Marutex ventilation screws
Ventilation screws for stainless steel ducts
Ventilation screws for stainless steel ductwork
Our Marutex ventilation screws are made for joining stainless steel ducts and ventilation details where you need a screw that is matched to thinner stainless steel materials. The TG range is a tight, specialist family rather than a broad mixed category.
On this page we keep the focus on the stainless TG range only. That makes it easier for ventilation installers, fabricators and technical buyers to choose the right length faster when the job calls for a dedicated ventilation screw rather than a more general sheet-metal fastener.
Detailed ventilation screw data in our catalogue
The catalogue below gives the exact TG designations, dimensions and drill capacity for our Marutex ventilation screws. Use it when you need to confirm whether TG10, TG12 or TG14 is the better fit for the duct section or ventilation detail you are joining.
This page is intentionally tight in scope. Even though other fasteners appear nearby in the catalogue layout, the focus here is only on our stainless ventilation screws for ducts and ventilation details.
Need help choosing the right ventilation screw?
If you are specifying screws for stainless steel ducts or ventilation details and want to avoid the wrong length or the wrong fastener family, we can help. Our team can guide you to the right Marutex ventilation screw for your application, build-up and project needs.
What are these ventilation screws designed for?
They are designed for joining ducts and details in ventilation systems. More specifically, the TG range is presented as a stainless steel Marutex screw for thinner stainless steel materials, which makes the page scope much tighter than general-purpose duct screws.
Do Marutex ventilation screws meet tightness class D?
Yes. The TG ventilation screws are stated to fulfil tightness class D, which is a key reason they belong on a dedicated ventilation-screw page rather than being folded into a broader sheet-metal category.
How do I choose between TG10, TG12 and TG14?
The main choice is the screw length for the materials you are joining. The range is offered as TG10 4.2x9.5, TG12 4.2x13 and TG14 4.2x16, so the right option depends on your build-up and how much length you need through the duct section or detail.
Can I use these ventilation screws for thicker materials as well?
These screws are presented for thinner stainless steel materials, and the TG items are listed with a 2x1.0 mm drill capacity. If your build-up is heavier than that, do not assume the same screw is still correct — it is better to check the application before ordering.
When should I choose Marutex ventilation screws instead of a more general ventilation screw?
Choose them when the job involves stainless steel ducts or stainless ventilation details and you want a screw that is specifically presented for that material and application. If you are working in a broader non-stainless ventilation setup, another Unite fastener family may be the better fit.
Can Unite help us choose the right ventilation screw for our duct system?
Yes. If you are unsure which TG length is most suitable, or whether this Marutex range is the right family for your duct application, we can help you narrow it down before you order.