The best ferrules, compared.
Top pick: WeqeYent 1000-piece non-insulated wire ferrules Best value: Newoutset 800-piece non-insulated wire ferrules – About £5.88, the lowest price, with the second-highest score and UK reviews that say the crimp holds. Updated October 2026.
A ferrule, also called a bootlace or wire-end ferrule, is a small metal tube you crimp onto stranded copper so the strands stay together in a screw or clamp terminal. In the UK you buy an insulated collar or a bare tube, and the cable's mm² comes before colour or piece count. A usable part survives a ferrule-tool crimp and a tug. Thin barrels that crack, and lids that mix the sizes, are the failures that matter. BS 7671 regulation 526.9 asks for a suitable terminal or a suitable treatment so fine strands do not separate. The IET names a crimped bootlace ferrule as that treatment in screw terminals, not as a rule for every cable. Match the conductor first. One size up crimps loose, and one size down will not take the strands. Colour is never the size. A bare tube is for when the collar will not fit. The order of those checks is in the [ferrule buying guide](/hub/diy-supplies/ferrule/sub/ferrule-buying-guide). [How to crimp a ferrule](/hub/diy-supplies/ferrule/sub/ferrule-how-to-crimp) covers the tool. The [cable ties comparison](/hub/diy-supplies/cable-ties) is a different job.
A ferrule, also called a bootlace or wire-end ferrule, is a small metal tube you crimp onto stranded copper so the strands stay together in a screw or clamp terminal.
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Personal buying guide
Question 1 of 2
Will a plastic collar enter the terminal?
The WeqeYent kit is 1,000 non-insulated ferrules at £10.99, with 4.6 from 187 amazon.co.uk ratings, the largest count in this set. The listing claims 0.5–16 mm² across 13 codes, including EN16-18, and short UK reviews praise that spread where a coloured collar will not fit or is too bulky. Those short reviews also say the ferrules crimp well and last, and that the smallest sizes arrive in resealable bags. One UK review says they do not crimp, are far too thin, and are like tinfoil, with the barrel too thin to resist the wire pushing back. The specification line prints a maximum of 24 V DC, which is left as printed and is not treated here as a UK mains rating. A bullet says tin-plated brass while a highlight says tin-plated copper, the lid is marked in AWG in one review, and dividers let ferrules slip and mix unless glued. It is the bare kit to consider when you want the 16 mm² code in the same box, with the thin-barrel review and the 24 V line still on the page, and with no crimper included.
Pros
Cons
Best for: You need a bare ferrule because a collar will not enter the terminal, and you want a 16 mm² code in the same box as the small sizes.
Less suitable: You are terminating on 230 V mains and need the listing’s voltage line to say so, or you need a barrel a reviewer could not crush like foil.
Specifications
Common questions
What is the largest ferrule in this kit?
The listing includes EN16-18 at 16.0 mm², inside a stated range of 0.5-16 mm² and 13 sizes totalling 1,000 pieces. Counts per code are not printed.
What voltage does the specification print?
Maximum voltage is printed as 24 V DC. That line is not a UK mains rating and is not rewritten here.
Why do UK reviews mention insulated ferrules?
Reviewers say they bought these bare ferrules where a coloured plastic collar would not fit or was too bulky. One review says the barrels were too thin to crimp.
Across 85 amazon.co.uk ratings at 4.6, the Newoutset kit is 800 non-insulated ferrules at £5.88, the lowest shelf price in this set. The listing counts 200 ENO508, 200 EN7508, 100 EN1008, 100 EN1508, 100 EN2510, 50 EN4009 and 50 EN6012, and the title gives the span as 10–22 AWG rather than one mm² range. The code is printed ENO508, so you match the conductor yourself instead of reading it as a checked DIN part. In 22 UK review texts the crimp is described as holding flexible cable tight once pliers have closed, and no split barrel is described. The repeated snag is the plastic box, which reviewers call awful and which the specification block does not list. There is no collar and no crimping tool in the box. That makes it the best value here when you want a bare ferrule and will keep the sizes in a better tin, not when you need a colour sequence.
Pros
Cons
Best for: You want bare ferrules for flexible cable at the lowest price in this set, and you will store them in something sturdier than the box reviewers describe.
Less suitable: You need a named colour sequence, a collar that funnels the strands, or a crimper in the same parcel.
Specifications
Common questions
Are these insulated bootlace ferrules?
No. The title, the highlight, and the insulation field all say non-insulated. The design bullet describes a trumpet mouth on the metal tube.
Which sizes are in the 800-piece kit?
The listing counts 200 ENO508, 200 EN7508, 100 EN1008, 100 EN1508, 100 EN2510, 50 EN4009, and 50 EN6012. The code is printed ENO508.
Does the kit include a crimping tool?
No. The how-to bullet tells you to press with professional crimping pliers until the tool releases.
