Customer Service
Customer Service

Horizontal 5 Lever Sash Lock, Mortice, 57 mm Backset, Stainless Steel or Brass

  • From Only: £61.06 £53.12 + VAT

Latchbolt operated by knobs. Deadbolt operated by key.  Case: Epoxy powder coated.  Forend: Square, 2 piece. Stainless steel or brass.  Strike plate: Square box. Stainless steel or brass.  Latchbolt: Brass. Reversible.  Deadbolt: Brass, 16 mm throw.  Follower: 8 mm brass, two... Read more »

Scroll down for options, pricing & availability!

Ask a Question View Specs BUY NOW

Product Name Stock Price Tap in Req. Qty
5 Lvr Mort Sashlock Horiz 57/151mm SSS (1 Piece)
£61.06 + VAT
£53.12 + VAT
(£63.74 inc VAT)
5 Lvr Mort Sashlock Horiz 57/151mm SB (1 Piece)
£62.77 + VAT
£54.61 + VAT
(£65.53 inc VAT)

  • Latchbolt operated by knobs. Deadbolt operated by key.  
  • Case: Epoxy powder coated.  
  • Forend: Square, 2 piece. Stainless steel or brass.  
  • Strike plate: Square box. Stainless steel or brass.  
  • Latchbolt: Brass. Reversible.  
  • Deadbolt: Brass, 16 mm throw.  
  • Follower: 8 mm brass, two way action. For use with unsprung furniture.  
  • Differs: 200 differs.  
  • Keys: 2 keys included.  

Supplied with



Our product specifications and images are given in good faith but can be subject to manufacturer change without notice. Should an attribute be of essense to your purchase, please feel free to contact us first for confirmation.


Main photo of Horizontal 5 Lever Sash Lock, Mortice, 57 mm Backset, Stainless Steel or Brass

Horizontal 5 Lever Sash Lock, Mortice, 57 mm Backset, Stainless Steel or Brass

Hi, guys. My name is Darrel and I'm head of the tech team here at Locks Online. Thanks for taking some time to tune in and have a quick look at one of our product review videos. Now we're putting these short little videos together to be able to give you, our customers, the opportunity to see the products that we have to offer in hopefully a little bit more detail than you may get from just an image or a bit of descriptive text.
Today I want to show you a horizontal lock that we have on our website. It's manufactured by the company Imperial, which is a British based company, and this particular lock is what we call in the industry a horizontal lock. In other words, it's designed to fit the majority of the older style where you'd have a knob on this particular side here, and then you have the keyhole a little bit further. Some of the unique, distinct settings in regards to this is that the actual latch always sits at the bottom on this particular type, and the bolt then sits at the top, as you can see here.
Now this particular version, as you can see here via the keep, is the satin nickel, or the satin silver finish there. But it's also available in a satin brass finish as well. So if you're planning on wanting to use knobs on your door or a spring loaded knob, etc., and have an escutcheon then, this is the traditional style that you may probably see a lot of in the UK in respects to that. Now you may also find as well that there's a lot of this particular type of lock were fitted way before decimalisation, so just a few top tips. If you've got a lock that's really, really old, the chances are that the measurements may be slightly out, but it'll be the nearest that you'll be able to get these days.
So one of the advantages with this one as well, it is actually a five lever lock, which means that it can be used on external doors, and it'd be worth checking with your insurance, but normally five lever is about the least now, or the minimum that your insurance company will accept for an external rated door. Mostly it's British standard. This particular lock is just five lever, so you're 90% there, so to speak.
So whilst I have it in my hand, let's get a few measurements for you and therefore then, give you an opportunity to measure up against your particular door to see whether or not this is the lock for you. So the overall length of this particular lock is 152mm from one end to the other. The backset measurement to the follower, this is what we call a follower, this particular part here takes an 8mm spindle, that follower distance there to the centre there is around about 127, 128mm. And then the backset to the keyhole also, if I just measure that from there, you're looking there around about 57mm there.
The case height is 80 . . . I'm going to go 82mm, and the fore end width there, if I can just get that measurement on there, the fore end length is 153mm, and the fore end width there, by all means, is about 25mm. And as you can see there, it's showing the five lever security measurement on there and it's also seized up. And obviously, nice to see it's made in England. It's really, really great.
Now also, it comes with a keep here, a full body keep as well, and it also comes as well with some fixing screws. So you've got everything there that is needed. And another point I want to mention to you as well is, as you can see here, and it has these holes on either side of the follower. This is to allow you to use bolt through furniture, and the general centres there are around abut 38mm. There's a degree of tolerance on either side.
So there you go guys, just one of the products that we have available on our website, but by all means, if you need a bit more information on this or any of the products that we have, by all means, pop us over an email, use the live chat that we have or simply do it the old fashioned way and pick up the phone and give us a call. We'd love to hear from you, and more importantly, we'd love to see you as one of our customers. So from me, Darrel, and all of us at the team, thanks for taking the time to tune in, and we'll catch up with you real soon, I hope. Take care now. Bye-bye.

Ask a question about this product

** Please ensure you have checked the product description and previous Q&A's to see if your question has already been answered! **

Write a review

Note: HTML is not translated!
    Bad           Good

The LocksOnline Team


Head of the tech team, and locksmith of 25+ years


Specialises in Ironmongery & Door Furnishing


Deals with Sales on the website


Deals with Sales on the .com website


Ensures day-to-day logistics run smoothly


Keeps our workshop running smoothly


Our web developer and content manager

Close the chat box

We will phone you - Request a call back