Exterior Composite Panel Screws for Steel

Exterior composite panel screws for fixing cladding and sandwich panels to light section steel, designed for reliable external performance and cost-effective corrosion resistance.

Timco Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – Exterior – 5.5/6.3mm x 115mm – Box of 100

Size : 5.5/6.3mm x 115mm
Pack Quantity : 100
£21.66 ex VAT(£25.99 inc VAT)

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£21.66 ex VAT(£25.99 inc VAT)
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SKU: LH115W16B

Timco Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – Exterior – 5.5/6.3mm x 150mm – Box of 100

Size : 5.5/6.3mm x 150mm
Pack Quantity : 100
£27.16 ex VAT(£32.59 inc VAT)

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£27.16 ex VAT(£32.59 inc VAT)
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SKU: LH150W16B

Timco Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – Exterior – 5.5/6.3mm x 180mm – Box of 50

Size : 5.5/6.3mm x 180mm
Pack Quantity : 50
£20.74 ex VAT(£24.89 inc VAT)

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£20.74 ex VAT(£24.89 inc VAT)
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SKU: LH180W16B

Timco Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – Exterior – 5.5/6.3mm x 82mm – Box of 100

Size : 5.5/6.3mm x 82mm
Pack Quantity : 100
£13.33 ex VAT(£15.99 inc VAT)

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SKU: LH82W16B

Timco Composite Panel Screws – Self-Drilling – Hex – EPDM Washer – Exterior – 5.5/6.3mm x 98mm – Box of 100

Size : 5.5/6.3mm x 98mm
Pack Quantity : 100
£15.74 ex VAT(£18.89 inc VAT)

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£15.74 ex VAT(£18.89 inc VAT)
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SKU: LH98W16B

Exterior Composite Panel Screws for Steel

Exterior composite panel screws are designed for fixing composite and sandwich panels to light section steel, offering reliable drilling performance and corrosion resistance for general external cladding applications.

Why choose exterior composite panel screws?

  • Exterior coating resists over 500 hours of salt spray
  • Self-drilling point for fixing into light section steel
  • Hex head for secure, controlled installation
  • Designed for composite panels fixed to steel up to 5mm
  • Reliable and cost-effective for standard external use

What are exterior composite panel screws?

Exterior composite panel screws are specialist fixings designed to attach composite and sandwich panels to light section steel. They use a carbon steel body with a corrosion-resistant exterior coating, which helps protect the fixing in normal outdoor environments.

Each screw features a self-drilling point, hex head, and split thread. As a result, installation is quicker and more controlled, while the split thread helps deliver a secure fixing into steel.

Where are exterior composite panel screws used?

These screws are commonly used where composite panels are fixed to light section steel on standard external building applications.

  • External cladding systems
  • Sandwich panel installations
  • Agricultural and industrial buildings
  • Commercial wall systems
  • General external roofing and cladding projects

Why use exterior coated screws instead of bi-metal?

Exterior coated screws are a practical and cost-effective choice for standard external applications. They provide good corrosion resistance and strong drilling performance where conditions are not overly aggressive.

Bi-metal screws are better suited to exposed or harsh environments where maximum corrosion resistance is needed. For general external cladding work, however, exterior coated screws are often the more economical 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.

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Exterior Composite Panel Screws FAQs

What are exterior composite panel screws?
They are self-drilling screws designed for fixing composite and sandwich panels to light section steel in standard external applications.

When should I use exterior coated panel screws?
Use them for general external cladding and roofing work where good corrosion resistance is needed without moving to a premium bi-metal fixing.

Can these screws drill into steel?
Yes, they are designed with a self-drilling point for fixing into light section steel up to 5mm thick.

Are coated screws as corrosion resistant as bi-metal screws?
No, bi-metal screws offer a higher level of corrosion resistance. Exterior coated screws are better suited to standard outdoor environments.