The best padlocks, compared.
Top pick: Diyife 52 mm combination padlock – 4.7 from 1,993 reviews, a stated 52 mm body and an 8 mm shackle, ahead of the NovLock on sample size. Best value: GRIFEMA 4-digit padlock – Lowest price at 4.4 or above with at least 1,000 reviews: about £3.78 from 10,461 reviews. The shackle diameter is not stated. Updated October 2026.
A padlock is a portable lock for a hasp, a chain, a locker or a toolbox. On amazon.co.uk this set is mostly a 4-digit combination or a small keyed lock, not a graded closed-shackle lock. Typical jobs are a shed, a gate, a gym or school locker, or a suitcase. A typical listing does not state a BS EN 12320 grade or a Sold Secure logo, so heavy duty and weatherproof stay seller wording. The [padlock buying guide](/hub/door-and-window-security/padlock/sub/padlock-buying-guide) puts hasp, grade and mechanism in that order. A 32 mm suitcase lock and a 50 mm shed lock are not substitutes. Name the job first: locker, shed or gate, chain, suitcase, or container. Measure the hasp or the chain before you trust a title. You need the shackle diameter, the horizontal clearance and the vertical clearance. Titles here disagree with their own size fields.
A padlock is a portable lock for a hasp, a chain, a locker or a toolbox. On amazon.co.uk this set is mostly a 4-digit combination or a small keyed lock, not a graded closed-shackle lock.
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Personal buying guide
Question 1 of 2
Where will the padlock sit?
Across 1,993 amazon.co.uk reviews at 4.7, the Diyife TAL117B is a 52 mm 4-digit combination lock with an 8 mm hardened 304 stainless shackle, listed at £13.99. Buyers use the chunky body on sheds and gates, and they set the code without a key to lose. Wheels are described as turning smoothly, and one shed review covered about two months without a fault. The body is heavy to carry, at 270–280 g, the large size is the limit on a tight hasp, and a second dimensions line of 51 × 51 × 51 mm disagrees with the 52 × 26 × 84.5 mm bullet. Several reviews still treat weather and attack strength as unproven, and one buyer advises a drop of oil before winter. The first 50 UK review blocks do not repeat a snapped shackle, a seized code or a rust failure. The listing’s 180-hour salt-spray line is the seller’s claim, and no BS EN 12320 grade is printed.
Pros
Cons
Best for: A shed or gate hasp that takes an 8 mm shackle and this 52 mm body.
Less suitable: A tight hasp hole, or a lock you need to carry often.
Specifications
Common questions
How thick is the shackle?
The listing states an 8 mm hardened 304 stainless shackle on a 52 x 26 x 84.5 mm body.
Does it need a key?
No. It is a resettable 4-digit combination with a centre button. The listing claims 10,000 codes.
Is a security grade stated?
No BS EN 12320 or Sold Secure grade is in the captured listing. The 180-hour salt-spray line is the seller’s corrosion claim.
The NovLock NLCL003 is a black 4-digit lock at £14.99, about 54 × 27 × 85 mm and 271 g, with an 8 mm hardened shackle that locks on both heels. Across 883 amazon.co.uk reviews it sits at 4.7, and buyers call it chunky and easy to set. The push-button opening is preferred to a pull-open lock, and some find the numbers easy to read. Early rain on a shed and a gate left no surface rust in those comments, which cover weeks rather than a full winter. Dials go stiff when the lock is cold or wet. One UK review said the body was too thick for a shed hole, so the 8 mm shackle alone does not guarantee a fit. The combination sits on the bottom, which some older users find harder to read.
Pros
Cons
Best for: A shed or gate where the 54 mm body clears the hole and you can read the numbers on the bottom.
Less suitable: Cold or wet weather if the dials stiffen, or a narrow shed hole the body will not enter.
Specifications
Common questions
Where is the code?
The listing puts the combination on the bottom of the lock and includes instructions.
Will it fit every shed hasp?
One UK review said the body was too thick for a shed hole. Measure the hasp before you rely on the 8 mm shackle alone.
Is a security grade stated?
No. The outdoor line is a seller salt-spray claim, not a BS EN 12320 grade.
