Coloured 3.5 x 25mm Pan Head Self-Drilling Screws
These 3.5 x 25mm coloured pan head self-drilling screws are a light-duty fixing for metal-to-metal applications where the screw head remains visible and needs to match the surrounding surface. The domed pan head sits neatly proud of the material, providing a clean bearing surface and even clamping pressure without the need for countersinking.
The integrated Tek drill point cuts through light-gauge steel and aluminium up to 2.5mm thick without a pilot hole, and the self-tapping thread grips firmly once seated. Manufactured from carbon steel with a bright zinc plated (BZP) base and finished in a durable RAL powder coat, these screws are certified to BS EN 14566:2008 and BS EN 10666:2008 with an A1 fire classification.
Widely used across signage, shopfitting, window and door installation, and light metalwork, these are the screws that disappear into finished work. Where an uncoated zinc screw head breaks an otherwise clean installation - on aluminium flashings, frame trims, or equipment housings - a RAL colour-matched fixing keeps the detail consistent and the finish professional.
40 RAL Colour-Matched Finishes
Every 3.5 x 25mm pan head screw is electrostatically powder-coated and oven-cured to a RAL Classic colour standard. The result is a hard, uniform finish bonded directly to the screw head - resistant to scratching, chipping, UV fading, and general wear. Unlike wet paint, powder coat will not peel, blister, or thin at edges over time.
With 40 stocked RAL colours spanning whites, greys, blacks, blues, greens, reds, yellows, browns, and purples, these coloured self-drilling screws cover the most commonly specified colours across signage, fit-out, and light construction. Whether you are matching RAL 9005 Jet Black window trims, RAL 7016 Anthracite Grey aluminium flashings, or RAL 9010 Pure White retail display frames, the right colour is available for immediate dispatch.
Need a RAL colour outside the stocked range? We hold over 400 RAL Classic powders and can coat to any colour on request. Contact us with your RAL reference for availability and lead times.
Common Applications
3.5 x 25mm coloured pan head self-drilling screws are used wherever a light-duty, colour-matched fixing into thin metal is required:
- Signage - sign trays, internal flashings, channel letter mounting, and frame assemblies
- Shopfitting and retail fit-out - display framework, feature walls, and trim fixings
- Window and door installation - frame anchoring trims, ancillary fixings, and head flashings
- HVAC and ductwork - vent covers, duct sections, and lightweight framing components
- Metal fabrication - enclosures, brackets, equipment housings, and light panel assemblies
- Aluminium flashings and trims - copings, drip trays, and decorative cover strips
Quantity Pricing
Sold per screw with no minimum order - buy exactly the quantity your project requires:
| 1 - 199 | £0.15 per screw |
| 200+ | £0.14 per screw |
| 500+ | £0.13 per screw |
| 1,000+ | £0.12 per screw |
| 2,000+ | £0.11 per screw |
| 5,000+ | £0.10 per screw |
Specification
| Size | 3.5 x 25mm |
| Thread Diameter | 3.5mm |
| Length | 25mm |
| Max Drilling Thickness (MDT) | 2.5mm |
| Head Type | Pan head (domed) |
| Recess Type | Phillips (PH2) |
| Thread Type | Self-tapping |
| Point Type | Self-drilling (Tek) |
| Material | Carbon steel |
| Base Finish | Bright Zinc Plated (BZP) |
| Coating | RAL Classic powder coat (electrostatic, oven-cured) |
| Standards | BS EN 14566:2008 & BS EN 10666:2008 |
| Fire Classification | A1 (non-combustible) |
| Recommended Use | Interior and sheltered exterior applications |
| Colours Available | 40 stocked RAL colours (any RAL Classic on request) |
Frequently Asked Questions
What thickness of metal can these self-drilling screws fix through?
These 3.5 x 25mm pan head self-drilling screws have a maximum drilling thickness (MDT) of 2.5mm. The integrated drill point cuts through light-gauge steel, aluminium, and other thin metals without a pilot hole. For thicker steel substrates, consider a larger diameter self-drilling screw such as the 5.5mm range.
What is the difference between a self-drilling screw and a self-tapping screw?
A self-drilling screw has an integrated drill point (Tek point) that cuts its own hole into the substrate before the thread engages - no pilot hole required. A self-tapping screw forms or cuts a thread into a pre-drilled hole but cannot drill the initial hole itself. These 3.5 x 25mm screws are self-drilling: the point drills through the metal, and the self-tapping thread locks in behind it.
