The best ABUS lock cylinders, compared.
Top pick: ABUS D6XNP 30/30 double cylinder Best value: ABUS D6XNP 30/30 double cylinder – Best value at about £25.04 when the door measures an equal 30/30 and you need the emergency function the listing states. Updated October 2026.
You usually buy an ABUS lock cylinder because a key is lost, a smart lock leaves a key inside, or you want a thumbturn. The figure that decides the order is the split, from the centre of the fixing screw to each face. This comparison lines up eleven euro barrels on amazon.co.uk: two doubles, three doubles, three thumbturns, two short cylinders and one. A listing states an emergency function, so the other side can still work if a key is left in. ABUS marks the emergency feature as no, even where a title says double entry. A 21/21 or 25/25 cylinder is for a thin door, a gate or a letterbox, not a deep uPVC leaf. The [ABUS lock cylinder buying guide](/hub/door-and-window-security/abus-lock-cylinder/sub/abus-lock-cylinder-buying-guide) walks through family, then split, then whether a street door needs a stated three-star cylinder. Prices and stars below are the amazon.co.uk lines. The families on the page are, a short pair, and one. You are usually replacing a lost-key barrel or adding a turn so a key is not left in the door. The logo does not tell you the size.
You usually buy an ABUS lock cylinder because a key is lost, a smart lock leaves a key inside, or you want a thumbturn. The figure that decides the order is the split, from the centre of the fixing screw to each face.
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Personal buying guide
Question 1 of 2
What are you replacing?
The ABUS D6XNP 30/30 is a euro double cylinder of 60 mm overall, priced at £25.04, with five reversible keys and a code card. The listing states an emergency function, so either side still works if a key is already in the other side. amazon.co.uk shows 4.6 from 8,357 reviews, and that figure is a parent count shared with the 30/35 D6X rather than a tally of this split alone. UK notes in the file mention use with a smart lock when a key is left inside, a welded gate, and a fit described as perfect. One UK review calls the keys slightly thin and does not check the security claim in detail. The bullets mention special pins against picking, and they do not state TS 007 or Sold Secure. It is the best value in this set when your measured split is an equal 30/30 and you need that stated clutch.
Pros
Cons
Best for: A measured 30/30 euro door where a key may be left in one side, including with a smart lock, and you do not need a stated three-star mark.
Less suitable: A street door that needs TS 007 or Sold Secure printed on the cylinder, or a door that is not an equal 30/30.
Specifications
Common questions
What size is this ABUS cylinder?
The bullets state 30 mm / 30 mm, so 60 mm overall from the two sides. It is a euro double cylinder, not a thumbturn.
Can you open it if a key is left in the other side?
Yes, on this listing. The bullets state the emergency function: the cylinder can be operated from either side if a key is inserted on the other side.
How many keys and is there a code card?
The bullets state 5 reversible dimple keys and a code card for reordering. The included-components line only says Key.
The ABUS D6XNP 30/35 is a euro double of 65 mm overall at £25.88, with unequal sides, five keys and a security card. The bullets state an emergency function, so the outside still opens if the key is in the inside lock. amazon.co.uk shows 4.6 from 8,357 reviews, the same parent line as the 30/30, so that count is not reviews of this split alone. Five UK texts in the first 50 mention an Aqara smart lock that still opened with a key left inside, a solid lock in all weathers, a welded gate, and a fit called perfect. Other reviews found the length a few millimetres off, a cam that needed filing, and one pack that arrived open with the code card missing. The bullets do not state TS 007 or Sold Secure. You need to mark which face is the 35 mm side before you order it against a measured door.
Pros
Cons
Best for: A measured door that is 30 mm one side and 35 mm the other, where a key may stay inside.
Less suitable: An equal split, a thumbturn, or a street door that needs a stated three-star or Diamond cylinder.
Specifications
Common questions
What size is this ABUS cylinder?
The bullets state a length of 30 / 35, so 65 mm from the two sides. It is a euro double cylinder, not a thumbturn, and the two sides are not equal.
Can you open it if a key is left in the other side?
Yes, on this listing. The bullets state an emergency function: if the key is in the inside lock, it can be opened from the outside. A UK review used that with an Aqara smart lock.
How many keys and is there a code card?
The bullets state 5 keys and a security card. The included-components line only says Key. One review arrived open with the code card missing.
