Architectural Quality Double Sprung Tubular Latch

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Delivery for this item is Next Day Delivery (Order By 1pm)*

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The high-quality ZTLKA Double Sprung Tubular Latch. This Tubular Latch is a great choice for both Lever Handles or Door Knobs, benefiting from many features such as neat dust-box to conceal chisel marks on the door casing, a secondary removable forend, hardened steel follower, a precision-guided latch-bolt, and heavy dual spring system. All housed in a heavy-duty rectangular steel tube for easy fitting.

The term double sprung tubular latch means the latch has a separate spring for the Latch-bolt (tongue) action, which allows a smooth, soft close to the door. The Tubular latch features a separate spring for the spindle follower, with a heavy-action return spring to ensure heavy levers are always returned to the horizontal position.

The double sprung tubular latch is an excellent choice for use with door-knobs, as it is available in lengths up to 150mm. We recommend a minimum backset of 82mm or more when using these latches with Door Knobs, to avoid any risk of scraped knuckles on the door frame! Due to this tubular latch's range of features and sizes, the ZTLKA double sprung tubular latch is our recommended latch for most projects. For more information on how to choose the correct tubular latch, and get the right size for your door, please see our handy guide on Tubular Latches right here.

Specific dead bolts are available to match this product - see related products below.

Supplied in SINGLES complete with screws, strike plate, removable forend and dust box.

Matching Rebate Kits for rebated double doors available to order.


Applicable to all
Faceplate -
60 x 26mm
Latch body - 16 x 24mm 

Handle Backset - 45mm 

Handle Backset - 57mm 

Handle Backset - 82mm 

Handle Backset - 107mm

Handle Backset - 130mm  

Finish Options


NEXT DAY DELIVERY (on orders placed before 1pm)

NOTE: If your order contains a mix of products they will be despatched altogether. The delivery will be determined by the product with the longest delivery time. For more info see delivery page.

Customer Reviews

4.44 Average 9 Reviews


Verified Buyer

Nice action and weight, happy with this.

1 month ago


Verified Buyer

Good quality, can't ask for more.

2 months ago


Verified Buyer

Good value and the handles go back in position easily

6 months ago


Verified Buyer

7 months ago

Ruth Fulton

Verified Buyer

Great products and service. Really pleased. Thku.

10 months ago


Verified Buyer

Noticeable improvement in operation over standard latches. Nicely finished and designed with plastic covers to hide screws in the cutouts and reversible latch direction to fit all handles.

11 months ago


Verified Buyer

Really solid latch, good positive spring.

1 year ago


Verified Buyer

The mechanism and operation is 5* but the casing is slightly taller than the previous standard one, and the mounting plate with 2 screw holes has a longer end which is rounded and also it protrudes further because seemingly unnecessary bends have been put in what should be a flat plate

1 year ago

Ask a question

Our experts will answer it

Is the tubular latch easy to reverse (so can be used on left or right hand doors)?

These are very easy to have reversed, all you need to do is turn the brass lounge round so its facing the way you need it.

Answered 1 year ago

Hi there
We have some unsprung internal door knobs so we need a sprung latch. I’m looking for a latch that is suitable for lower mobility, the ones we have are too difficult. These double sprung ones look good, but have you any alternatives or suggestions? The knobs will remain, just want to swap the mechanism. Thank you

Hi Jenny,

From what you have described this latch will be perfect for you.

Answered 1 year ago

Are these fire rated ?

These are fire rated for BS EN 1634-1, which states fire resistance tests for door and shutter assemblies, suitable for 30/60 minute fire doors

Answered 1 year ago