What driver bit do I need for these screws?
These pan head screws have a Phillips PH2 recess. Use a standard PH2 driver bit - apply firm, consistent pressure at controlled speed to avoid cam-out. Compatible with all cordless drivers and hand screwdrivers.
Can these coloured self-drilling screws be used outdoors?
These screws are designed primarily for interior and sheltered applications. The bright zinc plated base provides standard corrosion resistance, and the RAL powder coat adds UV, scratch, and weather protection that extends their usability into covered or semi-exposed external settings - for example beneath canopies, inside sign cases, or behind rainscreen cladding. For fully exposed outdoor fixings or higher corrosion environments, we recommend our silver organic or stainless steel self-drilling screw ranges.
Are these screws fire rated?
Yes. These self-drilling screws carry a Fire Classification of A1 (non-combustible) and are manufactured to BS EN 14566:2008 and BS EN 10666:2008.
Powder Coated Self-Drilling Screws
RALfixings specialise in colour-matched visible fixings for the signage, shopfitting, and construction sectors. Every self-drilling screw is powder-coated in-house using an electrostatic spray process, then oven-cured at 200°C to produce a hard, even finish that bonds directly to the screw head.
Powder coating outperforms wet paint in every measurable way. The electrostatically charged powder particles wrap around the domed pan head and into the Phillips recess, building a consistent film thickness that liquid paint cannot replicate. The cured finish is harder, more flexible, and far more resistant to impact, abrasion, and chemical exposure - lasting years beyond a conventional painted finish even in demanding interior environments where fixings are subject to regular cleaning, handling, and incidental contact.
Benefits of powder coated self-drilling screws:
- Scratch resistant - hard cured finish withstands handling, installation, and tool contact
- Rust resistant - BZP base plus powder coat provides dual corrosion protection
- UV resistant - colour stays true with no fading or chalking
- Weather resistant - will not peel, blister, or crack in sheltered exterior conditions
- Colourfast - RAL colour-matched finish maintains consistency over time
Available RAL Colours
3.5 x 25mm coloured pan head self-drilling screws are stocked in the following 40 RAL Classic colours. Select your colour from the dropdown above, or view the full RALfixings colour guide for additional RAL colours available on request.
- RAL 1013 Oyster White
- RAL 1015 Light Ivory
- RAL 1016 Sulphur Yellow
- RAL 1019 Grey Beige
- RAL 1020 Olive Yellow
- RAL 1023 Traffic Yellow
- RAL 1033 Dahlia Yellow
- RAL 1036 Pearl Gold
- RAL 3002 Carmine Red
- RAL 3004 Purple Red
- RAL 3009 Oxide Red
- RAL 3020 Traffic Red
- RAL 4006 Traffic Purple
- RAL 4007 Violet Purple
- RAL 4010 Telemagenta
- RAL 5003 Sapphire Blue
- RAL 5004 Black Blue
- RAL 5012 Light Blue
- RAL 5013 Cobalt Blue
- RAL 5023 Distant Blue
- RAL 5024 Pastel Blue
- RAL 6003 Olive Green
- RAL 6005 Moss Green
- RAL 6009 Fir Green
- RAL 6012 Black Green
- RAL 6016 Turquoise Green
- RAL 6024 Traffic Green
- RAL 6025 Fern Green
- RAL 6027 Light Green
- RAL 7009 Green Grey
- RAL 7016 Anthracite Grey
- RAL 7032 Pebble Grey
- RAL 7035 Light Grey
- RAL 7038 Agate Grey
- RAL 7042 Traffic Grey A
- RAL 8004 Copper Brown
- RAL 8008 Olive Brown
- RAL 8019 Grey Brown
- RAL 9005 Jet Black
- RAL 9010 Pure White
- RAL 9016 Traffic White
Coloured 3.5 x 25mm Pan Head Self-Drilling Screws
These 3.5 x 25mm coloured pan head self-drilling screws are a light-duty fixing for metal-to-metal applications where the screw head remains visible and needs to match the surrounding surface. The domed pan head sits neatly proud of the material, providing a clean bearing surface and even clamping pressure without the need for countersinking.
