The best cavity wall plugs, compared.
Top pick: Corefix Connect 100 mm, 24 Best value: PlasPlugs hollow plugs, 50 – About £3.99 for 50 winged plugs, 4.6 from 931 reviews, for light hollow-board work when you already own the screws. Updated October 2026.
A cavity wall plug locks behind a panel, or bridges plasterboard to the masonry on a dry-lined wall. You need one when a stud wall is hollow, or when dry lining hides blockwork and a short brick plug pulls out of the void. Name the wall before you buy. A stud void wants a toggle or a knotting anchor that opens behind the board. Dot and dab wants a fixing long enough to reach the block, so the plasterboard does not crush. Solid masonry wants a masonry plug, which is a different category. Read any stated load with the board thickness, and keep a per-fixing figure separate from a pack total. Do not add those lines. A listing score is buyer opinion, not a measured safe working load. Check the hole diameter, the cavity depth, and whether the screws and the drill bit are in the box. Ignore a heavy-duty claim when no kilogram is printed. Matching the wall to the fixing is set out in the [cavity wall plug buying guide](/hub/screws-and-accessories/cavity-wall-plug/sub/cavity-wall-plug-buying-guide).
A cavity wall plug locks behind a panel, or bridges plasterboard to the masonry on a dry-lined wall.
24 products checked · 64 hrs invested · +22,100 readers
Swipe for more
1-2 of 7
Personal buying guide
Question 1 of 2
What is behind the board?
The Corefix Connect box of 24 is about £21.00 and rated 4.7 from 1,437 amazon.co.uk reviews, the largest sample in this set. The listing is for plasterboard over block, brick or stone, including aerated block, with a steel core that bridges the dab gap. Buyers describe radiators, curtain rails, shelves, kitchen units and TV brackets on thermolite and drylined walls. One line says a four-fixture set can withstand up to 100 kg, and the highlight says 55 kg per fixing, so you keep those figures apart. Cantilever brackets remain excluded, and a 4.7 rating is not a measured load. No drill bit is listed, the bullets give no hole diameter, and the size field says 5.0 x 100 mm while the thread field says M8. One buyer on a breeze-block dab wall found a floating media unit less secure than expected, and another swapped the supplied screws for an IKEA Boaxel job.
Pros
Cons
Best for: Several dot-and-dab fixings when you already own a masonry bit and can keep the two load lines apart.
Less suitable: A first dab job that needs the bit in the box, or a cantilever bracket.
Specifications
Common questions
Which load figure is on the 24 box?
The listing says a four-fixture configuration can withstand up to 100 kg, and the highlight says 55 kg per fixing. Cantilever brackets are not recommended.
Is a drill bit in this box?
No drill bit is listed for this 24 box. The listing names a screwdriver, a hammer and a drill, without a hole diameter in the bullets.
What do the size fields say?
The size field says 5.0 x 100 mm. The thread field says M8. Those two fields do not agree. The bullet says the fixing is made in Britain.
You drill a 10 mm hole for each of the 20 fischer DuoTec 10 toggles in this box at about £12.99, then the toggle has to drop behind the board before a screw you supply meets the metal insert. Across 1,413 amazon.co.uk reviews at 4.6 stars, buyers describe a hold on hollow and double-skin plasterboard for shelves, radiators and bathroom fittings. One reviewer notes the 10 mm hole is smaller than a Gripit hole. The listing claims a high load and names cabinets, shelves and mirrors, but it prints no kilogram. The material field says Wool while the bullets say nylon. A tight cavity stops the toggle opening, and one buyer lost two of about twenty plugs when the screw missed the toggle. Instructions are thin, with one review pointing you to an installation video on tile. If the drill wanders, the hole is too big for the sleeve, and the screws are not in the box.
Pros
Cons
Best for: A hollow stud wall or double-skin plasterboard when you can supply the screw and the cavity is deep enough for the toggle to drop.
Less suitable: A tight cavity, a job that needs the screws in the pack, or a listing kilogram you can check before you buy.
Specifications
Common questions
Are the screws in the DuoTec box?
No. Included components are plugs. The bullet says to use a compatible wood, chipboard or metric screw, or a hook.
What hole does the listing give?
The diameter field is 10 mm, and reviews describe a 10 mm hole. No drill bit is listed in the box.
What load is printed on the listing?
