--- product_id: 48506696 title: "Silverline Double Worm Screw Head 50mm (868723)" brand: "silverline" price: "Β£7.93" currency: GBP in_stock: true reviews_count: 13 category: "Silverline" url: https://www.desertcart.co.uk/products/48506696-silverline-double-worm-screw-head-50mm-868723 store_origin: GB region: Great Britain --- # compatible with Silverline & most drain rod sets yellow zinc passivated steel for corrosion resistance 50mm double worm screw head Silverline Double Worm Screw Head 50mm (868723) **Brand:** silverline **Price:** Β£7.93 **Availability:** βœ… In Stock ## Summary > 🚿 Clear your drains, clear your schedule β€” the pro’s choice for hassle-free maintenance! ## Quick Answers - **What is this?** Silverline Double Worm Screw Head 50mm (868723) by silverline - **How much does it cost?** Β£7.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/48506696-silverline-double-worm-screw-head-50mm-868723) ## 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 - β€’ **Universal Compatibility:** Seamlessly fits Silverline and most third-party drain rod sets - β€’ **Cost-Effective DIY Solution:** Affordable enough to replace without worry, saving you costly professional fees - β€’ **Multi-Functional Cleaning Power:** Breaks up and pulls out stubborn drain blockages with ease - β€’ **Precision 50mm Double Worm Screw:** Engineered for maximum grip and efficient obstruction clearing - β€’ **Corrosion-Resistant Zinc Passivation:** Durable yellow zinc finish ensures long-lasting performance ## Overview The Silverline Double Worm Screw Head 50mm (868723) is a robust, yellow zinc passivated steel tool designed to break up and extract obstructions in drains. Compatible with Silverline and most third-party drain rod sets, it offers a cost-effective, durable solution for DIY drain cleaning, combining corrosion resistance with universal fit and reliable performance. ## Description Free delivery and returns on all eligible orders. Shop Silverline Double Worm Screw Head 50mm (868723). Review: Very good - So, first things first, the thread DOES NOT fit a standard size drain rod chimney rod set. But, because it's made of plastic, you can "cut your own thread" into it and, with a little effort, I did get it to fit snugly and tightly. The brush itself, yes, it's cheap, and, it's not going to last for years, but, here's the upside, BECAUSE it's so cheap, you won't worry about how long it lasts, just as long as it does the job. With that in mind, I've just finished cleaning our chimney, and, it's a smug fit, which is great, and it certainly cleans your chimney. After a bit of huffing and puffing, hoiking the rods up and down a few times, we now have a sparkling clean chimney. Good things are, it's cheap, it works, it's not much of a hassle to cut a thread into the plastic, and, I'm pretty sure it's not gonna fall off of the rods. I did lose two bristles, but, In the grand scheme of things, I'm not going to worry about that. At under 7 quid, this is a bargain, it's just saved me 45 quid, so it's already more than paid for itself, and, it's still intact, so, there are a good few uses still in it Overall, if you need one and you are happy with a bit of grunt cutting your own thread into the plastic with your rods, you can't really go wrong with this Review: Just the job - Bought to clear gutters which it does although as someone else pointed out, it does stall a little at the joins on the guttering. It would have been nice if it had had its own pole, so I ended up buying drain rods to attach it to as suggested, to ensure it would have the same thread. Again, that's somewhat problematic because they're bendy so I only worked with 2 joined together. The only pitfall was that some of my roof tiles came down too far which meant that I couldn't use the head in those areas (garage in particular) as it was too high to get underneath. Still better than having to move the ladder so many times and I am sure that I will get better at using it as time passes. Bonus that I could use the head to scrape some of the moss down from the roof although it did not work quite as well at this angle due to it being a drop head. ## Features - Yellow zinc passivated steel - Breaks up obstructive material in drains - Can be used to pull obstructions out when drawn back - Compatible