RoofingPro RS50 Roofing Screws - 50mm - RAL 9016 Traffic White

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Description

RoofingPro™ RS50 in RAL 9016 Traffic White: a 50mm x 5.5mm hex head self-drilling screw with a colour-matched EPDM sealing washer, made for fixing profiled metal sheets to light section steel.

The 50mm length is the workhorse of the range. It clears the crown of most box and trapezoidal profiles, passes through insulation build-ups and still lands 35mm of effective thread into the purlin behind.

Case and core hardened carbon steel with a bright zinc plated shank gives the drill point the hardness to cut steel and the shank the corrosion resistance to stay serviceable behind the sheet.

The powder coating is applied in-house to both the head and the washer, which is the part of this product that is genuinely difficult to do well and the reason most suppliers do not.

Colour Matched in RAL 9016 Traffic White

RAL 9016 Traffic White is a bright clean neutral white. Traffic white is the crisper, cooler white used across retail units, commercial rooflines, PVCu window and door systems, fascias, soffits and shopfitting. It reads brighter and more contemporary than RAL 9010.

RAL 9016 is one of the two most requested whites in the UK fixings market. On white cladding and trim, an uncoated fixing head shows as a dark speck from ground level across an entire elevation.

The powder coated head and washer are finished to the same RAL reference as the sheet, so the fixing reads as part of the panel rather than a fastener sitting on it. Across a full elevation that is the difference between a clean envelope and a dotted one.

All six core RoofingPro colours are held in stock for rapid dispatch, with a further range of RAL finishes coated to order.

Site Applications

Typical applications on commercial, industrial and agricultural envelopes:

  • Trapezoidal and box profile roof sheeting onto Z and C section purlins
  • Vertical and horizontal metal wall cladding onto light section steel rails
  • Roof repair and re-sheeting work where existing fixings have failed or corroded
  • Coloured sheet installations where the fixing must match the panel finish
  • Plant rooms, service enclosures and rooftop equipment housings

Typical fixing centres: 300mm - 500mm at sheet ends and 500mm - 1000mm at intermediate purlins (subject to sheet profile and wind loading).

Specification

Technical detail for specification and take-off:

Size 5.5mm x 50mm
Head Type Hex
Socket Size 8mm
Point Type Self-Drilling No.3
Thread Type 60° Self-Tapping
Effective Thread Length 35mm
EPDM Washer 16mm
FW Ø 11mm
Max Drilling Thickness 5mm
Material Case & Core Hardened Carbon Steel
Substrate Steel
Shank Finish Bright Zinc Plated
Head & Washer Finish Powder Coated
Colour RAL 9016 Traffic White

Frequently Asked Questions

Do I need to pre-drill?

No. The self-drilling No.3 point drills, taps and fixes in one pass through light section steel up to 5mm.

How weathertight is the seal?

The 16mm bonded EPDM washer compresses under the hex head as the screw seats, forming a permanent seal around the fixing hole. Drive it until the washer is evenly compressed and no further.

Will the colour fade?

Powder coating is heat-cured and bonded rather than sprayed on, so it holds colour through UV exposure and weathering far longer than painted or touched-up fixings.

What is the difference between this and the 38mm?

Length only. The 50mm carries 35mm of effective thread and suits deeper profiles or build-ups where a 38mm would not reach the steel.

Powder Coated Roofing Screws

We powder coat every RoofingPro screw ourselves. Coating an EPDM washer is an awkward, unpleasant process that most fixing suppliers will not take on, which is exactly why the majority of coloured roofing screws on the market still ship with a bare black washer.

The electrostatic powder is bonded to the substrate under heat rather than sitting on it as a film. The result survives socket contact, weathering and years of UV without chalking or flaking back to bright metal.

Benefits of powder coated roofing screws:

  • Scratch resistant
  • Rust resistant
  • UV resistant
  • Weather resistant
  • Colourfast

Other RoofingPro RS50 Colour Options

RoofingPro™ RS50 roofing screws are stocked in six core RAL finishes matched to the most widely specified roofing and cladding colours, with further RAL references powder coated to order.

Description

RoofingPro™ RS50 in RAL 9016 Traffic White: a 50mm x 5.5mm hex head self-drilling screw with a colour-matched EPDM sealing washer, made for fixing profiled metal sheets to light section steel.