The listing says high load capacity and names cabinets, shelves and mirrors. It does not print a kilogram. The material field says Wool while the bullets say nylon.
You get six Corefix Connect fixings at about £9.49, each with a 95 mm plastic plug, a 45 mm steel core and a 100 mm zinc-plated screw, plus a 10 mm bit. The install line asks for a 10 mm masonry hole to 100 mm, and you clear the dust before you tap the plug in so the core can reach the block. Across 1,035 amazon.co.uk reviews at 4.6 stars, buyers describe TVs and radiators on dot-and-dab block, including soft thermal blocks and insulated plasterboard, where ordinary plugs had failed. The pack bullet says the six fixings can withstand up to 150 kg, and the highlight says 55 kg per fixing. Those lines are not one figure, and you should not add them. Cantilever brackets are excluded. Reviewers say the bit wanders when it leaves the soft board and meets uneven block, and dust at the back of the hole leaves the depth short. In this set it is the top pick for a dot-and-dab television or radiator close to the wall.
Pros
Cons
Best for: A television or radiator close to a dot-and-dab wall over block, brick or stone, when you want the bit in the pack.
Less suitable: A cantilever bracket, a hollow stud void with no masonry behind the board, or a job that needs one agreed kilogram.
Specifications
Common questions
Which load figure is on the six-pack listing?
The pack bullet says the six fixings can withstand up to 150 kg. The highlight says 55 kg per fixing. Cantilever brackets are not recommended. Do not add the two lines.
What do you drill?
The install bullet says a 10 mm masonry bit to 100 mm depth, and a 10 mm bit is in the pack. Clear dust before you tap the plug in.
What do reviews repeat about fitting?
Buyers describe TVs and radiators on dot-and-dab block. They also describe a bit that wanders when it meets the block, and a hole left short by dust.
This PlasPlugs pack is 50 winged nylon plugs at about £3.99, rated 4.6 from 931 amazon.co.uk reviews. The wings and the nylon barrel sit inside a hollow wall, and the bullet says the pack instructions give a recommended screw and drill size. Screws are not in the title, and the reviews do not describe screws in the box. Buyers use them for lighter and moderate loads, including a bathroom mirror, and they mention a gauge or poker for checking the hole. The listing prints no kilogram. One pack was counted as 47 against packaging that said 50, one plug was a little long for a standard panel door, and one drill size was not a bit the buyer already owned. It is the best value in this set when the job is light hollow-board work and you already own the screws.
Pros
Cons
Best for: Pictures and lighter fittings on hollow plasterboard when you already have suitable screws.
Less suitable: A heavy television, a dot-and-dab wall that needs the fixing to reach the block, or a pack count you cannot check.
Specifications
Common questions
Are screws included?
Not in the title. Reviews do not describe screws in the box. The bullet says the pack instructions give a recommended screw and drill size.
What load does the listing state?
No kilogram. The bullets say a strong hold for hanging. Reviews describe lighter and moderate loads, including a bathroom mirror, not a heavy television fixing.
What drill size is printed?
The recommended drill size is on the pack, not as a millimetre in the listing text. One review said the bit was not one they already owned. One pack was counted as 47 against 50.
This fischer DuoHM pack at about £12.99 gives you 25 cavity fixings at 5 x 55 mm and 25 M5 x 55 PZ screws, and the bullet says no extra setting tool. The nylon body is meant to knot behind the panel once you have drilled into the cavity and drawn the screw up with a cordless driver. The listing is 4.4 from 115 amazon.co.uk reviews, and buyers describe a hold for cupboards and a 40-inch TV mount. One review says the screw can be removed and replaced, unlike a spring toggle. The page claims a high load for TVs, shelves and cabinets, and it prints neither a kilogram nor a drill millimetre. Drawing the knot tight takes a long time on a cordless driver, PZ heads can strip when fully tightened, and one buyer found the plastic stopped the fingers pulling tight against the back of the board. A comment on the same listing about 10 mm versus 8 mm sizes is not a specification of this 5 x 55 title.
Pros
Cons
Best for: A plasterboard cavity when you want the screws in the box and a metric thread you can remove.
Less suitable: A job that needs a printed load, or a 25-pack you expect to cost less than about £12.99.
Specifications
Common questions
Are screws included with the DuoHM pack?
Yes. The pack lists 25 M5 x 55 screws with a PZ drive, one per fixing.