The integrated Tek drill point cuts through light-gauge steel and aluminium up to 2.5mm thick without a pilot hole, and the self-tapping thread grips firmly once seated. Manufactured from carbon steel with a bright zinc plated (BZP) base and finished in a durable RAL powder coat, these screws are certified to BS EN 14566:2008 and BS EN 10666:2008 with an A1 fire classification.
Widely used across signage, shopfitting, window and door installation, and light metalwork, these are the screws that disappear into finished work. Where an uncoated zinc screw head breaks an otherwise clean installation - on aluminium flashings, frame trims, or equipment housings - a RAL colour-matched fixing keeps the detail consistent and the finish professional.
40 RAL Colour-Matched Finishes
Every 3.5 x 25mm pan head screw is electrostatically powder-coated and oven-cured to a RAL Classic colour standard. The result is a hard, uniform finish bonded directly to the screw head - resistant to scratching, chipping, UV fading, and general wear. Unlike wet paint, powder coat will not peel, blister, or thin at edges over time.
With 40 stocked RAL colours spanning whites, greys, blacks, blues, greens, reds, yellows, browns, and purples, these coloured self-drilling screws cover the most commonly specified colours across signage, fit-out, and light construction. Whether you are matching RAL 9005 Jet Black window trims, RAL 7016 Anthracite Grey aluminium flashings, or RAL 9010 Pure White retail display frames, the right colour is available for immediate dispatch.
Need a RAL colour outside the stocked range? We hold over 400 RAL Classic powders and can coat to any colour on request. Contact us with your RAL reference for availability and lead times.
Common Applications
3.5 x 25mm coloured pan head self-drilling screws are used wherever a light-duty, colour-matched fixing into thin metal is required:
- Signage - sign trays, internal flashings, channel letter mounting, and frame assemblies
- Shopfitting and retail fit-out - display framework, feature walls, and trim fixings
- Window and door installation - frame anchoring trims, ancillary fixings, and head flashings
- HVAC and ductwork - vent covers, duct sections, and lightweight framing components
- Metal fabrication - enclosures, brackets, equipment housings, and light panel assemblies
- Aluminium flashings and trims - copings, drip trays, and decorative cover strips
Quantity Pricing
Sold per screw with no minimum order - buy exactly the quantity your project requires:
| 1 - 199 | £0.15 per screw |
| 200+ | £0.14 per screw |
| 500+ | £0.13 per screw |
| 1,000+ | £0.12 per screw |
| 2,000+ | £0.11 per screw |
| 5,000+ | £0.10 per screw |
Specification
| Size | 3.5 x 25mm |
| Thread Diameter | 3.5mm |
| Length | 25mm |
| Max Drilling Thickness (MDT) | 2.5mm |
| Head Type | Pan head (domed) |
| Recess Type | Phillips (PH2) |
| Thread Type | Self-tapping |
| Point Type | Self-drilling (Tek) |
| Material | Carbon steel |
| Base Finish | Bright Zinc Plated (BZP) |
| Coating | RAL Classic powder coat (electrostatic, oven-cured) |
| Standards | BS EN 14566:2008 & BS EN 10666:2008 |
| Fire Classification | A1 (non-combustible) |
| Recommended Use | Interior and sheltered exterior applications |
| Colours Available | 40 stocked RAL colours (any RAL Classic on request) |
Frequently Asked Questions
What thickness of metal can these self-drilling screws fix through?
These 3.5 x 25mm pan head self-drilling screws have a maximum drilling thickness (MDT) of 2.5mm. The integrated drill point cuts through light-gauge steel, aluminium, and other thin metals without a pilot hole. For thicker steel substrates, consider a larger diameter self-drilling screw such as the 5.5mm range.
What is the difference between a self-drilling screw and a self-tapping screw?
A self-drilling screw has an integrated drill point (Tek point) that cuts its own hole into the substrate before the thread engages - no pilot hole required. A self-tapping screw forms or cuts a thread into a pre-drilled hole but cannot drill the initial hole itself. These 3.5 x 25mm screws are self-drilling: the point drills through the metal, and the self-tapping thread locks in behind it.
What driver bit do I need for these screws?
These pan head screws have a Phillips PH2 recess. Use a standard PH2 driver bit - apply firm, consistent pressure at controlled speed to avoid cam-out. Compatible with all cordless drivers and hand screwdrivers.