The 50mm length is the workhorse of the range. It clears the crown of most box and trapezoidal profiles, passes through insulation build-ups and still lands 35mm of effective thread into the purlin behind.

Case and core hardened carbon steel with a bright zinc plated shank gives the drill point the hardness to cut steel and the shank the corrosion resistance to stay serviceable behind the sheet.

The powder coating is applied in-house to both the head and the washer, which is the part of this product that is genuinely difficult to do well and the reason most suppliers do not.

Colour Matched in RAL 9016 Traffic White

RAL 9016 Traffic White is a bright clean neutral white. Traffic white is the crisper, cooler white used across retail units, commercial rooflines, PVCu window and door systems, fascias, soffits and shopfitting. It reads brighter and more contemporary than RAL 9010.

RAL 9016 is one of the two most requested whites in the UK fixings market. On white cladding and trim, an uncoated fixing head shows as a dark speck from ground level across an entire elevation.

The powder coated head and washer are finished to the same RAL reference as the sheet, so the fixing reads as part of the panel rather than a fastener sitting on it. Across a full elevation that is the difference between a clean envelope and a dotted one.

All six core RoofingPro colours are held in stock for rapid dispatch, with a further range of RAL finishes coated to order.

Site Applications

Typical applications on commercial, industrial and agricultural envelopes:

  • Trapezoidal and box profile roof sheeting onto Z and C section purlins
  • Vertical and horizontal metal wall cladding onto light section steel rails
  • Roof repair and re-sheeting work where existing fixings have failed or corroded
  • Coloured sheet installations where the fixing must match the panel finish
  • Plant rooms, service enclosures and rooftop equipment housings

Typical fixing centres: 300mm - 500mm at sheet ends and 500mm - 1000mm at intermediate purlins (subject to sheet profile and wind loading).

Specification

Technical detail for specification and take-off:

Size 5.5mm x 50mm
Head Type Hex
Socket Size 8mm
Point Type Self-Drilling No.3
Thread Type 60° Self-Tapping
Effective Thread Length 35mm
EPDM Washer 16mm
FW Ø 11mm
Max Drilling Thickness 5mm
Material Case & Core Hardened Carbon Steel
Substrate Steel
Shank Finish Bright Zinc Plated
Head & Washer Finish Powder Coated
Colour RAL 9016 Traffic White

Frequently Asked Questions

Do I need to pre-drill?

No. The self-drilling No.3 point drills, taps and fixes in one pass through light section steel up to 5mm.

How weathertight is the seal?

The 16mm bonded EPDM washer compresses under the hex head as the screw seats, forming a permanent seal around the fixing hole. Drive it until the washer is evenly compressed and no further.

Will the colour fade?

Powder coating is heat-cured and bonded rather than sprayed on, so it holds colour through UV exposure and weathering far longer than painted or touched-up fixings.

What is the difference between this and the 38mm?

Length only. The 50mm carries 35mm of effective thread and suits deeper profiles or build-ups where a 38mm would not reach the steel.

Powder Coated Roofing Screws

We powder coat every RoofingPro screw ourselves. Coating an EPDM washer is an awkward, unpleasant process that most fixing suppliers will not take on, which is exactly why the majority of coloured roofing screws on the market still ship with a bare black washer.

The electrostatic powder is bonded to the substrate under heat rather than sitting on it as a film. The result survives socket contact, weathering and years of UV without chalking or flaking back to bright metal.

Benefits of powder coated roofing screws:

  • Scratch resistant
  • Rust resistant
  • UV resistant
  • Weather resistant
  • Colourfast

Other RoofingPro RS50 Colour Options

RoofingPro™ RS50 roofing screws are stocked in six core RAL finishes matched to the most widely specified roofing and cladding colours, with further RAL references powder coated to order.

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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Description

RoofingPro™ RS50 in RAL 9016 Traffic White: a 50mm x 5.5mm hex head self-drilling screw with a colour-matched EPDM sealing washer, made for fixing profiled metal sheets to light section steel.

The 50mm length is the workhorse of the range. It clears the crown of most box and trapezoidal profiles, passes through insulation build-ups and still lands 35mm of effective thread into the purlin behind.

Case and core hardened carbon steel with a bright zinc plated shank gives the drill point the hardness to cut steel and the shank the corrosion resistance to stay serviceable behind the sheet.

The powder coating is applied in-house to both the head and the washer, which is the part of this product that is genuinely difficult to do well and the reason most suppliers do not.

