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The Silverline Monobloc Back Nut Tap Spanner 27 & 32mm is a corrosion-resistant, zinc-plated alloy steel tool designed for precision tightening of back nuts on monobloc taps. Its double-ended design fits both 27mm and 32mm fittings, while its compact 12-inch length allows access in confined spaces, making it an essential tool for professional and DIY plumbing tasks.






















| ASIN | B0014BKY78 |
| Best Sellers Rank | 144,081 in DIY & Tools ( See Top 100 in DIY & Tools ) 54 in Box Spanners |
| Brand | Silverline |
| Colour | Silver |
| Country of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,302) |
| Finish | Zinc-plated |
| Global Trade Identification Number | 05024763029790 |
| Head Style | Box End |
| Included Components | 1 x Tommy bar, 1 x Backnut Tap Spanner 27/32mm |
| Item Length | 12 Inches |
| Item Package Quantity | 1 |
| Item Type Name | Silverline 656636 Back Nut Tap Spanner, 27 and 32 mm |
| Item Weight | 0.37 Kilograms |
| Manufacturer | SLTL4 |
| Material | Alloy Steel |
| Model Number | 656636 |
| Operation Mode | Mechanical |
| UPC | 002147483647 |
| Unit Count | 1.0 Count |
I**N
Good solid tool, allows taps to be tightened when there is very little space.
Brilliant product. If you are going to be changing bath taps or basin taps then this is something which will make a difficult job alot easier. Changing the bathroom bath taps and tightening up the new taps so that they didn't move was nigh on impossible, due to two facts. 1) Because of the area where my bath is located I had to use my weaker arm (left) under the bath to try and twist the tap back nut which was incredibly difficult to get it to any level of stiffness. 2) My bath is positioned directly next to an external wall. Unfortunately the gap between the external wall and the bath is only a few inches, so trying to use a basin wrench or any other type of spanner was impossible. Using this tool allowed me to tighten both my bath taps and basin taps so that neither of them would move during the course of normal use, which was impossible without it.
J**G
A great tool
A great tool, good value and did the job. You don't want to be paying loads for a tool you very rarely used, I doubt I'd have to use it again. It did a great job
J**R
good tool
good tool for tightening tap nuts
G**S
It's all about having the right tools - this is the right tool!
An incredibly useful spanner which, whilst not making fitting taps a joy (nothing can do that in my book!), is a pleasure to use. The shaft of the box spanner is a decent length and easily allows rotation access to cramped areas of standard wash basins. I guess it is worth checking, before buying, if the length of the spanner will allow you the necessary rotation access for the job you need: the spindle holes are placed about 1.5 inches from the base of the shaft and this means that you have probably just under 8 inches of clearance from the the nut to place the spindle in the holes. It supports 27mm nut sizes which, I understand, is pretty standard for wash basin taps . It also supports 32mm nut sizes. A great tool and I just wish in my ignorance I had found it sooner - I would have saved money and much frustration buying other fancy tap spanners that weren't anywhere near as easy to use.
R**D
A marriage made in heaven
This is a good quality tool perfect for the job in hand,tightening tap back nuts.One 1 star review says that it won't fit the black nylon 27mm back nuts on modern taps,this is not true in my case,it fits my nylon or plastic black back nuts fine and you don't need to exert much pressure to tighten them. Also i read that there isn't a tommy bar with the box spanner,yes there is with mine and that the tommy bar is too large for the pre drilled holes,not in my case, fits fine.All in all a simple strong tool for a specific job,very pleased with it.
K**H
Back nut spanner
Came without bar Used to tighten back nut on basin tap
R**S
Solid and easy to use
Did exactly what I needed them to do, couldn't have done the job without them so great value for money Click 'HELPFUL' below if you found this useful ;)
C**9
Strong spanner
Good spanner for the price. Only gave it 4 stars as it just wasn't quite long enough.
F**D
Dovendo sostituire la cartuccia del miscelatore del bidet di casa avevo difficoltà a svitare la guarnizione di serraggio che blocca appunto la cartuccia nel miscelatore. Ho provato inizialmente con una pizza a pappagallo, poi con una chiave inglese, utilizzando il WD40 per allentare il fissaggio, ma nulla, solo tempo e fatica sprecata. Con questa chiave ho risolto in 30 secondi. Ho svitato il blocco cartuccia in un attimo e senza fatica. La chiave a tubo è robusta e il perno altrettanto efficiente e di ottima qualità. Lo consiglio vivamente, un acquisto utilissimo.
C**N
Très bien
U**R
Der Rohrsteckschlüssel ist gut verarbeitet, hat keine scharfen Kanten und passt einwandfrei. Auch das Material ist sehr solide
A**L
Perfecto, es exactamente lo que buscaba, para arreglar grifos monomando de Grohe.
B**T
Qui correspond au diamètre demandé aucun souci à ce jour fonctionne parfaitement
Trustpilot
2 months ago
1 month ago