Across 181 amazon.co.uk ratings at 4.5, the flintronic kit is 1,500 insulated ferrules at £8.99, stated as 0.5–10 mm² in eight sizes, with a plastic collar and PVC named on the listing. In the 21 UK review texts the crimps are described as neat and secure, including a pull check before fitting, and no electrical failure of a ferrule is described. One of those reviews used the ferrules to shorten RCBO cables, which is a comment on the part and not a procedure for opening a consumer unit. The same sample calls the organiser low quality, useless, or likely to burst, and says unused sizes crowd out the ones you need until the compartments mix. One bullet says tinned copper inserts and another says tin-plated brass, so the metal line is not single. No colour sequence is named, and no crimper is in the box. On score it is the top pick for a small insulated assortment with a deep UK sample, provided you buy the tool separately and do not trust the lid to keep the sizes apart.
Pros
Cons
Best for: You want insulated ferrules for ordinary flex in a screw terminal, and you want a UK review pile large enough to read before you buy.
Less suitable: You need a named colour sequence, a collar-free tube, or a box that reviewers say keeps the sizes apart.
Specifications
Common questions
Is this an insulated ferrule kit?
Yes on the listing. It says each ferrule has a plastic collar and names a PVC insulator. It does not name a DIN, French, or German colour sequence.
Does the box include a crimping tool?
No crimping tool is listed. The bullets describe crimped connectors and a portable organiser.
What do UK reviews say about the box?
Reviewers say the ferrules crimp securely, including on shortened RCBO leads. Several also say the box is flimsy and that the sizes mix or run out unevenly.
The Gorffy assortment is 2,200 pieces at £13.98, the highest price and the highest count here, with 4.4 from 100 amazon.co.uk ratings. The title says insulated ferrules from 0.5–10 mm² and lists red, white, black, yellow and blue sleeves, without naming a DIN, French or UK “German” sequence. The insulation-material field says copper, so the listing both claims sleeves and prints copper as the insulation. Included components says ferrule, while one bullet still calls the set a crimping tool kit, and no tool is listed. Five UK review texts include a pull test the wire could not be drawn out of, and a description of the kit as value for money for a fair amount of electrical work. The same detailed review calls the tube thinner than Engex and says the PVC boot can be wiggled until the tinned tube cracks just before the screw line, while the clamped section still held. Another review says the lid does not click shut on one side once the outer wrap is off, so the extra pieces come with a thin-tube note and a box you may have to tape.
Pros
Cons
Best for: You want a large insulated assortment for occasional mixed sizes, and you will check each barrel and tape the lid if it does not click.
Less suitable: You want the crimper the bullet mentions, a named colour sequence, or a tube a reviewer did not find thin next to Engex.
Specifications
Common questions
Are these insulated ferrules?
The title and the insulated-assortment bullet say copper tube plus insulating sleeves. The specification field for insulation material says copper. Both lines are on the listing.
Does the kit include a crimping tool?
Included components says ferrule. No crimping tool is listed. One bullet still calls the product a ferrule crimping tool kit.
What did UK reviews say about strength?
One review says the crimp held a pull test but the tinned tube is thin and can crack if the PVC boot is wiggled. Another says the lid does not click shut on one side.
The shengbowi kit is 1,100 pieces at £7.70, and the amazon.co.uk line is 4.4 from only three ratings. The title says non-insulated, another bullet says the kit includes insulated butt joints, and the insulation field says copper, so the page does not settle collar or bare tube. A size bullet lists 0.5–10 mm² while a wire-diameter field says 0.5 mm, and the text says six sizes before it prints seven codes: EN0508, EN7508, EN1008, EN1508, EN2508, EN4009 and EN6012. The only UK review in the file says they do the job well, calls them slippery, and says to connect them to the same type of material. No broken part is named in that review, and no crimper is included. Three ratings and two insulation claims are why this row scores lowest, and why you skip it when you need to know what will arrive.
Pros
Cons
Best for: You have already identified the part from the photograph and only need a cheap top-up, accepting that the listing disagrees with itself.
Less suitable: You need to know, before the parcel arrives, whether the ferrule has a plastic collar.
Specifications
Common questions
Are these insulated or bare ferrules?
The title says non-insulated. Another bullet says the kit includes insulated butt joints, and the insulation field says copper. The listing does not settle it.
Is a crimping tool included?
No. The bullets tell you to press the terminals with a crimping tool. Included components is printed as 1.
How many ratings does the listing show?
The star line says 4.4 out of 5 from 3 ratings. The saved listing contains one UK review, which calls them slippery and says they do the job.
Scores use the five amazon.co.uk listings compared for this category on 21 October 2026. There is no lab crimp test, no assay of the metal, and no check that an EN-style code is a DIN 46228 declaration. A star line is not a measured joint. None of the kits includes a crimping tool. Listing lines that contradict each other are left as printed. Each score adds stars, the size of the rating sample, listing clarity, and UK review themes. Shelf price is used only for the value award. The highest score is the top pick. Best value is the lowest price among coherent listings, which is a different row.