Can these coloured self-drilling screws be used outdoors?
These screws are designed primarily for interior and sheltered applications. The bright zinc plated base provides standard corrosion resistance, and the RAL powder coat adds UV, scratch, and weather protection that extends their usability into covered or semi-exposed external settings - for example beneath canopies, inside sign cases, or behind rainscreen cladding. For fully exposed outdoor fixings or higher corrosion environments, we recommend our silver organic or stainless steel self-drilling screw ranges.
Are these screws fire rated?
Yes. These self-drilling screws carry a Fire Classification of A1 (non-combustible) and are manufactured to BS EN 14566:2008 and BS EN 10666:2008.
Powder Coated Self-Drilling Screws
RALfixings specialise in colour-matched visible fixings for the signage, shopfitting, and construction sectors. Every self-drilling screw is powder-coated in-house using an electrostatic spray process, then oven-cured at 200°C to produce a hard, even finish that bonds directly to the screw head.
Powder coating outperforms wet paint in every measurable way. The electrostatically charged powder particles wrap around the domed pan head and into the Phillips recess, building a consistent film thickness that liquid paint cannot replicate. The cured finish is harder, more flexible, and far more resistant to impact, abrasion, and chemical exposure - lasting years beyond a conventional painted finish even in demanding interior environments where fixings are subject to regular cleaning, handling, and incidental contact.
Benefits of powder coated self-drilling screws:
- Scratch resistant - hard cured finish withstands handling, installation, and tool contact
- Rust resistant - BZP base plus powder coat provides dual corrosion protection
- UV resistant - colour stays true with no fading or chalking
- Weather resistant - will not peel, blister, or crack in sheltered exterior conditions
- Colourfast - RAL colour-matched finish maintains consistency over time
Available RAL Colours
3.5 x 25mm coloured pan head self-drilling screws are stocked in the following 40 RAL Classic colours. Select your colour from the dropdown above, or view the full RALfixings colour guide for additional RAL colours available on request.
- RAL 1013 Oyster White
- RAL 1015 Light Ivory
- RAL 1016 Sulphur Yellow
- RAL 1019 Grey Beige
- RAL 1020 Olive Yellow
- RAL 1023 Traffic Yellow
- RAL 1033 Dahlia Yellow
- RAL 1036 Pearl Gold
- RAL 3002 Carmine Red
- RAL 3004 Purple Red
- RAL 3009 Oxide Red
- RAL 3020 Traffic Red
- RAL 4006 Traffic Purple
- RAL 4007 Violet Purple
- RAL 4010 Telemagenta
- RAL 5003 Sapphire Blue
- RAL 5004 Black Blue
- RAL 5012 Light Blue
- RAL 5013 Cobalt Blue
- RAL 5023 Distant Blue
- RAL 5024 Pastel Blue
- RAL 6003 Olive Green
- RAL 6005 Moss Green
- RAL 6009 Fir Green
- RAL 6012 Black Green
- RAL 6016 Turquoise Green
- RAL 6024 Traffic Green
- RAL 6025 Fern Green
- RAL 6027 Light Green
- RAL 7009 Green Grey
- RAL 7016 Anthracite Grey
- RAL 7032 Pebble Grey
- RAL 7035 Light Grey
- RAL 7038 Agate Grey
- RAL 7042 Traffic Grey A
- RAL 8004 Copper Brown
- RAL 8008 Olive Brown
- RAL 8019 Grey Brown
- RAL 9005 Jet Black
- RAL 9010 Pure White
- RAL 9016 Traffic White
Delivery & Shipping Terms
1. Where We Deliver
We currently ship to addresses within the United Kingdom only.
If you require delivery outside the UK, this must be arranged in advance. Where international delivery is agreed:
- You are fully responsible for all import duties, taxes, and customs charges, including any fees for customs paperwork.
- RALfixings accepts no liability for customs delays or additional costs associated with international shipments.
2. Delivery Timescales
Our products fall into two categories: in-stock and made-to-order (bespoke) items.
In-Stock Items
- Usually dispatched within 1–2 working days.
- Delivery typically takes 1–3 working days from the dispatch date.
Powder Coated / Made-to-Order Items
- Typically dispatched within 3–5 working days, but may take up to 10 working days during busy periods.
- Delivery typically takes 1–3 working days after dispatch.