The SharkByte listing is two black 4-digit locks at £7.79, each body about 80 × 43 × 20 mm, with the pair weighing 230 g. Across 860 amazon.co.uk reviews it sits at 4.5. Buyers use them on gym and school lockers, find a new code easy to set, and some prefer the side number window to face dials. Reviewers who received a red lock said the colour helped find a locker; this captured variant is the black 2-pack. The numbers are hard to read without glasses, including at a pool, and one buyer returned a lock for that reason. The instruction leaflet is described as very small print, and reviewers do not trust the locks with high-value items. One bullet names TECHGEAR while the brand field is SharkByte, and the shackle diameter is not stated.
Pros
Cons
Best for: Two gym or school lockers, if you can read the side numbers.
Less suitable: High-value storage, or a buyer who cannot read the low-contrast wheels.
Specifications
Common questions
How many locks are in the pack?
The listing says two combination padlocks.
Are the numbers easy to read?
Reviews split. Some prefer the side window. Others could not read the numbers without glasses and one buyer returned the lock for that reason.
Is it an app lock?
The attribute line says App. The bullets describe a 4-digit code only, so the app line is not used.
The pink NAGE is a 44 × 22 × 80 mm 4-digit lock at £4.99 and 120 g, with a side window and a hardened steel shackle of unstated diameter. Across 418 amazon.co.uk reviews it sits at 4.5, and gym and school locker buyers treat it as good for the money. One review kept it working for six months at three visits a week, with wheels that feel positive and a metal body. Colours help tell lockers apart. The numbers are hard to see without glasses, and the instructions are tricky when you set the code. One unit arrived with a reset that would not push down far enough, so the code could not be changed. A longer review limits it to casual use and says it is not for a bike, a lock-up or a determined attack.
Pros
Cons
Best for: A gym or school locker you open a few times a week, where a colour marks the door.
Less suitable: A bike, a lock-up, or a unit whose reset will not push down.
Specifications
Common questions
What is it bought for in the reviews?
Gym and school lockers. One review kept it working for six months at three visits a week.
Can the code be set?
Usually yes. One review said the reset would not push down far enough, so that unit could not take a new code.
Is a shackle diameter stated?
No. A reviewer chose it because the shackle fitted their gym locker, which is a measurement you still have to make.
At £3.78 and 120 g, the GRIFEMA GA1001-1 is a small black 4-digit lock, 79 × 43 × 22 mm, with a side window and a hardened steel shackle whose diameter is not stated. Across 10,461 amazon.co.uk reviews it sits at 4.4, and buyers call it easy to set and solid for the price. Gym-locker use is a common job, and one review puts the size at about 3 inches. Outdoors, reviewers say it needs regular lubricant, and a squeak when the numbers turn led one buyer to read the build as poor. Two successive locks stopped opening after about six months. Several 4-star reviews had not yet seen a winter. On the captured page it ranks 93 in DIY & Tools and 2 in Combination Padlocks.
Pros
Cons
Best for: A gym locker or a cupboard at this price, if you can oil it and live with the six-month failures in the reviews.
Less suitable: A lock left outside through winter, or a hasp that needs a stated shackle diameter.
Specifications
Common questions
How many codes does it have?
The listing says 10,000 combinations on four digits, with a manual in the box.
Is the shackle diameter given?
No. The saved listing says a hardened steel shackle and a 79 x 43 x 22 mm body, and stops there.
Do reviews mention outdoor use?
Yes. One review says lubricate it regularly outside, and two locks were reported to stop opening after about six months.
The SEPOX pair is two keyed-alike laminated padlocks at £9.97, with three keys that open both, and a components line that states a 46.5 mm shackle. Across 1,621 amazon.co.uk reviews it sits at 4.4, and keyed alike is the reason buyers pick it. The long clasp is used on gates and similar gaps, and one school-locker review reported no trouble. Buyers call the locks strong and easy to open once the key is in, though one key was stiff to engage at first. The hoop rusts quickly in UK rain even while the lock still works, so the weatherproof line is early-days only in several reviews. At least one buyer says the heavy-duty title overstates the feel, and some plan to spend more when these wear out. The title says 58 mm, the model name says 40 mm, and the item dimensions are 40 × 22 × 91 mm, so you still need to measure the hasp.
Pros
Cons
Best for: A gate and a second hasp that need the same key, once you have measured the clasp.
Less suitable: A hoop left in the rain, or a buyer who needs one agreed body size on the listing.
