Product Overview
Coloured & Painted Flange Head Self-Tapping Screws – 25mm x 4.2mm – RAL Powder-Coated BZP Steel
These painted screws with flange heads are ideal for secure, corrosion-resistant fixing with a clean, professional finish. Used widely in the signage and hoarding industries, the 25mm length is perfect for fixing ACM panels and other exterior cladding materials.
Made from bright zinc plated (BZP) steel and powder-coated in your choice of RAL colour, these coloured screws blend in with surrounding surfaces and resist corrosion in external conditions.
Technical Specifications:
- Length: 25mm
- Thread Diameter: 4.2mm
- Material: BZP (Bright Zinc Plated) Steel
- Head Type: Flange Head
- Drive: Pozi #2
- Thread Type: Self-Tapping
- Point Type: Sharp Point
- Finish: RAL Powder-Coated (Painted)
Applications:
- Fixing ACM hoarding panels on development site fencing
- Attaching signs, fascias, cladding, and trim panels
- Used by:
- Sign fitters
- Hoarding contractors
- Cladding installers
Features & Benefits:
- RAL powder-coated finish matches surrounding surfaces
- Flange head spreads load and hides fixing point
- Weather-resistant and corrosion-proof when installed outdoors
- Magnetic steel core for easy use with power tools
- No specialist tools needed – fits standard Pozi #2 driver
Frequently Asked Questions
Are these suitable for ACM hoarding panels?
Yes — the 25mm length is commonly used by contractors to fix ACM panels securely to timber or steel framing.
Are these available in different RAL colours?
Yes — choose from a wide range of stocked RAL colours, or contact us for bespoke finishes.
Will these rust outdoors?
The BZP steel base combined with a powder-coated RAL finish offers excellent resistance to corrosion in external environments.
Do I need to drill a pilot hole first?
For most soft metals and plastics, no. For harder substrates, a pilot hole is recommended.