All quoted times are estimates, not guarantees. Delivery times may be affected by stock availability, courier performance, weather, or other factors beyond our control.
3. Shipping Costs
- Shipping charges are based on order weight and destination.
- The exact shipping cost will be shown at checkout before payment.
- Additional shipping charges may apply to remote areas or multiple consignments.
4. Tracking and Responsibility
All orders are shipped via tracked courier services to ensure maximum security and visibility.
Once your order has been dispatched:
- You will receive an order dispatch email letting you know your order is on it's way, and another email from Royal Mail or the chosen courier with your tracking information. If you have supplied a UK phone number you may also recieve a tracking text from Royal Mail or the chosen courier.
- Responsibility for the goods passes to you upon dispatch.
- RALfixings is not liable for loss or damage in transit. Please contact the courier directly with your tracking number if issues arise.
5. Missed Deliveries or Delays
If your parcel cannot be delivered and is returned to us:
- We can resend it, but an additional delivery charge will apply.
- We are not responsible for courier delays or failed delivery attempts.
If your order hasn’t arrived within the estimated delivery window, please contact us as soon as possible at info@ralfixings.com.
Order Amendments & Cancellations
Changing an Order
We begin preparing orders quickly — especially made-to-order items.
- If you need to amend your order, please contact us within 24 hours or as soon as possible.
- After this period, it may be too late to make changes as your order may already be in production or dispatched.
- If you wish to add items, and your order hasn’t yet shipped, we may be able to combine them. Otherwise, a new order (and delivery charge) will apply.
Returns & Refunds
1. Your Right to Cancel – B2C Customers Only
Under the Consumer Contracts Regulations 2013, B2C customers have the right to cancel certain purchases made online within 14 days of delivery.
However, this does not apply to:
- Bespoke or made-to-order goods — including all powder coated screws and fixings manufactured specifically for your order.
If your order includes stocked items only, you may cancel and return those goods within 14 days of receipt. You must:
- Inform us in writing via email within 14 days.
- Return the goods at your own cost, in their original condition and packaging.
- Ensure the items are received by us within 30 days of delivery.
We recommend using a tracked and insured delivery service for any returns, as we are not responsible for items lost or damaged in return transit.
2. Faulty or Incorrect Items
If you receive goods that are:
- Faulty, or
- Incorrectly supplied (e.g. wrong size, colour, or product)
Please notify us within 30 days of receiving the goods.
We will:
- Replace the items where possible, or
- Issue a refund if replacement is not appropriate.
You may be asked to return the faulty items for inspection before a refund or exchange is processed.
Once screws have been installed or used, they cannot be returned or refunded, unless faulty.
3. Refund Processing
- Refunds (where applicable) are processed within 5 working days of receiving the returned items.
- Refunds are only issued to the original payment method.
- Refunds cannot be made to a different card or by other means.
- Delivery charges are non-refundable unless your entire order was cancelled before dispatch or the goods were faulty or incorrect.
Returns Address
To return items, please send them to:
FAO: Jon Lett
RALfixings Ltd
26a Queens Road
Knaphill
Surrey
GU212DX
B2B Orders & Restocking Fee
The rights described above apply primarily to consumers (B2C). If you are a business customer (B2B), statutory cancellation rights under the Consumer Contracts Regulations do not apply.
Returns from business customers are accepted at our sole discretion, and only if agreed in writing before the goods are returned.
All authorised B2B returns are subject to a 15% restocking fee, which will be deducted from the final refund amount. This fee covers the cost of inspection, repackaging, and administrative processing.
Returned goods must be:
- In resaleable, unused condition
- In their original packaging
- Returned at the buyer’s expense via a tracked delivery service
We do not accept returns of any bespoke or made-to-order products under any circumstances unless the item is faulty.
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Coloured 3.5 x 25mm Pan Head Self-Drilling Screws
These 3.5 x 25mm coloured pan head self-drilling screws are a light-duty fixing for metal-to-metal applications where the screw head remains visible and needs to match the surrounding surface. The domed pan head sits neatly proud of the material, providing a clean bearing surface and even clamping pressure without the need for countersinking.
The integrated Tek drill point cuts through light-gauge steel and aluminium up to 2.5mm thick without a pilot hole, and the self-tapping thread grips firmly once seated. Manufactured from carbon steel with a bright zinc plated (BZP) base and finished in a durable RAL powder coat, these screws are certified to BS EN 14566:2008 and BS EN 10666:2008 with an A1 fire classification.