Specifications
Common questions
Will one key open both locks?
The included-components line says two locks with a 46.5 mm shackle and three keys, sold as keyed alike.
Which size figure should you trust?
The title says 58 mm, the model name says 40 mm, and the components line says a 46.5 mm shackle. Measure the hasp rather than pick one of those numbers.
Do reviews mention rust?
Yes. One UK review says the hoop rusts quickly in the rain even though the lock still worked.
The Squire CP50 is a 50 × 26 × 95 mm black 4-digit lock at £20.50 and 200 g, with a push button and a hardened steel shackle of unstated diameter. Across 104 amazon.co.uk reviews it sits at 4.4. Buyers who already use Squire stay with the brand, and gate users call it strong and easy to set when it fits. The plastic push-button cap can break if the lock is dropped, and one shackle was too large for a storage-box hole. It goes stiff in the weather, and reviewers say it is not waterproof despite the weather-resistant line. A dial stopped moving after a few months, and another lock failed just after 12 months. One code changed itself while the lock was shut, and that body was smashed off with little force.
Pros
Cons
Best for: A gate or shed hasp the 50 mm body actually fits, if you can accept weather stiffness.
Less suitable: A lock that gets dropped, a tight storage-box hole, or a full year outside without checking the dials.
Specifications
Common questions
Is the shackle diameter on this listing?
No. This saved listing says a hardened steel shackle and a 50 x 26 x 95 mm body, and does not give a diameter.
Where does the listing say it was made?
Country of origin is China. A review that says made in Britain is not the origin field.
What failed in the reviews?
A button cap broke when a lock was dropped, dials stiffened or stopped, and one code changed while the lock was shut.
The xdg pair is two small gold keyed locks at £6.25, each about 32 × 14 × 50 mm, with three keys that open only the matching lock. Across 197 amazon.co.uk reviews it sits at 4.3. Buyers use them on lockers, cadet kit and luggage, and some say a light gate or a spare shed lock is enough. The separate key sets are the practical point of the pack. Outdoors, one lock rusted within about a month and another went stiff on a gate after about a week. The keys are called flimsy, and one buyer said bolt croppers would defeat the lock. The listing’s outdoor line is a seller claim that this review sample does not support for a wet gate.
Pros
Cons
Best for: Luggage, a locker or a light indoor job where each lock keeps its own keys.
Less suitable: A wet gate, or a hasp you would not want bolt croppers to open.
Specifications
Common questions
Does one key open both locks?
No. The listing says each key opens the matching lock, with three keys per lock.
How small is the body?
The item dimensions are 32 x 14 x 50 mm, and the highlight calls the height 32 mm.
What happens outside?
Reviews report rust within about a month and a lock that went stiff on a gate after about a week.
The YIKI is a single keyed lock at £3.90 and 90 g, with a stated 38 mm body width, 70 mm total height, a 5 mm shackle and two keys. The amazon.co.uk listing shows 4.0 from 53 reviews, and the saved listing has fewer than 50 UK review blocks. Short comments say it does a light job, and some call it strong enough for a back gate at this price. The keys are very small and thin, hard to insert, and some stick in the keyway. One review says the gold finish is paint on a casting, not the brushed brass the photos suggested. The same sample calls the quality poor and the security low. Item dimensions of 10 × 10 × 1 cm conflict with the 38 mm bullet, so the body size in the bullet is the figure to use.
Pros
Cons
Best for: A low-price light gate or cupboard, if you can live with tiny keys.
Less suitable: A buyer who wanted brushed brass, or a keyway that already sticks.
Specifications
Common questions
What is the shackle diameter?
The bullet says 5 mm, with a 38 mm body width and 70 mm total height.
How many keys?
Two keys with one padlock. The piece count of 3 matches that, not three locks.
What do reviews say about the keys?
They are very small and thin, and some stick in the keyway. One review says the gold body is paint, not brushed brass.
The Squire CP40 is a 90 g black 4-digit lock, about 77 × 40 × 22 mm, listed at £13.00 for gym lockers, bags and cupboards. Across 230 amazon.co.uk reviews it sits at 3.9. Buyers who checked the size call it the right locker lock, and they prefer the push button to a pull-open shackle when the code is set. The code is easy to set when the reset screw works, and buyers call it reasonable value from a known brand. The screw arrived already stripped on one unit, so that code could not be changed. Digits are hard to see in low light because the spindles glare, and the code must line up exactly or the lock will not open. It needs oil and can stay stiff on the correct code, and the listing itself points a gate or a shed at a larger Squire.
