RoofingPro RS50 Roofing Screws - 50mm - RAL 7042 Traffic Grey

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Description

Fixing a coloured roof sheet with an uncoated screw undoes the specification at the last step. The RoofingPro™ RS50 solves that: a 50mm x 5.5mm hex head self-drilling roofing screw with the head and the EPDM washer powder coated in RAL 7042 Traffic Grey A.

The self-drilling No.3 point removes the pre-drilling step entirely. Drive straight into light section steel up to 5mm and the screw cuts, taps and seats in one operation, with 35mm of effective thread engaging behind the sheet.

At 50mm it suits deeper profiles and insulated build-ups where a shorter fixing runs out of thread before it reaches the steel. Box profile, corrugated and trapezoidal sheets all sit comfortably within its range.

Specified across roofing, cladding, rainscreen and agricultural work, where hundreds of fixings across an elevation either vanish into the finish or advertise themselves.

Colour Matched in RAL 7042 Traffic Grey A

The RS50 in RAL 7042 Traffic Grey A is finished in a clean mid-tone neutral grey, powder coated across the hex head and the EPDM washer together.

Traffic grey is the mid-tone grey used across transport infrastructure, plant rooms, light industrial units and service buildings. It is bright enough to read as a deliberate finish rather than bare metal.

RAL 7042 is frequently specified alongside anthracite as a secondary or contrast colour, used on trims, flashings and lower panels where a lighter grey lifts an otherwise dark envelope.

Part of the six-colour RoofingPro core range held in stock, with a wider RAL palette available to order for matched schemes.

Site Applications

Specified across metal envelope work where the fixing is visible and the seal matters:

  • Fixing profiled metal roofing sheets to steel purlins on industrial and commercial buildings
  • Securing box profile and corrugated cladding to steel sheeting rails
  • Agricultural roofing and barn cladding onto portal frame steelwork
  • Fixing flashings, ridge caps, barge boards and eaves trims
  • Insulated panel and composite sheet fixing where a deeper build-up needs the extra length

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 7042 Traffic Grey A

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

RALfixings specialises in colour-matched visible fixings. Every RoofingPro screw is powder coated in-house, which lets us hold a genuine RAL match rather than an approximation, and lets us coat the EPDM washer as well as the head.

Powder coating is applied electrostatically as a dry powder and then cured, forming a bonded finish rather than a surface film. It will not chip off the hex flats under a socket the way wet paint does, and it holds colour through UV exposure far longer than a sprayed finish.

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

Fixing a coloured roof sheet with an uncoated screw undoes the specification at the last step. The RoofingPro™ RS50 solves that: a 50mm x 5.5mm hex head self-drilling roofing screw with the head and the EPDM washer powder coated in RAL 7042 Traffic Grey A.

The self-drilling No.3 point removes the pre-drilling step entirely. Drive straight into light section steel up to 5mm and the screw cuts, taps and seats in one operation, with 35mm of effective thread engaging behind the sheet.

At 50mm it suits deeper profiles and insulated build-ups where a shorter fixing runs out of thread before it reaches the steel. Box profile, corrugated and trapezoidal sheets all sit comfortably within its range.

Specified across roofing, cladding, rainscreen and agricultural work, where hundreds of fixings across an elevation either vanish into the finish or advertise themselves.

Colour Matched in RAL 7042 Traffic Grey A

The RS50 in RAL 7042 Traffic Grey A is finished in a clean mid-tone neutral grey, powder coated across the hex head and the EPDM washer together.

Traffic grey is the mid-tone grey used across transport infrastructure, plant rooms, light industrial units and service buildings. It is bright enough to read as a deliberate finish rather than bare metal.

RAL 7042 is frequently specified alongside anthracite as a secondary or contrast colour, used on trims, flashings and lower panels where a lighter grey lifts an otherwise dark envelope.

Part of the six-colour RoofingPro core range held in stock, with a wider RAL palette available to order for matched schemes.

Site Applications

Specified across metal envelope work where the fixing is visible and the seal matters:

  • Fixing profiled metal roofing sheets to steel purlins on industrial and commercial buildings
  • Securing box profile and corrugated cladding to steel sheeting rails
  • Agricultural roofing and barn cladding onto portal frame steelwork
  • Fixing flashings, ridge caps, barge boards and eaves trims
  • Insulated panel and composite sheet fixing where a deeper build-up needs the extra length

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 7042 Traffic Grey A

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

RALfixings specialises in colour-matched visible fixings. Every RoofingPro screw is powder coated in-house, which lets us hold a genuine RAL match rather than an approximation, and lets us coat the EPDM washer as well as the head.

Powder coating is applied electrostatically as a dry powder and then cured, forming a bonded finish rather than a surface film. It will not chip off the hex flats under a socket the way wet paint does, and it holds colour through UV exposure far longer than a sprayed finish.

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

Fixing a coloured roof sheet with an uncoated screw undoes the specification at the last step. The RoofingPro™ RS50 solves that: a 50mm x 5.5mm hex head self-drilling roofing screw with the head and the EPDM washer powder coated in RAL 7042 Traffic Grey A.

The self-drilling No.3 point removes the pre-drilling step entirely. Drive straight into light section steel up to 5mm and the screw cuts, taps and seats in one operation, with 35mm of effective thread engaging behind the sheet.

At 50mm it suits deeper profiles and insulated build-ups where a shorter fixing runs out of thread before it reaches the steel. Box profile, corrugated and trapezoidal sheets all sit comfortably within its range.

Specified across roofing, cladding, rainscreen and agricultural work, where hundreds of fixings across an elevation either vanish into the finish or advertise themselves.

Colour Matched in RAL 7042 Traffic Grey A

The RS50 in RAL 7042 Traffic Grey A is finished in a clean mid-tone neutral grey, powder coated across the hex head and the EPDM washer together.

Traffic grey is the mid-tone grey used across transport infrastructure, plant rooms, light industrial units and service buildings. It is bright enough to read as a deliberate finish rather than bare metal.

RAL 7042 is frequently specified alongside anthracite as a secondary or contrast colour, used on trims, flashings and lower panels where a lighter grey lifts an otherwise dark envelope.

Part of the six-colour RoofingPro core range held in stock, with a wider RAL palette available to order for matched schemes.

Site Applications

Specified across metal envelope work where the fixing is visible and the seal matters:

  • Fixing profiled metal roofing sheets to steel purlins on industrial and commercial buildings
  • Securing box profile and corrugated cladding to steel sheeting rails
  • Agricultural roofing and barn cladding onto portal frame steelwork
  • Fixing flashings, ridge caps, barge boards and eaves trims
  • Insulated panel and composite sheet fixing where a deeper build-up needs the extra length

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 7042 Traffic Grey A

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

RALfixings specialises in colour-matched visible fixings. Every RoofingPro screw is powder coated in-house, which lets us hold a genuine RAL match rather than an approximation, and lets us coat the EPDM washer as well as the head.

Powder coating is applied electrostatically as a dry powder and then cured, forming a bonded finish rather than a surface film. It will not chip off the hex flats under a socket the way wet paint does, and it holds colour through UV exposure far longer than a sprayed finish.

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

Designed for metal envelope work: fixing box profile, corrugated and trapezoidal sheets to steel purlins and sheeting rails. Head and EPDM washer are both powder coated, so the fixing reads as part of the panel rather than sitting on top of it.

Self-drilling into light section steel up to 5mm, no pilot hole required. Use an 8mm nut setter at controlled speed and set the clutch so the washer seals without being crushed.

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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