Amazon stars
53%The star line is multiplied by ten, so a 4.5 becomes 45 points. It is the largest block in the score. Stars are the amazon.co.uk figure already stored. They are not a measured crimp.
Rating sample
19%A sample of 150 ratings or more scores 18. From 80 to 149 ratings scores 14. Below 10 ratings scores 2. Three ratings therefore cannot carry the same weight as a pile above 150.
Listing clarity
17%Clarity starts at 16. It loses 6 when insulation lines contradict, 4 when the printed maximum is 24 V DC, 2 when brass and copper are both printed, 2 when a bullet calls the set a crimping tool kit and no tool is listed, and 2 when the text says six sizes and then lists seven codes.
UK review themes
11%Themes start at 10 when a UK review text exists. They gain 4 when texts say the crimp holds or is secure, lose 4 for a thin, tinfoil or cracking barrel, lose 2 when the box is a repeated complaint, and lose 4 when the only note is that the parts are slippery.
You are choosing a bootlace ferrule for stranded copper in a screw or clamp terminal. The five amazon.co.uk listings captured on 21 October 2026 run from about £5.88 to about £13.98. Match mm² before colour or piece count. A collar is the usual screw-terminal choice when it fits. A bare tube is the fallback when it does not. None of these kits includes a crimper. The top pick is the flintronic insulated assortment when you want a collar and a deep UK review sample.
A ferrule in this comparison is a bootlace or wire-end ferrule: a small metal tube crimped onto stranded copper so the strands stay together in a screw or clamp terminal. UK shoppers buy an insulated collar or a bare tube. The usual stated span is 0.5–10 mm², and one listing claims up to 16 mm². The cable's mm² comes before colour or piece count. A usable part survives a ferrule-tool crimp and a tug.
Colour is never the size. DIN 46228-4, the French sequence, and the UK special sequence do not match. 1.5 mm² is black on DIN and French, and red on the special sequence. German on a lid is not DIN.
A red, blue and yellow terminal crimper, ordinary pliers, and the terminal screw are the wrong tools. The IET says crimp the ferrule before you insert it. None of these kits includes that tool.
Do not ferrule solid twin-and-earth out of habit, put two wires in one single ferrule, or ferrule 19-strand meter tails. A terminal marked f, and many cage clamps, want bare strands. Trust the mm², not the piece count on the lid.
Start with the cable's mm². One size up crimps loose. One size down will not take the strands. AWG on a lid is only a cross-check, and these listings disagree by about one AWG step. A collar funnels the strands into a screw terminal. A bare tube is the fallback when that collar will not enter, which is the reason UK reviews give for a non-insulated kit. Pin length is the other half of the code. EN1508 means 1.5 mm² and an 8 mm pin, and the terminal depth chooses the pin.
A named colour sequence only helps after the mm² is known. DIN 46228-4, the French sequence, and the UK special sequence do not match, and colours repeat inside a sequence. None of these five listings names which sequence is in the box. The crimper is separate on every row. A bullet that says crimping tool kit still lists no tool. Then look at the box. UK reviews say lids split, sizes mix, and the sizes you need run out first. Metal is whatever the bullet prints.
Three typical situations, each with a recommendation from this comparison.
You are ending ordinary flexible cable, about 0.75–1.5 mm², in a screw terminal, and you want a collar that funnels the strands. The flintronic 1,500-piece insulated kit is the top pick at about £8.99, with 4.5 from 181 ratings. Buy the crimper separately, and do not trust the lid to keep the sizes apart.
The plastic collar is too bulky for the terminal, so you want a bare tube. The WeqeYent 1,000-piece kit states 0.5–16 mm², including a 16 mm² code, at about £10.99, with 4.6 from 187 ratings. The printed maximum is 24 V DC, and one UK review calls the barrel tinfoil.
You want non-insulated ferrules and the lowest shelf price in this set. The Newoutset 800-piece kit is best value at about £5.88, score 88, with insulation lines that agree. UK reviews say the crimp holds and call the plastic box awful. There is no colour sequence.
The top pick is the flintronic 1,500-piece insulated kit at about £8.99. It scores 89, the highest here: 4.5 from 181 ratings, a consistent insulated title, and UK reviews that describe a secure crimp. The box complaints, and bullets that say both brass and copper, are the limit. Best value is the Newoutset 800-piece non-insulated kit at about £5.88, the lowest price, with a score of 88 and UK reviews that say the crimp holds. The shengbowi kit at about £7.70 is not the value pick: three ratings, and the listing contradicts itself on insulation.
Newoutset 800-piece non-insulated wire ferrules
About £5.88, the lowest price, with the second-highest score and UK reviews that say the crimp holds.
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 and the amazon.co.uk listings compared on this page. Listings captured 21 October 2026. Updated October 2026.
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 the amazon.co.uk figures already stored for this set. This is not a laboratory test.
