UNION C-Series 3K70 Security Detainer Sashlock

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Hi guys. My name's Darrel, I'm head of the tech team here at LocksOnline.co.uk and today we're going to have a look at the Union 3K70.

Now, a lot of people who are in the industry or if you're thinking of changing this lock, you might be surprised to learn that the one that's sitting in your door, if you're thinking of swapping it over because it's old or it's seen better days, has got 'Chubb' written on it. So one of the most important things you got to bear in mind is, this is actually an old Chubb lock.

Now, when ASSA ABLOY decided to buy Chubb, they decided, in their infinite wisdom, to get rid of the Chubb name and brand everything under the Josiah Parkes' name of Union. So even though this 3K70 is actually a Chubb lock, it's actually branded now as a Union. Let's have a look at it in a little bit more detail here. This, as far as I'm concerned is a substantial lock. There's no two questions about it, the build quality of this lock as far as I'm concerned is one that's second to none.

It's called a detainer, the mechanism built inside, works slightly different to the way that a lever lock would work. So it's a lot more secure, to try and manipulate this particular lock is much harder than what it would be of a traditional 5 lever lock. So you'll find from years gone by in the past, that these are the sort of locks that you'd find in police stations, in post offices etc., front doors to shops etc., somewhere where there was a requirement for additional security.

Now they come handed so it's important for you to know whether or not you have a left-handed door where the latch is there or you have a right-handed door. So you need to know what handing that you need, and we have information on our website, to actually explain to you how to diagnose what handing is suitable for you.

Now as you can see in this particular one, it's got a film over it but it comes in a brass finish or it comes in a silver finish. One of the discerning things that you may find, if you're thinking that this is the lock that you need to replace, is that the bolt as you can see there is quite high in comparison to the actual latch. Look, they sit directly underneath. What you wouldn't necessarily find in any other type of lock, well, certainly that I'm not aware of other than this particular detainer style of lock. Normally this bolt is down a little bit further.

It also has, I don't know if you can zoom in there for us Lee, but it's also got anti-drill pins as well in the bolt to provide that significantly more and greater security to stop people sawing. It comes as standard with two keys which is great, come with a fixing kit, with screws etc. as well and it comes with a full bodied keep as well. The full bodied keep means that the back is also encased.

So yeah, I mean, probably not as popular now these days as from, as of years gone by. There's other types of like multi-point locks or Euro type profile locks are coming onto the market. But still a pedigree lock. It's still a winner in my eyes, it's a really, really good quality, high security lock solution.

So yeah, if you want to replace it, great. If you need to fit a decent lock in your doors then you may want to consider this one.

From me, my name's Darrel, I'll just while I'm here though, let me get some measurements for you, I think it's important to get those sort of measurements. The backset, that's the distance from there to there is 44 millimetres, the PZ from there to there is 55 millimetres. The case depth, that's from there to there, the case depth okay, that's 75 millimetres. The case height that's the distance from there to there is 146 millimetres. The fore-end height, that's the height of the actual plate, the whole top front here is 200 metres, that's quite a lot. That's 200 millimetres, that's quite a lot. The width there is 25 millimetres. The bolt projects, for your information, 15 millimetres.

So there you go guys, if this is the lock for you then 3K70 is available on LocksOnline's website, we'd love to sell it to you. But if you need some more information or you want a bit more advice, listen, we're only a phone call away or pop us over an e-mail, we'd love to hear from you. We do have a Live Chat as well, so you can just come into our site and tap away, and you can chatting to me or any of the other guys during the working day.

But from me, Darrel, many thanks for taking time to look at this video, and catch up with you real soon. Take care. Bye-bye now.