The ABUS KD6PS Z50/K30 is a euro thumbturn of 80 mm overall at £30.19, with the knob for locking from inside and five reversible keys plus a code card. amazon.co.uk shows 4.6 from 1,039 reviews, a count on this ASIN rather than a shared parent line. Reviews describe a fit of a few minutes and an inside turn that children could use without hunting for a key. The bullets state a programmed break, a steel rod and four mushroom counter-pins, and they do not state an emergency function. One review says an outside key still opened the door after it was locked from inside, which is a review rather than a bullet. Keys are called long, one Escurra fit needed a filed cam and a larger rose, and one unit was sold without the code card so copies could not be cut. It is the top pick in this set on that star line and its own review count, and the pre-snap wording is still not a TS 007 mark.
Pros
Cons
Best for: A measured door that is 50 mm on the key side and 30 mm on the knob side, with the turn indoors and out of reach.
Less suitable: A door whose glass or letterbox can reach the knob, or a buyer who needs the clutch written on the listing.
Specifications
Common questions
Which side is the knob?
The title is Z50/K30 and the item type is Button Cylinder. The knob is for locking from inside without a key. Put that side indoors.
Is the pre-snap line a UK three-star mark?
No. The bullets state a programmed breakage system, described as pre-snap or anti-snap. They do not state TS 007 or Sold Secure.
How many keys and is there a code card?
The included-components line says 5 reversible keys and a code card. One review was sold without the card, so copies could not be cut.
The ABUS C50TI ST 25/25 is a short euro cylinder of 50 mm overall at £18.19, sold keyed alike with three keys. amazon.co.uk shows 4.6 from 19 reviews, and the six texts in the file were all written in Germany, so they are not a UK sample. The listing names thin entrance doors, glass doors and metal doors. Reviews describe a garden door that arrived without a cylinder and a garden gate that had held up in the weather so far. One review called it a bit wobbly, and another could not find matching key blanks in two DIY stores. There is no code card, no emergency function and no TS 007 or Sold Secure line. Keyed alike on item 95036 does not mean these keys match another ASIN in this comparison.
Pros
Cons
Best for: A thin garden door or gate whose old cylinder is 25/25 and whose three keys only need to match this cylinder.
Less suitable: A deep entrance door, a buyer who needs UK review texts, or a house that must share keys with another listing.
Specifications
Common questions
What size is this short cylinder?
The model is C50TIST 25/25, so 50 mm from the two sides. The bullets say it is for thin entrance doors, glass doors and metal doors.
Are the three keys keyed alike?
The box-contents line says the cylinder is keyed alike, item 95036, with three keys. It does not say those keys match another ASIN in this set. No code card is stated.
Is there an emergency function?
No. The bullets do not state one, and there is no thumbturn.
The ABUS KD6XNP Z30/K30 is a euro thumbturn of 60 mm overall at £36.74, with a key on one side and a knob on the other. The listing states an emergency function, so an outside key still works after the door is locked from inside, and it includes five keys and a code card. amazon.co.uk shows 4.5 from 371 reviews. Reviewers use the knob so a key is not left in a flat entrance door, and several put the swap at about 5 to 10 minutes. The knob sits off centre, so a standard round rose may not cover it, and the shape is called hard to turn. After months or years, several reviews say the key spins and no longer throws the cam. There is no anti-snap, TS 007 or Sold Secure line, and the details field prints the material as canvas, which conflicts with a metal cylinder.
Pros
Cons
Best for: A measured 30/30 door where the turn stays out of reach from outside and you want the emergency function stated on the listing.
Less suitable: A door whose glass or letterbox can reach the knob, or a handle whose round rose must hide an off-centre turn.
Specifications
Common questions
Does this cylinder have a thumbturn?
Yes. It is a euro thumbturn, split Z30/K30, with a key on one side and a knob on the other.
Can a key from outside still open it after it was locked inside?
Yes, on this listing. The emergency function is stated: a key from outside still works if the inside is locked.
Will a standard rose cover the knob?
Not always. Reviewers bought a separate rose because the knob is not central. The listing does not state a rose in the box.
The ABUS KD6PSN Z35/K35 is a euro thumbturn of 70 mm overall at £33.01, with the knob on the K side so you lock from inside without leaving a key in the door. amazon.co.uk shows 4.5 from 209 reviews, and the one UK text in the first 50 says it was easy to use and easy to fit. The bullets state a programmed break, a steel shaft, four mushroom counter-pins, five reversible keys and a code card. They do not use the emergency-function sentence, so a clutch while a key is inserted is not stated. Reviews call the keys very large and the knob small, and say it needs two turns. Opened packs, a missing code card and a missing fixing screw appear in the sample, and one review filed the cam so an older lock would throw both ways. One review says it held up on a gate for over a year, and the pre-snap line is still not TS 007.