Widely used across signage, shopfitting, window and door installation, and light metalwork, these are the screws that disappear into finished work. Where an uncoated zinc screw head breaks an otherwise clean installation - on aluminium flashings, frame trims, or equipment housings - a RAL colour-matched fixing keeps the detail consistent and the finish professional.
40 RAL Colour-Matched Finishes
Every 3.5 x 25mm pan head screw is electrostatically powder-coated and oven-cured to a RAL Classic colour standard. The result is a hard, uniform finish bonded directly to the screw head - resistant to scratching, chipping, UV fading, and general wear. Unlike wet paint, powder coat will not peel, blister, or thin at edges over time.
With 40 stocked RAL colours spanning whites, greys, blacks, blues, greens, reds, yellows, browns, and purples, these coloured self-drilling screws cover the most commonly specified colours across signage, fit-out, and light construction. Whether you are matching RAL 9005 Jet Black window trims, RAL 7016 Anthracite Grey aluminium flashings, or RAL 9010 Pure White retail display frames, the right colour is available for immediate dispatch.
Need a RAL colour outside the stocked range? We hold over 400 RAL Classic powders and can coat to any colour on request. Contact us with your RAL reference for availability and lead times.
Common Applications
3.5 x 25mm coloured pan head self-drilling screws are used wherever a light-duty, colour-matched fixing into thin metal is required:
- Signage - sign trays, internal flashings, channel letter mounting, and frame assemblies
- Shopfitting and retail fit-out - display framework, feature walls, and trim fixings
- Window and door installation - frame anchoring trims, ancillary fixings, and head flashings
- HVAC and ductwork - vent covers, duct sections, and lightweight framing components
- Metal fabrication - enclosures, brackets, equipment housings, and light panel assemblies
- Aluminium flashings and trims - copings, drip trays, and decorative cover strips
Quantity Pricing
Sold per screw with no minimum order - buy exactly the quantity your project requires:
| 1 - 199 | £0.15 per screw |
| 200+ | £0.14 per screw |
| 500+ | £0.13 per screw |
| 1,000+ | £0.12 per screw |
| 2,000+ | £0.11 per screw |
| 5,000+ | £0.10 per screw |
Specification
| Size | 3.5 x 25mm |
| Thread Diameter | 3.5mm |
| Length | 25mm |
| Max Drilling Thickness (MDT) | 2.5mm |
| Head Type | Pan head (domed) |
| Recess Type | Phillips (PH2) |
| Thread Type | Self-tapping |
| Point Type | Self-drilling (Tek) |
| Material | Carbon steel |
| Base Finish | Bright Zinc Plated (BZP) |
| Coating | RAL Classic powder coat (electrostatic, oven-cured) |
| Standards | BS EN 14566:2008 & BS EN 10666:2008 |
| Fire Classification | A1 (non-combustible) |
| Recommended Use | Interior and sheltered exterior applications |
| Colours Available | 40 stocked RAL colours (any RAL Classic on request) |
Frequently Asked Questions
What thickness of metal can these self-drilling screws fix through?
These 3.5 x 25mm pan head self-drilling screws have a maximum drilling thickness (MDT) of 2.5mm. The integrated drill point cuts through light-gauge steel, aluminium, and other thin metals without a pilot hole. For thicker steel substrates, consider a larger diameter self-drilling screw such as the 5.5mm range.
What is the difference between a self-drilling screw and a self-tapping screw?
A self-drilling screw has an integrated drill point (Tek point) that cuts its own hole into the substrate before the thread engages - no pilot hole required. A self-tapping screw forms or cuts a thread into a pre-drilled hole but cannot drill the initial hole itself. These 3.5 x 25mm screws are self-drilling: the point drills through the metal, and the self-tapping thread locks in behind it.
What driver bit do I need for these screws?
These pan head screws have a Phillips PH2 recess. Use a standard PH2 driver bit - apply firm, consistent pressure at controlled speed to avoid cam-out. Compatible with all cordless drivers and hand screwdrivers.
Can these coloured self-drilling screws be used outdoors?
