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Bi-Metal Composite Panel Screws for Steel
Bi-metal composite panel screws for fixing cladding and sandwich panels to light section steel, combining stainless steel corrosion resistance with strong self-drilling performance.
Timco Bi-Metal Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – 5.5/6.3mm x 100mm – Box of 100
In stock
£76.33 ex VAT(£91.59 inc VAT)
SKU:
BMLH100W16
Timco Bi-Metal Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – 5.5/6.3mm x 70mm – Box of 100
Out of stock
£71.91 ex VAT(£86.29 inc VAT)
SKU:
BMLH70W16
Bi-Metal Composite Panel Screws for Steel
Bi-metal composite panel screws are designed for fixing composite and sandwich panels to light section steel, combining strong drilling performance with excellent corrosion resistance for exposed external applications.
Why choose bi-metal composite panel screws?
- A2 stainless steel body for high corrosion resistance
- Hardened carbon steel drill tip for reliable drilling into steel
- Designed for composite panels fixed to light section steel
- Hex head for secure, controlled installation
- Ideal for exposed cladding and long-life external use
What are bi-metal composite panel screws?
Bi-metal composite panel screws are specialist fixings made from two different materials. The main body is A2-304 austenitic stainless steel, which provides strong corrosion resistance. The drill point is hardened carbon steel, which gives the screw the strength it needs to drill into light section steel.
As a result, this combination makes bi-metal screws a practical choice where you need both drilling performance and long-term durability. They are commonly used on external cladding and insulated panel systems where standard coated screws may not offer the same level of protection.
Where are bi-metal panel screws used?
In practice, these screws are used where composite panels are fixed to light section steel, especially in environments where corrosion resistance is important.
- External cladding systems
- Sandwich panel installations
- Industrial and commercial buildings
- Exposed external environments
- Long-life roofing and wall systems
Why use bi-metal instead of coated screws?
Bi-metal screws are a stronger choice where long-term corrosion resistance matters. The stainless steel body helps protect the fixing in exposed environments, while the hardened drill tip still allows fast installation into steel.
Coated screws are often more cost-effective for standard external use. However, for more demanding environments or projects where durability is the priority, bi-metal screws are usually the better option.
Designed for light section steel
These screws are designed for fixing into light section steel up to 5mm thick. This makes them suitable for many common composite panel and cladding applications where speed, strength, and corrosion resistance are all important.
Related Roofing & Construction Screws
- Exterior Composite Panel Screws – for general external cladding and roofing applications
- Stitching Screws – for sheet-to-sheet connections in panel systems
Bi-Metal Composite Panel Screws FAQs
What are bi-metal screws?
Bi-metal screws combine a stainless steel body with a hardened carbon steel drill tip. This gives them strong corrosion resistance and reliable drilling performance.
When should I use bi-metal composite panel screws?
Use them when fixing composite panels in exposed or demanding external environments where long-term corrosion resistance is important.
Can bi-metal screws drill into steel?
Yes, the hardened carbon steel drill tip is designed to drill into light section steel without pre-drilling.
Are bi-metal screws better than coated screws?
For harsher environments and longer service life, bi-metal screws are often the better choice. For standard external use, coated screws can still be suitable.