Pros
Cons
Best for: A measured 35/35 door where the knob stays inside and out of reach, and you want the pre-snap wording without needing a stated clutch.
Less suitable: A door that needs an outside key to work with something left in the lock, or a street door that needs a visible three-star mark.
Specifications
Common questions
Which side is the knob?
The K side is the knob and goes inside. The key side is Z35 and the knob side is K35.
Is an emergency function stated?
The bullets do not use the emergency-function sentence. The inside is a button, so you are not leaving a key in the lock. Whether it clutches while a key is inserted is n/a
Is the pre-snap line a TS 007 mark?
No. Programmed break is stated, with a steel shaft and mushroom counter-pins. The bullets do not state TS 007 or Sold Secure.
The ABUS TI11 ST 21/21 is a short euro cylinder of about 42 mm overall at £14.93, sold as different locking with three keys and no code card stated. amazon.co.uk shows 4.5 from 48 reviews. The listing points it at thin entrance doors, glass doors and metal doors so the face does not stand proud. A UK review dated 20 September 2026 says it was an easy fit at the same size as the original in a new home. Another review says it suits a letterbox and not a front door, and two reviews had to shorten a cam that was longer than the lock it replaced. One cylinder stopped turning after two months and was drilled out to remove it. There is no emergency function and no TS 007 or Sold Secure line, and the details field says glass, which conflicts with the metal cylinder the bullets describe.
Pros
Cons
Best for: A thin gate, metal door or glass door whose old cylinder is 21/21 and does not need to match other keys in the house.
Less suitable: A deep uPVC entrance door, a front door, or a lock whose cam must match without filing.
Specifications
Common questions
What length is this short cylinder?
The model is 21/21, about 42 mm overall. The listing points it at thin entrance doors, glass doors and metal doors so the face does not stand proud.
Will it share keys with another cylinder?
Not as sold. The title and a bullet say different locking. It does not share keys with another cylinder unless you order it that way.
Is the cam the same length as the old one?
Not always. Two reviews had to shorten a cam that was longer than the lock it replaced. The listing does not state the cam length.
The ABUS D6PSN 35/65 is a euro double of 100 mm overall at £28.91, with a programmed break, five reversible keys and a code card stated in the bullets. amazon.co.uk shows 4.4 from 513 reviews. A UK review says it fitted, the install was quick, and the old fixing screw was reused because the new one was missing. The title says double entry, and that UK review says the outside key will not turn if a key is already on the inside. Other reviews say the same, which also makes it a poor match for a motorised lock that leaves a key in. One of five keys was described as deformed, and one carton arrived open so the code was visible. Pre-snap is stated, and TS 007 or Sold Secure is not. The 35 mm and 65 mm sides are unequal, so you measure which face is outside.
Pros
Cons
Best for: A measured door that is 35 mm one side and 65 mm the other, used as a normal key both sides, not as a clutch.
Less suitable: A motorised lock that leaves a key inside, or a buyer reading double entry as an emergency function.
Specifications
Common questions
Is this a thumbturn cylinder?
No. It is a euro double cylinder in a 35/65 split. A button-assembly line appears in a shared bullet, not in the title.
Does double entry mean you can open it with a key left in?
Do not rely on the title. A UK review ordered it so someone could get in when a key was left inside, and says the outside key will not turn.
How many keys are in the box?
The bullets and the included-components line say 5 reversible keys and a code card. A UK review says the fixing screw was missing and the old one was reused.
The ABUS D6PSN 50/50 is a euro double of 100 mm overall at £25.22, with a nickel-plated brass housing and a hardened-steel line in the details field. The bullets state a programmed break, a steel shaft, mushroom counter-pins and five reversible keys plus a code card. amazon.co.uk shows 4.4 from 106 reviews, and the 30 texts in the file include no UK reviews. The title says double entry, but a review says a key on one side stops the other key going in and that the cylinder is not a clutch. Two reviews say four keys arrived rather than five, and one unit sold as new had no fixing screw. Reviews that did receive a complete pack describe a straightforward swap on a French door or a patio door. Pre-snap on this listing is not a TS 007 or Sold Secure line.
Pros
Cons
Best for: A measured 50/50 door where you will not leave a key in one side and you are buying the pre-snap wording as printed, not a UK star.