Pros
Cons
Best for: A gym locker or a cupboard, when the reset screw turns and you have checked the size.
Less suitable: A shed or a gate, low light, or a code that sits slightly off the line.
Specifications
Common questions
Is this the shed model?
The listing says lockers, bags and cupboards, and tells you to pick a larger Squire for gates and sheds.
Why do reviews mention a screw?
The code is set with a small screw. One review found that screw already stripped in the box.
Are the numbers easy to see?
One review could not read them in low light because the spindles glare.
The Solvica listing is a small gold keyed padlock at £4.99, advertised as a pair, with 3.7 from 10 amazon.co.uk reviews. The saved listing has six UK review blocks. The short positive comments call it sturdy for the price and say it still fitted when it was smaller than expected. Three separate reviews say only one padlock arrived against the two-pack title. The included-components field says NO, which does not match a title that promises two locks and spare keys. Item dimensions of 10 × 10 × 10 mm conflict with a 150 g weight, so neither the size nor the shackle diameter is usable. With six texts, rust and key failures are simply not described.
Pros
Cons
Best for: A single small keyed lock, if one lock in the box is enough.
Less suitable: A buyer counting on the second lock in the title, or a hasp that needs a stated size.
Specifications
Common questions
Are there two locks in the box?
The title says two. Three UK reviews say only one padlock was delivered.
Is a size given that you can trust?
Item dimensions of 10 x 10 x 10 mm conflict with a 150 g weight, so the size is not stated.
How many reviews are behind the stars?
The listing shows 3.7 from 10 reviews, and the saved listing has six UK review blocks.
The JMIATRY pair is two 74 mm keyed locks at £20.99, with a seller claim of a 12 mm shackle and a pin-tumbler cylinder described as anti-drill. The listing shows 3.2 from 13 reviews, and the saved listing has six UK blocks. Those texts call the locks heavy and strong, and one longer review used them on a back gate and on ladders after the barrels were oiled. The cylinders arrived dry, and oil had to be worked in before they operated easily. Two buyers expected one key for both locks and received separate keys instead. One lock arrived used, with dents and scratches, and the edges were sharp where they had not been deburred. A 1 g weight on the attribute line is not credible for this body, and 13 reviews are too thin to treat the 12 mm shackle as a tested grade.
Pros
Cons
Best for: A container or gate hasp that needs the stated thick shackle, after you oil the barrel and check the finish.
Less suitable: A keyed-alike pair, or a choice that depends on this 13-review sample.
Specifications
Common questions
How thick is the shackle?
The listing says 12 mm on a 74 mm body. That figure is the seller’s, not a graded test.
Do both locks share a key?
Two UK reviews say no. Each lock came with its own keys.
How solid is the review sample?
3.2 from 13 reviews. The saved listing has six UK blocks, including a used-looking lock and sharp edges.
Twelve amazon.co.uk padlock listings were scored from the stored pages and the review notes already on file. There is no laboratory test. The score is the star rating times 20, so 4.7 is 94 and 3.2 is 64. Review count does not add points. The tie at 4.7 goes to the listing with more reviews and a stated body around 50 mm with an 8 mm shackle, which is the Diyife. Best value is the lowest price among listings at 4.4 or above with at least 1,000 reviews, which is the GRIFEMA at about £3.78. A salt-spray line, the word weatherproof, or an anti-drill claim is not a BS EN 12320 grade and not Sold Secure. Every CEN grade in this set is unstated. Conflicting size lines stay conflicts. The weights below sum to 100. They show that emphasis. They are not a second formula.
Amazon star rating
60%The score is the amazon.co.uk star rating times 20. A 4.7 is 94. A 3.2 is 64. Review count does not add points to that line.
Review sample
15%Review count splits a tie at the same star line. Best value also needs at least 1,000 reviews. A short sample cannot take either place.
Stated body and shackle
15%At a tie, the listing needs a stated body around 50 mm and an 8 mm shackle. Conflicting size lines stay conflicts. They do not become a measured body.
Price at the value line
10%Best value is the lowest price among listings at 4.4 or above with at least 1,000 reviews. A lower star line, or a thinner sample, cannot take that place.