Does the listing require a setting tool?
No. The bullet says no extra setting tool. You still need a drill and a cordless screwdriver. One review says to check for cables and pipes before drilling.
What load is printed?
The listing says high load capacity and names TVs, shelves and cabinets. It does not print a kilogram or a drill millimetre.
The Wavanta set is about £5.99, rated 4.1 from 254 amazon.co.uk reviews, and it contains 50 polypropylene plugs and 50 zinc-plated screws. The 100-piece title counts both, so you are not buying 100 plugs. You drill an 8 mm hole, insert the expansion tube, and turn the screw until it stops, which draws the fixing up behind the board. Reviewers describe thick plugs for light fittings on plasterboard and treat the pack as light or medium duty. The listing prints no kilogram. The screws can strip the plastic thread, and they are too short once the fixture is thicker than about 6 or 7 mm. One review says these large screws are the wrong choice for a hollow door.
Pros
Cons
Best for: Light fittings on plasterboard or hollow board when the fixture is thinner than about 6 or 7 mm.
Less suitable: A hollow door, a thick bracket, or a job you would hang from a stated heavy load.
Specifications
Common questions
Does 100 pieces mean 100 plugs?
No. Included components are 50 plugs and 50 screws. The title counts both.
What hole does the listing ask for?
Drill an 8 mm hole, insert the expansion tube, and turn the screw until it will not turn further.
What do reviews say about the screws?
Reviews say the screws can strip the plastic, and that they are too short once the fixture is thicker than about 6 or 7 mm. Buyers treat the pack as light or medium duty.
The PEAPIN pack is 30 nylon hollow anchors and 30 screws at about £4.79, rated 4.1 from 149 amazon.co.uk reviews. The bullet recommends a 10 mm twist or triangle bit and tells you not to use a 10 mm impact bit, and no bit is in the pack. The bullets say heavy duty and print no kilogram. The size and thread fields say M8, while a review measured the screws at 3.5 mm by 50 mm. Reviewers report screws that do not reach the end of the plug, plastic that snaps, and anchors that do not grip. One buyer used 16 and still worked through the pack because anchors broke or failed to grab, and a failure on new plasterboard left a hole to patch. Some buyers did hang a ceiling light where earlier plugs had fallen out.
Pros
Cons
Best for: A light plasterboard hanging only after you have checked the screws in the pack against the M8 field.
Less suitable: A shelf or television you would treat as heavy duty, or a new board you cannot patch if the plastic snaps.
Specifications
Common questions
What size are the screws?
The size and thread fields say M8. A review describes the screws as 3.5 mm x 50 mm. Those two accounts do not match.
What drill does the bullet recommend?
A 10 mm twist or triangle bit. The bullet says not to use a 10 mm impact bit. No bit is listed in the pack.
What do reviews report going wrong?
Short screws that do not reach the end of the plug, plastic that snaps, and anchors that do not grip. The bullets say heavy duty and print no kilogram.
Seven amazon.co.uk listings were scored from the stored pages. Shelf date 20 October 2026. There is no laboratory load test. A star rating is not a measured safe working load. The highest total is the top pick, once. Best value is the winged plug pack at about £3.99 for light hollow-board work when you already own the screws. It is not a second award for the dab kit. The weights below sum to 100.
Job match
40%A dot-and-dab bridge with screws, a stated masonry hole and a drill bit in the box scores at the top. A stud-void toggle with a large review file scores next, with a deduction when the screws are absent and the listing prints no kilogram. A knotting anchor with screws and no listing kilogram scores in the middle. A winged plug for light hollow-board work scores lower. Expansion packs with short-screw reviews and a size-field conflict score lowest.
Stars
18%Listings at 4.6 or 4.7 score 18. A 4.4 listing scores 15. Listings at 4.1 score 12. The star line is the amazon.co.uk figure. It is not a safe working load.
Sample
18%About 1,400 reviews score 17 or 18. About 1,000 reviews score 16. About 900 score 14. About 250 score 8. About 115 to 149 score 6.
Listing consistency
14%Start higher when the title, bullets and spec block describe one fixing. Deduct for a material field that says Wool against nylon bullets, two load lines that must not be added, a size field against a thread field, or a piece count that hides the screws. A stated cantilever exclusion is not a deduction.