Less suitable: Anyone who needs the outside key to work while a key stays inside, or who is treating pre-snap as TS 007.
Specifications
Common questions
Is this a thumbturn cylinder?
No. It is a euro double cylinder in an equal 50/50 split. A button-assembly line appears in a shared bullet, not in the title.
Does double entry mean you can open it with a key left in?
Do not rely on the title. It says double entry. A review says if a key is in one side the other key will not go in, and that it is not a clutch.
How many keys are in the box?
The bullets say 5 reversible keys and a code card. Two reviews say 4 keys arrived. One review says a unit sold as new had no fixing screw.
The ABUS XP20SN is a euro double at £82.28, the highest price in this set, with a security card and three keys named in the item type. amazon.co.uk shows 4.3 from 866 reviews, and the first 50 texts include no UK reviews. The title says 10/30 and the model number says XP20SN 35/35, part 73727, so neither length is settled until you measure the cylinder in the box. The bullets state an emergency function, and reviews describe opening from outside with a key left inside. They also cite SKG**, ABUS GPS 9, DIN EN 1303 and a pen-in-pen anti-impact line, none of which is a TS 007 or Sold Secure mark. Several reviews report a cut security seal, missing keys or a missing card, and extra keys are described as expensive because they are cut from the card. One return received a unit with no button and a long cam.
Pros
Cons
Best for: Only after you measure the cylinder in the parcel and it matches the door, and you want the stated clutch plus the security card.
Less suitable: A buyer ordering against either printed length without measuring, or a street door that needs a TS 007 mark this listing does not state.
Specifications
Common questions
Is this cylinder 10/30 or 35/35?
The title says 10/30. The model number and the item type name say XP20SN 35/35, part 73727. Do not treat either figure as settled until you measure the cylinder in the box.
Can you open it if a key is left inside?
The bullets state an emergency function, in broken English, when a key is inserted on both sides. Reviews describe opening from outside with a key left inside.
Is SKG** the same as a UK three-star Kitemark?
No. The bullets cite SKG**, ABUS GPS 9 and DIN EN 1303. They do not state TS 007 or Sold Secure.
The ABUS D6PS 45/45 is listed at £10.18 as a 7-piece set, and the model is a 90 mm euro double. amazon.co.uk shows 4.3 from 39 reviews, and the ten texts in the file include no UK reviews. A review describes one lock, a keycard and five keys, which is not seven cylinders. The bullets do not state an emergency function, and reviews say the inside key has to come out before the outside key will turn. One review found no code card, and another found the card between the cardboard folds rather than in the printed slot. The printed security lines are six locking elements and steel shafts on pin 2, with no pre-snap sentence and no TS 007 line. It is the lowest shelf price in this set, and the box contents are the least settled.
Pros
Cons
Best for: A measured 45/45 door where the key will not be left in, and you can check the card is in the box before you fit it.
Less suitable: A smart lock that leaves a key inside, a buyer who expects seven cylinders, or a street door that needs a stated star rating.
Specifications
Common questions
Is the 7-piece set seven cylinders?
The title and the piece count say 7. A review describes one lock, a keycard and five keys. The listing is ranked in Lock Cylinders and the model is D6PS 45/45.
Does it open if a key is left inside?
The bullets do not state an emergency function. Reviews say it is not a clutch: the inside key has to come out before the outside key will turn.
Is a code card in the box?
The bullets say it is delivered with a code card. One review found no card. Another found the card between the cardboard folds, not in the printed slot.
We compared 11 ABUS euro cylinders on amazon.co.uk and looked at 38 cylinders for this comparison. Scores follow the published star line and review count on each listing. They are not a laboratory test. Family limits come from ABUS pages, and the UK mark comes from West Yorkshire Police, Sold Secure and BSI certificate KM 778080. The top pick is the KD6PS Z50/K30 because that ASIN shows 4.6 from 1,039 reviews of its own, with the knob inside, at about £30.19. The best value is the D6XNP 30/30 because the listing states the emergency function at about £25.04 when the door is an equal 30/30. The lowest shelf price, the D6PS 45/45 at about £10.18, is not that pick: reviews say it is not a clutch, and the box contents are the least settled.
Measured split
30%The split from the fixing screw to each face decides whether the cylinder finishes flush. Overall length alone does not separate 50/50 from 35/65, and the outside face should stay within 3 mm.
Family and UK security mark
25%D6XNP, D6PS, the short Titalium pair and the XP20SN are different products. GPS numbers, SKG** and a pre-snap line are not TS 007 or Sold Secure Diamond.