with Silverline Drain Rod Sets & most third party sets ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000NBVCU8 | | Best Sellers Rank | 78,432 in DIY & Tools ( See Top 100 in DIY & Tools ) 265 in Drain Cleaning Equipment 424 in Scrapers 7,760 in Nails, Screws & Fasteners | | Brand Name | Silverline | | Colour | Silber | | Compatible Groove Diameter | 1.6 Centimeters | | Country Of Origin | China | | Customer Reviews | 4.3 4.3 out of 5 stars (2,136) | | Drive System | Pozidriv | | Exterior Finish | Zinc | | Fastener Size | 50 mm | | Fastener Type | screw | | Finish Types | Zinc Passivated | | Global Trade Identification Number | 05055058174673 | | Grade Rating | Galvanised steel | | Head Type | Doppel | | Included Components | 1 x Double worm screw | | Item Diameter | 1.6 Centimetres | | Item Dimensions | 15 x 5 x 7 centimetres | | Item Weight | 77 g | | Manufacturer | SLTL4 | | Manufacturer Part Number | 868723 | | Material Type | Steel, Zinc-passivated | | Metal | Alloy Steel | | Model Number | 868723 | | Number of Pieces | 1 | | Screw Head Style | Double Head | | Set Name | Set of 1 classic screw | | Set Screw Thread Type | Acme threads | | Size | 50 mm | | Thread Class | fine | | Thread Coverage | Fully Threaded | | Thread Size | 50 mm | | Thread Style | Right Hand | | Thread Type | UNF, UNC, or BSF | | UPC | 002147483647 | | Unit Count | 1.0 Count | ## Product Details - **Exterior finish:** Zinc - **Head style:** Double Head - **Item dimensions L x W x H:** 15 x 5 x 7 centimetres - **Material:** Steel, Zinc-passivated - **Thread size:** 50 mm ## Images ![Silverline Double Worm Screw Head 50mm (868723) - Image 1](https://m.media-amazon.com/images/I/51ZOk1qT6qL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good *by I***T on 24 October 2023* So, first things first, the thread DOES NOT fit a standard size drain rod chimney rod set. But, because it's made of plastic, you can "cut your own thread" into it and, with a little effort, I did get it to fit snugly and tightly. The brush itself, yes, it's cheap, and, it's not going to last for years, but, here's the upside, BECAUSE it's so cheap, you won't worry about how long it lasts, just as long as it does the job. With that in mind, I've just finished cleaning our chimney, and, it's a smug fit, which is great, and it certainly cleans your chimney. After a bit of huffing and puffing, hoiking the rods up and down a few times, we now have a sparkling clean chimney. Good things are, it's cheap, it works, it's not much of a hassle to cut a thread into the plastic, and, I'm pretty sure it's not gonna fall off of the rods. I did lose two bristles, but, In the grand scheme of things, I'm not going to worry about that. At under 7 quid, this is a bargain, it's just saved me 45 quid, so it's already more than paid for itself, and, it's still intact, so, there are a good few uses still in it Overall, if you need one and you are happy with a bit of grunt cutting your own thread into the plastic with your rods, you can't really go wrong with this ### ⭐⭐⭐⭐ Just the job *by M***G on 13 February 2024* Bought to clear gutters which it does although as someone else pointed out, it does stall a little at the joins on the guttering. It would have been nice if it had had its own pole, so I ended up buying drain rods to attach it to as suggested, to ensure it would have the same thread. Again, that's somewhat problematic because they're bendy so I only worked with 2 joined together. The only pitfall was that some of my roof tiles came down too far which meant that I couldn't use the head in those areas (garage in particular) as it was too high to get underneath. Still better than having to move the ladder so many times and I am sure that I will get better at using it as time passes. Bonus that I could use the head to scrape some of the moss down from the roof although it did not work quite as well at this angle due to it being a drop head. ### ⭐⭐⭐⭐⭐ Great item *by V***R on 29 November 2025* Ideal as a replacement for my drain cleaning rods.. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/48506696-silverline-double-worm-screw-head-50mm-868723](https://www.desertcart.co.uk/products/48506696-silverline-double-worm-screw-head-50mm-868723) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-04-23*