Smith & Locke Electro Brass / Satin Chrome Tubular… (4021K)

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Smith & Locke Electro Brass / Satin Chrome Tubular Mortice Latch 76mm Case - 56mm Backset (4021K)

Reversible, heavy duty tubular mortice latch with square fore-ends. Double-sprung. For domestic or commercial use. Intumescent protection required for fire doors.

  • 1 Year Guarantee

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View all: Smith and Locke Door Latches

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Rated 2 out of 5 by from Looks good but doesn’t last Like other people’s experience, after a period of use, obviously outside of the warranty period, the catch extends beyond the retaining plate meaning it is allowed to turn preventing it retracting into the latch unless you realign it.
Date published: 2021-06-02
Rated 5 out of 5 by from Just right! Never changed a door latch before, a complete novice at DIY, and the one I needed to replace was very old, so I was a bit unsure about the the whole thing. However, the service I received was excellent, patient, knowledgeable and this latch was spot on, fitted just right with minimal adjustment to the door that even I could manage! Perfect!
Date published: 2021-04-07
Rated 4 out of 5 by from SMITH & LOCKE LATCH It seems as a good latch with good spring. Handle is coming back with no problem. Time will show how durable it is.
Date published: 2021-03-29
Rated 5 out of 5 by from It's a Mortice Lock This appears to be well made in comparison to another well known make that I've used previously. Replaces the existing lock easily with a little chiselling to fit the new outer escutcheon. Cannot rate the reliability as only installed for a few days.
Date published: 2021-03-06
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Does the latch open both clock- and anti-clockwise?

I need the latch to work either way and have a strong enough return spring as the knobs are not sprung.
Asked by: StephenB2
No it does not. Very helpful store staff showed me and tried it; the spindle will only turn one way. This would be fine for lever style handles but not if you have doorknobs and want the luxury of turning either way on both sides. The cheaper single sprung option turns both ways but my doorknobs won't allow the latch to return every time.
Answered by: StephenB2
Date published: 2020-12-03

What size hole do you need to drill in the door for it to accept the latch

Asked by: Briho
Hello Briho, A 16mm hole should be drilled in the edge of the door. Thank you for using Q&A (CW)
Answered by: Cwalm
Date published: 2021-06-10

What size of spindle does the square follower hole accept?

Asked by: MikeyBoy28
Hello MikeyBoy28, This fits an 8mm spindle. Thank you for using Q&A SW
Answered by: SWake
Date published: 2020-02-20

Is this suitable for un-sprung heavy mortice door knobs.

Can you please advise whether these latches are suitable for use with un-sprung heavy mortice door knobs?
Asked by: Juhal
Hello Juhal, This will be suitable to use with a heavy Mortice knob by returning the knob on the spring. However one concern maybe the knob maybe difficult to turn especially if a person is frail. Thank you for using Q&A SW
Answered by: SWake
Date published: 2019-08-13

Are these CE fire rated with a CE marking?

Asked by: Anonymous
Hello, Thank you for your enquiry. I think there maybe some confusion here, additional Intumescent protection is required for fire doors. Hope that helps. Thank you for using Q&A. MH
Answered by: marchington
Date published: 2019-03-26
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Backset Size (Imperial) 2¼ "
Backset Size (Metric) 56 mm
Brand Smith and Locke
Case Depth (Imperial) 3 "
Case Depth (Metric) 76 mm
Case Height 23 mm
Case Width 15 mm
Colour Electro Brass / Satin Chrome
Fire Rated (Yes/No) Fire Rated
Fire Rating Fire Rated to 30 & 60mins
Fixings Supplied Fixings Supplied
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Parent Colour Brass
Pieces in Pack/Case 1
Plate Height 65 mm
Plate Width 25 mm
Product Type Tubular Mortice Latch

Product contents

Tubular latch and fixings.