Colour Matched in RAL 9016 Traffic White

RAL 9016 Traffic White is a bright clean neutral white. Traffic white is the crisper, cooler white used across retail units, commercial rooflines, PVCu window and door systems, fascias, soffits and shopfitting. It reads brighter and more contemporary than RAL 9010.

RAL 9016 is one of the two most requested whites in the UK fixings market. On white cladding and trim, an uncoated fixing head shows as a dark speck from ground level across an entire elevation.

The powder coated head and washer are finished to the same RAL reference as the sheet, so the fixing reads as part of the panel rather than a fastener sitting on it. Across a full elevation that is the difference between a clean envelope and a dotted one.

All six core RoofingPro colours are held in stock for rapid dispatch, with a further range of RAL finishes coated to order.

Site Applications

Typical applications on commercial, industrial and agricultural envelopes:

  • Trapezoidal and box profile roof sheeting onto Z and C section purlins
  • Vertical and horizontal metal wall cladding onto light section steel rails
  • Roof repair and re-sheeting work where existing fixings have failed or corroded
  • Coloured sheet installations where the fixing must match the panel finish
  • Plant rooms, service enclosures and rooftop equipment housings

Typical fixing centres: 300mm - 500mm at sheet ends and 500mm - 1000mm at intermediate purlins (subject to sheet profile and wind loading).

Specification

Technical detail for specification and take-off:

Size 5.5mm x 50mm
Head Type Hex
Socket Size 8mm
Point Type Self-Drilling No.3
Thread Type 60° Self-Tapping
Effective Thread Length 35mm
EPDM Washer 16mm
FW Ø 11mm
Max Drilling Thickness 5mm
Material Case & Core Hardened Carbon Steel
Substrate Steel
Shank Finish Bright Zinc Plated
Head & Washer Finish Powder Coated
Colour RAL 9016 Traffic White

Frequently Asked Questions

Do I need to pre-drill?

No. The self-drilling No.3 point drills, taps and fixes in one pass through light section steel up to 5mm.

How weathertight is the seal?

The 16mm bonded EPDM washer compresses under the hex head as the screw seats, forming a permanent seal around the fixing hole. Drive it until the washer is evenly compressed and no further.

Will the colour fade?

Powder coating is heat-cured and bonded rather than sprayed on, so it holds colour through UV exposure and weathering far longer than painted or touched-up fixings.

What is the difference between this and the 38mm?

Length only. The 50mm carries 35mm of effective thread and suits deeper profiles or build-ups where a 38mm would not reach the steel.

Powder Coated Roofing Screws

We powder coat every RoofingPro screw ourselves. Coating an EPDM washer is an awkward, unpleasant process that most fixing suppliers will not take on, which is exactly why the majority of coloured roofing screws on the market still ship with a bare black washer.

The electrostatic powder is bonded to the substrate under heat rather than sitting on it as a film. The result survives socket contact, weathering and years of UV without chalking or flaking back to bright metal.

Benefits of powder coated roofing screws:

  • Scratch resistant
  • Rust resistant
  • UV resistant
  • Weather resistant
  • Colourfast

Other RoofingPro RS50 Colour Options

RoofingPro™ RS50 roofing screws are stocked in six core RAL finishes matched to the most widely specified roofing and cladding colours, with further RAL references powder coated to order.

Recommended applications

Built for fixing metal roofing and cladding to steel framing on commercial, industrial and agricultural envelopes. The 50mm length clears deeper profiles and insulated build-ups while still landing 35mm of effective thread into the steel.

Self-drilling No.3 point, no pre-drilling, steel up to 5mm. Use an 8mm socket in a variable-speed driver and seat the screw until the EPDM washer compresses evenly around the head.

Not suitable for fixing into timber — the self-drilling point is designed for steel substrates. For timber framing see our self-tapping wafer head range.

Suitable for

Profiled Metal RoofingBox profile, corrugated and trapezoidal roof sheets
Metal Wall CladdingVertical and horizontal cladding, rainscreen panels
Steel Purlins & RailsZ and C section purlins, sheeting rails up to 5mm
Light Section Steel FramePortal frames, agricultural and industrial steelwork
Flashings & TrimsRidge caps, barge boards, eaves and verge trims
£0.34

In Stock

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Bulk Discount
200+
500+
1000+
2000+
5000+
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