Value
10%A coherent light-duty plug pack at £3.99 scores 10. A complete dab kit at £9.49 scores 8. A £12.99 box with screws and a small sample scores 6. A £5.99 pack with short-screw reviews scores 6. Plugs only at £12.99 score 5. A conflicted £4.79 pack scores 5. A 24-box at £21.00 with no bit listed scores 4.
Name the wall, then read a load figure with its conditions. A star line is buyer opinion. Screws, the drill size and the cavity depth decide whether the pack in front of you can do the job. None of these scores is a laboratory measurement.
A cavity wall plug is the fixing you use when the board does not sit on solid masonry. On a stud wall the void is empty, so the plug has to open or knot behind the plasterboard. On a dot-and-dab wall the board is stuck to block, brick or stone with a gap, so a short plug never reaches the structure and the board can crush. Solid masonry is a different job and wants a masonry plug. Start with the wall. A stud void wants a toggle, a knotting anchor, or a screw into the stud.
An expanding masonry plug needs solid material around it. In a stud void, or across a dab gap, gypsum and the air behind the board will not hold it. Name the wall before you match the plug.
The 0.36 kN DuoTec row is a 120 mm span, not a normal bay. Corefix’s 55 kg per fixing is not the same sentence as 100 kg on four fixings or 150 kg for a six-pack. Do not multiply 55 by the pack size.
A dab fixing needs the full depth, about 100 mm, so the core can reach the block. Dust at the back leaves the hole short. Plugs with no screw in the box also stop the job if you have not bought a matching screw.
Name the wall first. A stud void wants a toggle, a knotting anchor, or a screw into the stud. Dot and dab wants a fixing that reaches the block. Solid masonry wants a masonry plug from another category. Then read the load with its conditions. fischer recommends 0.20 kN for one DuoTec 10 in 12.5 mm plasterboard at a 625 mm span, with a 4.5 or 5.0 mm chipboard screw. About 20 kg is a conversion, and the 0.36 kN row is a 120 mm span. The amazon listing prints no kilogram.
DuoTec and PlasPlugs include no screws. On the maker pages, DuoTec 10 wants a 10 mm hole and at least 40 mm of cavity. DuoHM 5 x 55 wants a 10 mm hole, at least 45 mm of cavity, and states 20 kg in 12.5 mm plasterboard. Those figures are not on the amazon bullets. The DuoHM listing says no extra setting tool, and you still need a drill and a driver. Corefix uses a 10 mm hole to about 100 mm, with 45 mm maximum from the board face to the block. The six-pack includes the bit.
Three typical situations, each with a recommendation from this comparison.
You want a large pack for pictures and lighter fittings, and you accept that no kilogram is printed. The PlasPlugs pack is 50 winged nylon plugs at about £3.99, with 4.6 from 931 reviews. Screws are not in the title. One pack was counted as 47 against 50.
You are fixing shelves or a flush bracket in a stud void and you can supply the screw. The fischer DuoTec 10 is 20 nylon toggles at about £12.99, with a 10 mm hole and 4.6 from 1,413 reviews. The listing prints no kilogram. The toggle needs room to drop, and a tight cavity stops it opening.
The board is stuck to block, brick or stone and the set or radiator sits close to the wall. The Corefix Connect six-pack is about £9.49, with steel cores, six 100 mm screws and a 10 mm bit, and 4.6 from 1,035 reviews. Keep the 55 kg and 150 kg lines apart. Cantilever brackets are excluded.
The top pick is the Corefix Connect six-pack at about £9.49: six steel-core fixings, six 100 mm screws and a 10 mm bit, with 4.6 from 1,035 reviews, for a television or radiator close to a dot-and-dab wall. The pack line of up to 150 kg and the 55 kg per fixing line stay separate, and cantilever brackets are excluded. The best value is the PlasPlugs pack of 50 winged nylon plugs at about £3.99, 4.6 from 931 reviews, for lighter work on hollow plasterboard when you already own the screws. The listing prints no kilogram. None of these scores is a laboratory load test.
PlasPlugs hollow plugs, 50
About £3.99 for 50 winged plugs, 4.6 from 931 reviews, for light hollow-board work when you already own the screws.
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.
Maker pages and UK public sources used for this comparison, checked on 20 October 2026. Shelf prices, stars and review counts are the amazon.co.uk listings staged that day.
This page contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Scores use amazon.co.uk listings and public sources. They are not a laboratory load test.
