---
product_id: 52059673
title: "Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636)"
brand: "silverline"
price: "$58.29"
currency: USD
in_stock: true
reviews_count: 13
category: "Silverline"
url: https://www.desertcart.ec/products/52059673-silverline-monobloc-back-nut-tap-spanner-27-and-32mm-656636
store_origin: EC
region: Ecuador
---

# Compact design for tight spaces Dual 27 & 32mm sizes Zinc-plated corrosion resistance Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636)

**Brand:** silverline
**Price:** $58.29
**Availability:** ✅ In Stock

## Summary

> 🔧 Tighten with confidence, even where space says no!

## Quick Answers

- **What is this?** Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636) by silverline
- **How much does it cost?** $58.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/52059673-silverline-monobloc-back-nut-tap-spanner-27-and-32mm-656636)

## Best For

- silverline enthusiasts

## Why This Product

- Trusted silverline brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Enhanced Torque Control:** Box-end head and included tommy bar deliver superior grip and leverage for a secure, no-slip fit.
- • **Compact & Ergonomic Design:** Slim profile and optimal shaft length provide unmatched access in cramped, hard-to-reach areas.
- • **Precision Fit for Dual Sizes:** Effortlessly tackles both 27mm and 32mm back nuts, covering your most common monobloc taps.
- • **Corrosion-Resistant Zinc Plating:** Built to last with a sleek finish that resists rust and wear, ensuring longevity in your toolkit.
- • **Trusted by DIY Pros & Managers Alike:** Join thousands who’ve upgraded their bathroom projects with this essential, frustration-saving tool.

## Overview

The Silverline Monobloc Back Nut Tap Spanner 27 & 32mm is a corrosion-resistant, zinc-plated alloy steel tool designed specifically for fitting and tightening back nuts on monobloc taps. Its dual-ended design supports both 27mm and 32mm fittings, while its compact, ergonomic shape allows easy access in tight spaces, making it an indispensable tool for bathroom tap installations and repairs.

## Description

Free delivery and returns on all eligible orders. Shop Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636).

Review: 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.
Review: 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.

## Features

- Corrosion-resistant, zinc-plated steel
- Double-ended
- For 27 & 32mm fittings
- For fitting back nuts to monobloc taps

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0014BKY78 |
| Batteries Required? | No |
| Batteries included? | No |
| Battery Cell Type | Zinc |
| Best Sellers Rank | 122,721 in DIY & Tools ( See Top 100 in DIY & Tools ) 51 in Box Spanners |
| Colour | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,302) |
| Date First Available | 19 Feb. 2008 |
| Finish | Zinc-plated |
| Head Style | Box End |
| Included Components | 1 x Tommy bar, 1 x Backnut Tap Spanner 27/32mm |
| Item Package Quantity | 1 |
| Item Weight | 368 g |
| Item model number | 656636 |
| Manufacturer | SLTL4 |
| Material | Alloy Steel |
| Number of Pieces | 1 |
| Part Number | 656636 |
| Power Source | Hand Powered |
| Product Dimensions | 0.07 x 0.04 x 0.23 cm; 368 g |
| Size | 1 - Pack |
| Style | CLASSIC |

## Product Details

- **Brand:** Silverline
- **Colour:** Silver
- **Item length:** 12 Inches
- **Item weight:** 0.37 Kilograms
- **Material:** Alloy Steel

## Images

![Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636) - Image 1](https://m.media-amazon.com/images/I/516g+7Q22uL.jpg)
![Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636) - Image 2](https://m.media-amazon.com/images/I/61u6WHqhMhL.jpg)
![Silverline Monobloc Back Nut Tap Spanner 27 & 32mm (656636) - Image 3](https://m.media-amazon.com/images/I/813DRgwZaGL.jpg)

## Available Options

This product comes in different **Item Package Quantity, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good solid tool, allows taps to be tightened when there is very little space.
*by I***N on 5 July 2019*

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.

### ⭐⭐⭐⭐⭐ It's all about having the right tools - this is the right tool!
*by G***S on 16 May 2015*

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.

### ⭐⭐⭐⭐ Strong spanner
*by C***9 on 21 May 2020*

Good spanner for the price. Only gave it 4 stars as it just wasn't quite long enough.

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**Shop now:** [https://www.desertcart.ec/products/52059673-silverline-monobloc-back-nut-tap-spanner-27-and-32mm-656636](https://www.desertcart.ec/products/52059673-silverline-monobloc-back-nut-tap-spanner-27-and-32mm-656636)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-16*