These screws are designed primarily for interior and sheltered applications. The bright zinc plated base provides standard corrosion resistance, and the RAL powder coat adds UV, scratch, and weather protection that extends their usability into covered or semi-exposed external settings - for example beneath canopies, inside sign cases, or behind rainscreen cladding. For fully exposed outdoor fixings or higher corrosion environments, we recommend our silver organic or stainless steel self-drilling screw ranges.
Are these screws fire rated?
Yes. These self-drilling screws carry a Fire Classification of A1 (non-combustible) and are manufactured to BS EN 14566:2008 and BS EN 10666:2008.
Powder Coated Self-Drilling Screws
RALfixings specialise in colour-matched visible fixings for the signage, shopfitting, and construction sectors. Every self-drilling screw is powder-coated in-house using an electrostatic spray process, then oven-cured at 200°C to produce a hard, even finish that bonds directly to the screw head.
Powder coating outperforms wet paint in every measurable way. The electrostatically charged powder particles wrap around the domed pan head and into the Phillips recess, building a consistent film thickness that liquid paint cannot replicate. The cured finish is harder, more flexible, and far more resistant to impact, abrasion, and chemical exposure - lasting years beyond a conventional painted finish even in demanding interior environments where fixings are subject to regular cleaning, handling, and incidental contact.
Benefits of powder coated self-drilling screws:
- Scratch resistant - hard cured finish withstands handling, installation, and tool contact
- Rust resistant - BZP base plus powder coat provides dual corrosion protection
- UV resistant - colour stays true with no fading or chalking
- Weather resistant - will not peel, blister, or crack in sheltered exterior conditions
- Colourfast - RAL colour-matched finish maintains consistency over time
Available RAL Colours
3.5 x 25mm coloured pan head self-drilling screws are stocked in the following 40 RAL Classic colours. Select your colour from the dropdown above, or view the full RALfixings colour guide for additional RAL colours available on request.
- RAL 1013 Oyster White
- RAL 1015 Light Ivory
- RAL 1016 Sulphur Yellow
- RAL 1019 Grey Beige
- RAL 1020 Olive Yellow
- RAL 1023 Traffic Yellow
- RAL 1033 Dahlia Yellow
- RAL 1036 Pearl Gold
- RAL 3002 Carmine Red
- RAL 3004 Purple Red
- RAL 3009 Oxide Red
- RAL 3020 Traffic Red
- RAL 4006 Traffic Purple
- RAL 4007 Violet Purple
- RAL 4010 Telemagenta
- RAL 5003 Sapphire Blue
- RAL 5004 Black Blue
- RAL 5012 Light Blue
- RAL 5013 Cobalt Blue
- RAL 5023 Distant Blue
- RAL 5024 Pastel Blue
- RAL 6003 Olive Green
- RAL 6005 Moss Green
- RAL 6009 Fir Green
- RAL 6012 Black Green
- RAL 6016 Turquoise Green
- RAL 6024 Traffic Green
- RAL 6025 Fern Green
- RAL 6027 Light Green
- RAL 7009 Green Grey
- RAL 7016 Anthracite Grey
- RAL 7032 Pebble Grey
- RAL 7035 Light Grey
- RAL 7038 Agate Grey
- RAL 7042 Traffic Grey A
- RAL 8004 Copper Brown
- RAL 8008 Olive Brown
- RAL 8019 Grey Brown
- RAL 9005 Jet Black
- RAL 9010 Pure White
- RAL 9016 Traffic White
Recommended applications
A light-duty colour-matched self-drilling screw for interior and sheltered metal-to-metal fixings where the screw head stays visible. The domed pan head provides a clean bearing surface and even clamping across thin sheet materials without countersinking, while the RAL powder coat matches the surrounding surface for a discreet, finished appearance.
The integrated Tek drill point cuts through light-gauge steel and aluminium up to 2.5mm thick without a pilot hole. Drive with a PH2 Phillips bit at controlled speed — apply firm pressure to prevent cam-out and avoid overdriving into thin substrates.
Designed primarily for interior and sheltered exterior use. For fully exposed outdoor fixings or higher corrosion environments, consider our silver organic or stainless steel self-drilling screw ranges. For heavier gauge steel beyond 2.5mm, move up to a 5.5mm diameter self-drilling screw.
Suitable for
In Stock
| Bulk Discount | ||
|---|---|---|
| 200+ | ||
| 500+ | ||
| 1000+ | ||
| 2000+ | ||
| 5000+ | ||