Emergency function
20%A stated clutch matters when a key may be left inside or a smart lock needs that. A D6PS title that says double entry is not treated as that function.
Keys and card
15%Five keys are spares for that cylinder, not a keyed-alike house. A code card and a security card are not the same thing, and an opened pack with no card is a fault.
amazon.co.uk rating
10%Stars and review counts are taken from the amazon.co.uk line for that ASIN. A shared parent count, as on the two D6XNP sizes, is not treated as reviews of one split alone.
Start with the door you have, not with the lowest price. Measure both sides of the old cylinder, decide whether a key will be left in, and only then match a family in this set. A street-facing door that needs a stated three-star or Diamond cylinder is a different product from these eleven listings. The notes below follow amazon.co.uk prices and review lines, ABUS published family data, and UK mark advice from West Yorkshire Police, Sold Secure and BSI. Nothing here is a laboratory test.
An ABUS lock cylinder in this comparison is a euro profile barrel: a double with a key each side, a thumbturn with the knob inside, or a short cylinder for a thin door. The families on the page are D6XNP, D6PS, a short Titalium pair, and one XP20SN. You are usually replacing a lost-key barrel or adding a turn so a key is not left in the door. The logo does not tell you the size. The split does.
50/50 and 35/65 are both 100 mm. 30/35 is not the same door as 30/30. Write the split from the screw to each face, and mark which face is outside.
ABUS marks the D6PS emergency feature as no. Reviews on the 50/50 and the 35/65 say a key on one side blocks the other. Use a D6XNP listing if a key may be left in.
21/21 and 25/25 are for a thin door, a gate, glass or a letterbox. In a deep uPVC leaf the faces will not finish flush, and the outside can stand proud of the 3 mm limit.
Measure from the centre of the fixing screw to each face and order that pair of numbers. In this set, 30/30 is 60 mm overall and 30/35 is 65 mm with unequal sides. 45/45 is 90 mm. 50/50 and 35/65 are both 100 mm, so the overall length does not tell them apart. Z30/K30 is 60 mm, Z35/K35 is 70 mm and Z50/K30 is 80 mm. The short pair is 21/21, about 42 mm, or 25/25 at 50 mm. ABUS says the cylinder should finish flush.
Pick the family after the split. D6XNP listings state an emergency function: the other side can still work if a key is left in. That is the family for a smart lock that leaves a key inside. D6PS is different. ABUS marks the emergency feature as no. Titles that say double entry on the 50/50 and the 35/65 are contradicted by reviews that say a key on one side blocks the other. Pre-snap, a steel shaft and mushroom pins are printed on several D6PS listings.
Three typical situations, each with a recommendation from this comparison.
If a key may stay inside, or a smart lock needs that, the D6XNP 30/30 states the emergency function at about £25.04. It is the best value when the door is an equal 30/30. The 30/35 is the same family with unequal sides. A D6PS title that says double entry is not this clutch.
The KD6PS Z50/K30 is the top pick: 4.6 from 1,039 reviews on this ASIN, about £30.19, with the knob inside so a key is not left in the door. The turn has to stay out of reach of glass and the letterbox. The bullets do not state an emergency function. The KD6XNP does, on a 30/30 split.
The TI11 21/21 at about £14.93 is the short cylinder for a thin metal door, glass door, gate or letterbox that already measures 21/21. It does not state an emergency function. The C50TI 25/25 is the other short length. Neither belongs in a deep uPVC entrance door.
Match the split first, then the family. The top pick is the ABUS KD6PS Z50/K30 thumbturn at about £30.19, on 4.6 from 1,039 reviews of that ASIN, when the knob can stay inside and out of reach. The best value is the ABUS D6XNP 30/30 at about £25.04, when the door is an equal 30/30 and you need the emergency function the listing states. None of the eleven cylinders states TS 007 or Sold Secure Diamond. A street door that needs those marks is looking at the X60 or another stated cylinder, not a GPS number in this set.
ABUS D6XNP 30/30 double cylinder
Best value at about £25.04 when the door measures an equal 30/30 and you need the emergency function the listing states.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public sources from the research digest, last checked on 21 October 2026. Prices and review counts are amazon.co.uk listings, not a laboratory test.
Expert source (DIY & tools): Charlie White (Charlie DIYte) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the amazon.co.uk listings. We did not laboratory-test these cylinders, and a commission does not change which model is the top pick or the best value.
