on the hidden fix letterplate shrouds.

They come available as either left and right handed, depending on which side the thumbturn is on. This letterplate shroud extension arm fits into the hidden fix letterplate shrouds and it is extremely difficult to get any wires around it to open the thumbturn. We currently have these in gold, silver and white (colour matched to the letterplate shrouds).