Unite Univent screws
Ventilation screws for ducts and fittings
Choose the right Univent screw for ventilation work
Our Univent screws are designed for joining thin-gauge materials in ventilation systems, including ducts and related fittings. The family is built for fast, practical assembly work and is intended for ventilation applications that need a reliable joining screw with a reduced drill point.
Within our Univent range, you can choose between standard ventilation screws, pan head variants and stainless screws for stainless ventilation ducts. The right choice usually depends on the joined material, the corrosion demands of the environment and whether a hexagon head or pan head is the better fit for the job.
Choose the right Univent screw type
Standard hexagon head ventilation screws
Choose our standard hexagon head Univent screws for routine joining of thin ventilation ducts and fittings. They are the core option in the family when you want a reduced drill point, straightforward installation and a ventilation screw range that covers both short and longer joining needs.
Pan head ventilation screws
Choose our pan head Univent screws when the same ventilation joining task is better served by a pan head with SQ2 drive rather than a hexagon head. They stay within the same thin-gauge duct and fitting use, but give you a different head format for the installation method you prefer.
See sizes and technical details for our pan head Univent screws on page 83 in the catalogue
Stainless screws for stainless ventilation ducts
Choose our stainless Univent screws when you are joining thin stainless ventilation materials or when the environment places higher demands on corrosion resistance. These ventilation screws are intended for duct and detail assembly in tougher conditions where standard ventilation screws are not the right fit.
See technical details for our stainless Univent screws on page 84 in the catalogue
Detailed Univent screw data in our catalogue
In our catalogue you can compare the Univent ventilation screw range in more detail, including head format, dimension, drill capacity and corrosion class. This is the best place to confirm which screw fits the duct, fitting or stainless application you are working with.
Use page 83 for the core Univent range and page 84 for stainless Univent screws for stainless ventilation ducts.
Need help choosing the right ventilation screw?
We help ventilation installers, contractors and technical buyers choose the right ventilation screws for the material, environment and installation method in front of them. If you need support with standard vs stainless, head format or the right screw for a specific duct detail, our team can help you move faster and choose with more confidence.
How do I choose between standard Univent screws and stainless Univent screws?
Choose stainless Univent screws when you are joining thin stainless ventilation materials or when the application needs a higher corrosion-resistant solution. Choose the standard Univent range for regular thin-gauge ventilation duct and fitting assembly where those demands are lower.
When is a hexagon head a better choice than a pan head?
Choose a hexagon head when that head and drive format suits your normal installation method best. Choose a pan head when you want the same basic Univent ventilation screw logic in a different head format within the same duct and fitting family.
What should I check before choosing a ventilation screw for duct assembly?
Start with the joined material, the material thickness and the environment. After that, confirm whether you need a standard or stainless screw, and whether a hexagon head or pan head is the better practical fit for the installation.
Are Univent screws suitable for airtight ventilation systems?
Yes. Our Univent screws are adapted for joining ducts and details in ventilation systems, and the family is stated to meet the requirements for sealing class D. That makes them relevant where airtight ductwork performance matters.
What can go wrong if the screw does not match the material or environment?
The wrong screw can create unnecessary installation problems and a weaker overall choice for the job. The most common risks are choosing a screw that does not match the thin-gauge material thickness, using a standard screw where stainless or higher corrosion resistance is the better fit, or selecting the wrong head format for the installation method.
Can Unite help us choose the right ventilation screw for a specific application?
Yes. We help customers choose the right ventilation screw based on the duct material, corrosion demands and the practical installation situation. That is often the fastest way to avoid trial-and-error on site and move directly to the right solution.