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🔧 Unlock the power of precision drain clearing — don’t let clogs slow your flow!
The Silverline Double Worm Screw Head 50mm is a robust, zinc passivated steel fastener designed specifically for domestic drain cleaning. Its double worm screw head efficiently breaks up and extracts obstructions, while its compatibility with Silverline and most third-party drain rod sets ensures versatile, hassle-free use. Lightweight and corrosion-resistant, it’s the essential tool for maintaining smooth, clog-free drains.

| ASIN | B000NBVCU8 |
| Best Sellers Rank | 195,843 in DIY & Tools ( See Top 100 in DIY & Tools ) 486 in Drain Cleaning Equipment 883 in Scrapers 22,341 in Nails, Screws & Fasteners |
| Brand | Silverline |
| Brand Name | Silverline |
| Colour | Silber |
| Compatible Groove Diameter | 1.6 Centimeters |
| Country Of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 239 Reviews |
| Drive System | Pozidriv |
| Exterior Finish | Zinc |
| 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 |
| Head style | Double Head |
| Included Components | 1 x Double worm screw |
| Item Diameter | 1.6 Centimetres |
| Item Dimensions | 15 x 5 x 7 centimetres |
| Item Weight | 0.17 Pounds |
| Item dimensions L x W x H | 15 x 5 x 7 centimetres |
| Manufacturer | SLTL4 |
| Manufacturer Part Number | 868723 |
| Material | Steel , Zinc-passivated |
| Material Type | Steel, Zinc-passivated |
| Metal | Alloy Steel |
| Metal type | Alloy Steel |
| Model Number | 868723 |
| Number Of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Outside Diameter | 5 Centimetres |
| Screw Head Style | Double Head |
| Set Name | Set of 1 classic screw |
| Set Screw Thread Type | Acme threads |
| Size | 50 mm |
| Thread Class | 2B |
| Thread Coverage | Fully Threaded |
| Thread Style | Right Hand |
| Thread Type | Double thread |
| UPC | 002147483647 |
| Unit Count | 1.0 count |
A**K
works well
good value product quick delivery
P**R
Delivered OK as part of another order. Seems mechanically ...
Delivered OK as part of another order. Seems mechanically robust. It could do with a screw hole that could be used to also enable it to be attached to other types of rods, other that threaded rods.
D**E
Well made, easy to use and very good value
I bought this at a cost of £3.05 (21/04/2017) through Amazon with it being referred to as an ADD-ON item which applies to Amazon purchases with a value to £20 plus. Strangely all the add on bits arrived today 21/04/2017 with no delivery of the Prime item and it's promised next day delivery promise to amazon prime members. This just reinforces my experiences that the next day promise cannot be relied on. The double worm screw screwed unto my drain rods with no problem what ever. The fit was both nice and tight and deep so that I had no fear of the dropper undoing itself in the event that I had to manipulate the rod in an unwinding manner. This is made of what appears to be a decent quality metal. The joins to the screw on head are well made. This item was delivered alongside other purchases in a super fast less than 24 hours from order to delivery. I have had it in my possession for less than 8 hours and having used it at my sons home, have already completed a job and saved a potential fortune OVERALL, very good value, well worth the purchase cost especially as a delivered so promptly item.
V**R
Great item
Ideal as a replacement for my drain cleaning rods..
N**E
Compatible and rugged
Screwed on to my existing rods - was able to remove mud and roots from blocked drainage channel
R**D
drain cleaning tool
It did a good job of clearing a 4 inch concrete ground drain blocked with mud and leaves. Important not to turn backwards, or it will unscrew and get lost in the drain.
B**G
Three Stars
Fit for purpose
J**N
Will it fit onto existing rods
Well made, good for occasional use.
C**N
Solide mais....pas le bon pas de vis !
Reçu rapidement, mais ne s'adapte pas facilement sur les cannes que j'ai, j'ai dû modifier une canne pour le fixer de manière solide. Car le pas de vis est un pas anglais qui ne correspond pas au pas de vis des cannes de ramonage françaises.
C**E
Fa ottimamente il suo lavoro
Il prodotto è esattamente come descritto ma occhio al passo della filettatura non è per tutte le aste e io ho dovuto fare una modifica e saldatura
G**B
pas fiable
Après 10' de travail le tube de fixation s'est cassé Acier cochonium De plus, il oublie de nous signalé que le filetage est NON CORFORME au standard qualité déplorable
M**N
égout
Pour déboucher les canalisations enterrées ou déboucher une cheminée à cause de nids d'oiseaux , aucun problèmes avec mes cannes pour le raccorder
S**4
Les informations détaillées ne le sont pas assez
Cette vrille est certainement très bien, mais le manque d'explications fait que je ne peux pas la connecter à mes cannes, même si mon modèle est standard. Donc je grette mon achat.
Trustpilot
2 months ago
3 weeks ago