Coloured 13mm x 4.2mm Wafer Head Self-Tapping Screws
These 13mm x 4.2mm wafer head self-tapping screws are a short, low-profile fixing for stitching thin gauge sheet metal and metal track together without a pilot hole. The sharp point pierces steel up to 0.6mm thick, and the Phillips PH2 recess drives with the bit already in every fixer’s kit.
The wafer head spreads the clamping load over a wide, flat bearing surface, which helps stop the screw pulling through thin metal, and it sits low enough that panels, trims and plasterboard can lie flush over it. They are the screw behind drywall and ceiling track systems, and with a RAL powder coat they also work where the fixing stays on show.
Powder coated to a RAL Classic colour of your choice, the head blends into the surface it is fixed to instead of showing up as a row of bright zinc dots. They suit dry-liners, metal framers, signage and display fabricators to sheet-metal workers.
40 RAL Colour-Matched Finishes
Every screw is electrostatically powder coated in-house and oven cured to a RAL Classic standard, giving a hard, uniform finish that resists scratching during installation and holds its colour once the job is finished. Unlike wet paint, it will not peel or chip when the screw is driven.
Forty-one RAL colours are stocked for dispatch, covering whites, yellows, reds, purples, blues, greens, greys, browns and blacks. Whether you are matching RAL 9010 Pure White track, RAL 7016 Anthracite Grey trims or a bespoke brand colour, the right shade is available. If you need a RAL outside the stocked set, we hold over 400 RAL Classic powders and can coat to order. Contact us with your RAL reference for availability and lead times.
Matching the Screw to the Metal
The limit on this screw is steel thickness. The sharp point pierces thin gauge metal up to 0.6mm, but it has no drill flute. For thicker steel, drill a pilot hole first or choose a self-drilling screw.
Common Applications
4.2 x 13mm coloured wafer head self-tapping screws are used wherever thin gauge metal needs a flat, colour-matched fixing:
- Stitching drywall and ceiling track, channel and stud sections together
- Joining overlapping thin gauge sheet metal
- Fixing sheet-metal trims, flashings and cover strips
- Signage and display fabrication in thin gauge metal
- Low-clearance fixings where a pan head would catch a panel or stop plasterboard sitting flat
Specification
| Size (metric) | 4.2 x 13mm |
| Size (imperial) | 8 x ½″ |
| Head Type | Wafer (low profile) |
| Drive | Phillips PH2 |
| Point Type | Sharp |
| Thread Type | Self-tapping |
| Max Steel Thickness | 0.6mm (without pre-drilling) |
| Material | Carbon steel |
| Base Finish | Zinc plated (BZP) |
| Coating | RAL Classic powder coat |
| Substrates | Thin sheet metal, metal drywall track |
| Base Screw Standard | BS EN 14566:2008 |
| Pack Sizes | 25 to 1,000 pieces |
| Colours Available | 41 stocked RAL colours (any RAL Classic on request) |
Frequently Asked Questions
What are these screws used for?
Stitching thin gauge sheet metal and metal track together without a pilot hole: drywall and ceiling track systems, overlapping sheet-metal panels, trims and flashings. The low-profile head comes in a RAL colour so the fixing matches the finish where it stays visible.
What is the maximum steel thickness?
0.6mm without pre-drilling. The sharp point pierces thin gauge metal but has no drill flute, so for anything thicker you need to drill a pilot hole first or use a self-drilling screw.
Are these self-tapping or self-drilling?
They are sharp-point self-tapping screws. The point pierces thin gauge steel up to 0.6mm and the thread forms its own mating thread, which is why they are often sold alongside self-drilling wafer head screws for drywall track. They are not a replacement for a self-drilling screw on thicker steel.
Why choose a wafer head?
A wafer head spreads the clamping load over a wider area than a standard pan head, which reduces the risk of pulling through thin metal, and its flat top sits low so panels, trims and plasterboard can sit flush over the fixing.
What drive bit do I need?
A PH2 Phillips bit. Drive at controlled speed and stop as soon as the head sits flat, because overdriving strips the thread in thin metal.
Can I choose a specific RAL colour?
Yes. 40 RAL colours are stocked for dispatch, and these screws can be powder coated to any RAL Classic colour on request.
Powder Coated Screws
Colour-matched fixings are all we do. Powder coating in-house means the RAL reference you order is the RAL reference on the screw. The powder is applied electrostatically and heat cured, which produces a harder, thicker and more durable finish than wet paint.
Benefits of powder coated screws:
- Scratch resistant
- Rust resistant
- UV resistant
- Weather resistant
- Colourfast
Available RAL Colours
These 13mm x 4.2mm coloured wafer head self-tapping screws are stocked in the following 41 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 13mm x 4.2mm Wafer Head Self-Tapping Screws
These 13mm x 4.2mm wafer head self-tapping screws are a short, low-profile fixing for stitching thin gauge sheet metal and metal track together without a pilot hole. The sharp point pierces steel up to 0.6mm thick, and the Phillips PH2 recess drives with the bit already in every fixer’s kit.