Start with the job, then the hole, then whether any grade is printed. A locker code and a shed lock are different products, even when a title names both. This page compares twelve amazon.co.uk listings. Prices, stars and review counts come from those pages. None prints BS EN 12320 or Sold Secure. The card score is the star rating times 20. Review count splits the tie at 4.7 and sets the bar for best value. It does not add points, and it is not a cutting test.
A padlock is a portable lock for a hasp, a chain, a locker or a toolbox. In this amazon.co.uk set the live choice is a 4-digit combination or a small keyed lock. A 32 mm suitcase lock and a 50 mm shed lock are not substitutes. Name the job first: locker, shed or gate, chain, suitcase, or container. Measure the hasp or the chain before you trust a title. You need the shackle diameter, the horizontal clearance and the vertical clearance. Titles here disagree with their own size fields.
Several listings disagree with their own size fields. The SEPOX title says 58 mm, the model name says 40 mm, and the components line says a 46.5 mm shackle. Measure the hasp. Do not pick one of those numbers and hope.
Two keys on one lock are a spare. Keyed alike means one key family opens every lock in the pack. In this set that claim is the SEPOX listing. JMIATRY reviews say each lock has its own keys. Solvica is advertised as two locks, and three reviews say only one arrived.
Set the code, open the shackle, and try the code again before the lock is on the hasp. The Squire CP40 reset is a small screw, and one unit arrived already stripped. A combination you cannot reopen is not a spare you can cut off without damaging the hasp.
Measure the hole before you compare prices. You need shackle diameter, horizontal clearance and vertical clearance. A stated diameter is the figure you can check. In this set that is 8 mm on the Diyife and the NovLock, 5 mm on the YIKI, and a seller line of 12 mm on the JMIATRY. The SEPOX line gives length, 46.5 mm, not a diameter. GRIFEMA, SharkByte, NAGE, both Squire models, xdg and Solvica leave the diameter blank or unusable. A blank line does not inherit 8 mm from the Diyife.
Ask for a classification before you pay for a heavy body. BS EN 12320:2021 covers mechanical padlocks and fittings, with six security grades. Sold Secure maps Bronze to CEN 3, Silver to CEN 4, Gold to CEN 5 and Diamond to CEN 6. If the listing is silent, the lock is ungraded. Every listing here is silent. A 180-hour salt-spray line, the word weatherproof, or an anti-drill claim is not that grade. Squire's own 5/10+ on the CP50 is the maker's scale.
Three typical situations, each with a recommendation from this comparison.
The hasp takes an 8 mm shackle and a body around 50 mm. The Diyife is the top pick at about £13.99, 4.7 from 1,993 reviews, with a stated 8 mm stainless shackle. It is heavy, at 270-280 g, the listing prints two body sizes, and no CEN grade is stated.
You want a small code lock and you will oil it. The GRIFEMA is the best value at about £3.78, 4.4 from 10,461 reviews. The shackle diameter is not stated, and two successive locks in the reviews stopped opening after about six months.
A gate and a second hasp need the same key. The SEPOX pair is about £9.97, 4.4 from 1,621 reviews, with three keys sold as keyed alike. The hoop rusts in UK rain, and the title, model name and dimensions disagree, so measure the clasp.
The top pick is the Diyife 52 mm combination padlock at about £13.99. It shares 4.7 stars with the NovLock, and it takes the place because it has 1,993 reviews against 883, with a stated 52 mm body and an 8 mm shackle. The best value is the GRIFEMA at about £3.78, 4.4 from 10,461 reviews, the lowest price at 4.4 or above with at least 1,000 reviews. Its shackle diameter is not stated, two locks in the reviews stopped opening after about six months, and no listing in the set prints a security grade.
Diyife 52 mm combination padlock
4.7 from 1,993 reviews, a stated 52 mm body and an 8 mm shackle, ahead of the NovLock on sample size.
GRIFEMA 4-digit padlock
Lowest price at 4.4 or above with at least 1,000 reviews: about £3.78 from 10,461 reviews. The shackle diameter is not stated.
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 UK sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the amazon.co.uk listings in the product files. None of the twelve listings states a BS EN 12320 grade or a Sold Secure mark.
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 (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the listings. This is not a laboratory test.
