Video Knowledge / Video
Original Sussex Installations video

Ultimate Van Lock - Demonstration of how it works - OLD Design Ultimate

Sep 6, 2013 · 90,605 recorded views

Video ID: 9mPl4kvxWmEFoundationsSep 6, 2013 · 90,605 recorded views

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Jeff Scott's retrospective context — 2026

The Ultimate lock shown here made two points that still matter to me. First, it bolted through both doors rather than sitting on one door alone, so it kept the doors held together against the kind of forceful bending or levering attack that a single-door lock cannot resist on its own. Second, it demonstrated that the same physical lock could be used as either a deadlock or a slamlock, depending purely on how the key was used, rather than needing two different products.

You do run the risk of actually leaving your keys inside the vehicle and then closing the door, which could be a bit of a pain.

That honesty about the trade-off is the part I still stand by: used purely as a slamlock, it is genuinely convenient for a forgetful user, but it carries a real risk of locking your own keys inside. Used as a deadlock, you get overnight security without that risk, at the cost of having to remember to turn the key yourself. The design shown in this video has since been superseded — I have kept the video online and clearly labelled as the old design rather than deleting it, because I think it is more useful to van owners to be transparent about how a product has evolved than to quietly erase the earlier version.

Original description

A demonstration of the Ultimate Van Lock from Jeff Scott of Sussex Installation Team, the Ultimate Van Locks can be ordered as Deadlocks or Slamlocks depending on your needs.

There has been a design change since this video was created, please see our website and newer YouTube videos to see the new design.

Contact us via our website at http://www.sussexinstallations.co.uk for more details about installation to your van in Sussex, Surrey, London and the South East.

Subscribe to both our YouTube channel and website newsletter to keep up to date with van security products and advice; as things are constantly changing as we respond and adapt to new attack techniques as we see them.

Note: Whilst we take great care in selecting products and techniques that we believe are effective to increase your van's security, we can never guarantee that any van is safe from a break in, please see our website for full terms and conditions.

Common questions

What made the Ultimate lock different from a standard deadlock or slamlock?

It bolted through both doors rather than sitting on a single door, holding the doors together against forceful bending or levering attacks that a single-door lock cannot resist on its own.

Can the same Ultimate lock be used as either a deadlock or a slamlock?

Yes. The same physical lock can operate as either, depending purely on how the key is used — locking automatically when the door closes for slamlock use, or requiring the key to lock it for deadlock use.

Why is this video still online if the design has changed?

I would rather be transparent about how a product has evolved than quietly remove the earlier version. The video is clearly labelled as the old design so viewers know to check the current website and newer videos for the current version.

Transcript

Show transcript
0:00 -hi I'm Jeff from Sussex installations and this is another lock which I'd like to talk to you about we've um looked at slam locks we looked at deadlocks and this one is the ultimate lock this lock
0:09 -here as you can see is a very tough lock it's bolted actually to both both doors it's fixed to it keeps both doors together at the same time so perhaps if
0:17 -there was some increase in the the lengths that criminals are willing to go to to actually break through a door to bend it open then this is um this is the
0:25 -next up step up as well in terms of actually um trying to combat that now if I just demonstrate the lock at the moment the vehicle is in the unlocked
0:34 -position on the existing manufacturer's locking so should that be bypassed, should um the criminal get past that
0:41 -then the ultimate lock kicks in and it doesn't open up, it just opens up just a few millimeters so in order to take the
0:48 -the ultimate lock off and if you look at that key you can see that's a high security dimple type of key multi-dimple and if I turn it into the lock
0:57 -then that's it the door opens and there you go in terms of actually breaking in through this lock I can tell you it's a very strong lock you can see the video
1:05 -online of the ultimate um lock attack test which um you see a 20 minute attack with with hammers with the rest of it and I can tell you I've um I've
1:14 -attempted myself with um with diamond play discords and and this really does really does take absolute beating so
1:23 -with this lock at the moment this is actually geared up as a slam lock but the beauty is you can have it as a slam lock or a deadlock as a slam lock you
1:31 -close the door and it's locked it's automatic so that is really handy if you're a bit forgetful and you want to you or if you have someone working for
1:40 -you that's a bit forgetful but you might find a bit of a pain you do run the risk of actually leaving your keys inside the vehicle and then closing the door which
1:48 -could be a bit of a pain so we can actually set this up as a deadlock if it was set as a deadlock you can just go about your your business all day long
1:56 -and it will stay in the unlock position and then overnight you want a bit of extra security you just turn the key in
2:04 -the lock take the key out and it will be locked with the lock too so that's the ultimate deadlock or slam lock available from Sussex installations the website is
2:13 -www.sussexinstallations.co.uk thanks for watching

Transcript source: the YouTube transcript supplied for this project with minor corrections. Automated transcripts can contain recognition errors and should be checked against the original video.

Page details

Author
Jeff Scott
Publisher
Sussex Installation Team Ltd
Updated
2026-08-27
Primary focus
Foundations
Jeff Scott, founder of Sussex Installation Team Ltd
About the author

Jeff Scott — Van Security Specialist and Industry Educator

Jeff Scott is the founder of Sussex Installation Team Ltd (Sussex Installations). He has fitted vehicle-security systems since 1997, started Sussex Installations in 2003 and has specialised in van security since 2008. His work combines installation, vulnerability research, product design, UK manufacturing and long-term public education.

In 2009, Jeff published the first known YouTube video explaining mechanical key-operated van deadlocks. He has continued documenting van-security products, installation standards, vehicle vulnerabilities and changing attack methods ever since – earning his description as "The OG Van Security YouTuber."

Jeff has supported thousands of professional vehicle aftermarket technicians across the UK and beyond with access to technical information, while actively promoting higher quality installation standards through his trade community ifitstuff.com since 2006.