--- product_id: 48524924 title: "Silverline Monobloc Back Nut Tap Spanner 3pce 9 x 11 & 12 x 13mm (719819)" brand: "silverline" price: "€ 17.59" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.at/products/48524924-silverline-monobloc-back-nut-tap-spanner-3pce-9-x-11 store_origin: AT region: Austria --- # Long reach for tight spaces Fits 9x11 & 12x13mm fasteners Zinc-plated corrosion resistance Silverline Monobloc Back Nut Tap Spanner 3pce 9 x 11 & 12 x 13mm (719819) **Brand:** silverline **Price:** € 17.59 **Availability:** ✅ In Stock ## Summary > 🔧 Unlock precision and power in every twist — don’t get left wrenching in the past! ## Quick Answers - **What is this?** Silverline Monobloc Back Nut Tap Spanner 3pce 9 x 11 & 12 x 13mm (719819) by silverline - **How much does it cost?** € 17.59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/48524924-silverline-monobloc-back-nut-tap-spanner-3pce-9-x-11) ## 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 - • **Extended Reach Design:** Access those hard-to-reach spots with ease—no more awkward angles or stripped nuts. - • **Ergonomic Matt Finish Grip:** Comfort meets control with a non-slip surface that reduces hand fatigue during prolonged use. - • **Precision Fit for Monobloc Taps:** Engineered specifically for 9x11mm & 12x13mm back nuts, ensuring a secure grip every time. - • **Trusted Quality from Silverline:** Backed by rigorous compliance and ethical manufacturing, join thousands of pros who rely on this top-rated tool. - • **Corrosion-Resistant Zinc-Plated Steel:** Durable finish that stands up to moisture and wear, keeping your tools looking sharp and lasting longer. ## Overview The Silverline Monobloc Back Nut Tap Spanner 3-piece set features corrosion-resistant zinc-plated steel construction with a matt finish for enhanced grip. Designed for fitting back nuts on monobloc taps, it covers 9x11mm and 12x13mm fasteners and offers a long reach to access restricted areas. Manufactured under strict quality and ethical standards, this tool combines durability, precision, and comfort for professional and DIY use. ## Description Silverline tools supplies a wide range of award-winning and top-rated hand and power tools across 26 categories. Silverline empowers everyone with the tools they need to complete jobs or projects in the home, garage, garden and workshop. Looking for project inspiration? Subscribe to the Silverline Tools YouTube channel for hundreds of How To tutorials! With over 5000 products manufactured across the UK, Europe, United States and Asia, it’s important for us to work hard to reduce the environmental impact throughout our chain of operations. Our sourcing team works closely with our factories to find ways to reduce environmental costs associated with bringing you quality products. With our own dedicated product compliance team of more than 50 people we inspect every production run to ensure products meet with our specification and your satisfaction. The compliance team are also responsible for our factory audit programme involving the comprehensive review of working conditions and ethical business practice at every factory manufacturing our products. Corrosion-resistant, zinc-plated steel with easy-grip matt finish. For fitting back nuts to monobloc taps in restricted access areas. Matt finish for grip. ## Features - Corrosion-resistant, zinc-plated steel - Long reach for access in restricted areas - For 9 x 11mm & 12 x 13mm fasteners - For fitting back nuts to monobloc taps ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0014BOAIW | | Best Sellers Rank | 347,259 in DIY & Tools (See Top 100 in DIY & Tools) 115 in Box Spanners | | Brand | Silverline | | Colour | Silver | | Customer Reviews | 4.5 4.5 out of 5 stars (1,225) 4.5 out of 5 stars | | Finish | Zinc-plated | | Global Trade Identification Number | 05024763029806 | | Head Style | Box End | | Included Components | 1 x Monobloc back nut tap spanner 12/13mm, 1 x Monobloc back nut tap spanner 9/11mm | | Item Length | 185 Millimetres | | Item Package Quantity | 1 | | Item Type Name | Silverline 719819 Monobloc Back Nut Tap Spanner, 9/11 and 12/13 mm | | Item Weight | 0.17 Kilograms | | Jaw Capacity | 13 Millimetres | | Manufacturer | SLTL4 | | Material | Zinc-plated Steel | | Measurement Standard | Metric | | Model Number | 719819 | | Operation Mode | Mechanical | | Part Number | 719819 | | Set Name | 3-piece set. | | Unit Count | 1.0 count | ## Product Details - **Brand:** Silverline - **Colour:** Silver - **Item length:** 185 Millimetres - **Item weight:** 0.17 Kilograms - **Material:** Zinc-plated Steel ## Images ![Silverline Monobloc Back Nut Tap Spanner 3pce 9 x 11 & 12 x 13mm (719819) - Image 1](https://m.media-amazon.com/images/I/51DwufWCDEL.jpg) ![Silverline Monobloc Back Nut Tap Spanner 3pce 9 x 11 & 12 x 13mm (719819) - Image 2](https://m.media-amazon.com/images/I/51AHLsPZDKL.jpg) ## Available Options This product comes in different **Style Name, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Do what they say. *by on Reviewed in the United Kingdom 30 January 2026* Good and as described. Tightened up my sink tap easily. Good value for money. ### ⭐⭐⭐⭐⭐ Perfect! *by on Reviewed in the United Kingdom 11 July 2018* For something so simple and so ridiculously cheap these are an absolute godsend. As many other people have said if you’re fitting a monobloc tap get some of these. Even if you’re not fitting a monobloc tap get a set of these and then you’ll have them when you need to change your taps. They make life so much easier than any other mechanism for getting to and tightening the 12mm nut that holds the tap on. They’re also about 180mm long which makes it much easier to do the job. ### ⭐⭐⭐⭐ Does the job. Don't use the long lever to tighten. You'll ruin things. *by on Reviewed in the United Kingdom 22 October 2020* I used a big nail instead of the leaver. The supplied lever just get in the way, and is so long that it invites ruining your threads. ## Frequently Bought Together - Silverline Monobloc Back Nut Tap Spanner 3pce 9 x 11 & 12 x 13mm (719819) - GROHE 30189000 | Ambi Kitchen Tap --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/48524924-silverline-monobloc-back-nut-tap-spanner-3pce-9-x-11](https://www.desertcart.at/products/48524924-silverline-monobloc-back-nut-tap-spanner-3pce-9-x-11) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-13*