The wafer head spreads the clamping load over a wide, flat bearing surface, which helps stop the screw pulling through thin metal, and it sits low enough that panels, trims and plasterboard can lie flush over it. They are the screw behind drywall and ceiling track systems, and with a RAL powder coat they also work where the fixing stays on show.
Powder coated to a RAL Classic colour of your choice, the head blends into the surface it is fixed to instead of showing up as a row of bright zinc dots. They suit dry-liners, metal framers, signage and display fabricators to sheet-metal workers.
40 RAL Colour-Matched Finishes
Every screw is electrostatically powder coated in-house and oven cured to a RAL Classic standard, giving a hard, uniform finish that resists scratching during installation and holds its colour once the job is finished. Unlike wet paint, it will not peel or chip when the screw is driven.
Forty-one RAL colours are stocked for dispatch, covering whites, yellows, reds, purples, blues, greens, greys, browns and blacks. Whether you are matching RAL 9010 Pure White track, RAL 7016 Anthracite Grey trims or a bespoke brand colour, the right shade is available. If you need a RAL outside the stocked set, we hold over 400 RAL Classic powders and can coat to order. Contact us with your RAL reference for availability and lead times.
Matching the Screw to the Metal
The limit on this screw is steel thickness. The sharp point pierces thin gauge metal up to 0.6mm, but it has no drill flute. For thicker steel, drill a pilot hole first or choose a self-drilling screw.
Common Applications
4.2 x 13mm coloured wafer head self-tapping screws are used wherever thin gauge metal needs a flat, colour-matched fixing:
- Stitching drywall and ceiling track, channel and stud sections together
- Joining overlapping thin gauge sheet metal
- Fixing sheet-metal trims, flashings and cover strips
- Signage and display fabrication in thin gauge metal
- Low-clearance fixings where a pan head would catch a panel or stop plasterboard sitting flat
Specification
| Size (metric) | 4.2 x 13mm |
| Size (imperial) | 8 x ½″ |
| Head Type | Wafer (low profile) |
| Drive | Phillips PH2 |
| Point Type | Sharp |
| Thread Type | Self-tapping |
| Max Steel Thickness | 0.6mm (without pre-drilling) |
| Material | Carbon steel |
| Base Finish | Zinc plated (BZP) |
| Coating | RAL Classic powder coat |
| Substrates | Thin sheet metal, metal drywall track |
| Base Screw Standard | BS EN 14566:2008 |
| Pack Sizes | 25 to 1,000 pieces |
| Colours Available | 41 stocked RAL colours (any RAL Classic on request) |
Frequently Asked Questions
What are these screws used for?
Stitching thin gauge sheet metal and metal track together without a pilot hole: drywall and ceiling track systems, overlapping sheet-metal panels, trims and flashings. The low-profile head comes in a RAL colour so the fixing matches the finish where it stays visible.
What is the maximum steel thickness?
0.6mm without pre-drilling. The sharp point pierces thin gauge metal but has no drill flute, so for anything thicker you need to drill a pilot hole first or use a self-drilling screw.
Are these self-tapping or self-drilling?
They are sharp-point self-tapping screws. The point pierces thin gauge steel up to 0.6mm and the thread forms its own mating thread, which is why they are often sold alongside self-drilling wafer head screws for drywall track. They are not a replacement for a self-drilling screw on thicker steel.
Why choose a wafer head?
A wafer head spreads the clamping load over a wider area than a standard pan head, which reduces the risk of pulling through thin metal, and its flat top sits low so panels, trims and plasterboard can sit flush over the fixing.
What drive bit do I need?
A PH2 Phillips bit. Drive at controlled speed and stop as soon as the head sits flat, because overdriving strips the thread in thin metal.
Can I choose a specific RAL colour?
Yes. 40 RAL colours are stocked for dispatch, and these screws can be powder coated to any RAL Classic colour on request.
Powder Coated Screws
Colour-matched fixings are all we do. Powder coating in-house means the RAL reference you order is the RAL reference on the screw. The powder is applied electrostatically and heat cured, which produces a harder, thicker and more durable finish than wet paint.
Benefits of powder coated screws:
- Scratch resistant
- Rust resistant
- UV resistant
- Weather resistant
- Colourfast
Available RAL Colours
These 13mm x 4.2mm coloured wafer head self-tapping screws are stocked in the following 41 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.
What our customers say
Posted by Duncan on 18th Dec 2024
Lovely little screws that finish off flashes nicely. RAL colour matched
SIMPLE TEST - CAN YOU SEE THIS?
If you see this, the partial is loading.
Coloured 13mm x 4.2mm Wafer Head Self-Tapping Screws
These 13mm x 4.2mm wafer head self-tapping screws are a short, low-profile fixing for stitching thin gauge sheet metal and metal track together without a pilot hole. The sharp point pierces steel up to 0.6mm thick, and the Phillips PH2 recess drives with the bit already in every fixer’s kit.
The wafer head spreads the clamping load over a wide, flat bearing surface, which helps stop the screw pulling through thin metal, and it sits low enough that panels, trims and plasterboard can lie flush over it. They are the screw behind drywall and ceiling track systems, and with a RAL powder coat they also work where the fixing stays on show.
Powder coated to a RAL Classic colour of your choice, the head blends into the surface it is fixed to instead of showing up as a row of bright zinc dots. They suit dry-liners, metal framers, signage and display fabricators to sheet-metal workers.
40 RAL Colour-Matched Finishes
Every screw is electrostatically powder coated in-house and oven cured to a RAL Classic standard, giving a hard, uniform finish that resists scratching during installation and holds its colour once the job is finished. Unlike wet paint, it will not peel or chip when the screw is driven.
Forty-one RAL colours are stocked for dispatch, covering whites, yellows, reds, purples, blues, greens, greys, browns and blacks. Whether you are matching RAL 9010 Pure White track, RAL 7016 Anthracite Grey trims or a bespoke brand colour, the right shade is available. If you need a RAL outside the stocked set, we hold over 400 RAL Classic powders and can coat to order. Contact us with your RAL reference for availability and lead times.
Matching the Screw to the Metal
The limit on this screw is steel thickness. The sharp point pierces thin gauge metal up to 0.6mm, but it has no drill flute. For thicker steel, drill a pilot hole first or choose a self-drilling screw.
Common Applications
4.2 x 13mm coloured wafer head self-tapping screws are used wherever thin gauge metal needs a flat, colour-matched fixing:
- Stitching drywall and ceiling track, channel and stud sections together
- Joining overlapping thin gauge sheet metal
- Fixing sheet-metal trims, flashings and cover strips
- Signage and display fabrication in thin gauge metal
- Low-clearance fixings where a pan head would catch a panel or stop plasterboard sitting flat
Specification
| Size (metric) | 4.2 x 13mm |
| Size (imperial) | 8 x ½″ |
| Head Type | Wafer (low profile) |
| Drive | Phillips PH2 |
| Point Type | Sharp |
| Thread Type | Self-tapping |
| Max Steel Thickness | 0.6mm (without pre-drilling) |
| Material | Carbon steel |
| Base Finish | Zinc plated (BZP) |
| Coating | RAL Classic powder coat |
| Substrates | Thin sheet metal, metal drywall track |
| Base Screw Standard | BS EN 14566:2008 |
| Pack Sizes | 25 to 1,000 pieces |
| Colours Available | 41 stocked RAL colours (any RAL Classic on request) |
Frequently Asked Questions
What are these screws used for?
Stitching thin gauge sheet metal and metal track together without a pilot hole: drywall and ceiling track systems, overlapping sheet-metal panels, trims and flashings. The low-profile head comes in a RAL colour so the fixing matches the finish where it stays visible.
What is the maximum steel thickness?
0.6mm without pre-drilling. The sharp point pierces thin gauge metal but has no drill flute, so for anything thicker you need to drill a pilot hole first or use a self-drilling screw.
Are these self-tapping or self-drilling?
They are sharp-point self-tapping screws. The point pierces thin gauge steel up to 0.6mm and the thread forms its own mating thread, which is why they are often sold alongside self-drilling wafer head screws for drywall track. They are not a replacement for a self-drilling screw on thicker steel.
Why choose a wafer head?
A wafer head spreads the clamping load over a wider area than a standard pan head, which reduces the risk of pulling through thin metal, and its flat top sits low so panels, trims and plasterboard can sit flush over the fixing.
What drive bit do I need?
A PH2 Phillips bit. Drive at controlled speed and stop as soon as the head sits flat, because overdriving strips the thread in thin metal.
Can I choose a specific RAL colour?
Yes. 40 RAL colours are stocked for dispatch, and these screws can be powder coated to any RAL Classic colour on request.
Powder Coated Screws
Colour-matched fixings are all we do. Powder coating in-house means the RAL reference you order is the RAL reference on the screw. The powder is applied electrostatically and heat cured, which produces a harder, thicker and more durable finish than wet paint.
Benefits of powder coated screws:
- Scratch resistant
- Rust resistant
- UV resistant
- Weather resistant
- Colourfast
Available RAL Colours
These 13mm x 4.2mm coloured wafer head self-tapping screws are stocked in the following 41 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 colour-matched wafer head self-tapping screw for stitching thin gauge sheet metal and metal track where the fixing stays visible. The sharp point pierces steel up to 0.6mm without a pilot hole, and the wide, flat wafer head sits low enough that panels, trims and plasterboard can lie flush over it.
Drive with a PH2 Phillips bit at controlled speed and stop as soon as the head seats flat. Overdriving strips the thread in thin metal. Hold the layers tight together before driving, and at 13mm long check the clearance behind the metal before you fix.
Not suitable for steel thicker than 0.6mm - there is no drill flute, so thicker material needs a pilot hole or a self-drilling screw. The zinc plated carbon steel core suits dry interiors and sheltered exteriors; for constantly wet or coastal sites choose a stainless fixing. This product covers all 41 stocked RAL colours.
Suitable for
In Stock
| Bulk Discount | ||
|---|---|---|
| 200+ | ||
| 500+ | ||
| 1000+ | ||
| 2000+ | ||
| 5000+ | ||
