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Self Drilling Screws for Light Section Steel – Exterior
Exterior self drilling screws designed for fixing into light gauge steel up to 5mm, with a durable corrosion-resistant coating for outdoor use.
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 100mm – Box of 100
In stock
£12.24 ex VAT(£14.69 inc VAT)
SKU:
L100B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 19mm – Box of 100
In stock
£3.83 ex VAT(£4.59 inc VAT)
SKU:
L19B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 25mm – Bag of 200
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L25BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 25mm – Box of 100
In stock
£4.24 ex VAT(£5.09 inc VAT)
SKU:
L25B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 32mm – Bag of 160
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L32BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 32mm – Box of 100
In stock
£4.99 ex VAT(£5.99 inc VAT)
SKU:
L32B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 38mm – Bag of 150
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L38BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 38mm – Box of 100
In stock
£5.24 ex VAT(£6.29 inc VAT)
SKU:
L38B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 50mm – Bag of 120
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L50BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 50mm – Box of 100
In stock
£6.33 ex VAT(£7.59 inc VAT)
SKU:
L50B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 70mm – Bag of 100
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L70BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head – 5.5mm x 70mm – Box of 100
In stock
£8.16 ex VAT(£9.79 inc VAT)
SKU:
L70B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head with EPDM Washer – 5.5mm x 100mm – Box of 100
In stock
£13.74 ex VAT(£16.49 inc VAT)
SKU:
L100W16B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head with EPDM Washer – 5.5mm x 19mm – Box of 100
In stock
£5.16 ex VAT(£6.19 inc VAT)
SKU:
L19W16B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head with EPDM Washer – 5.5mm x 25mm – Bag of 140
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L25W16BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head with EPDM Washer – 5.5mm x 25mm – Box of 100
In stock
£5.58 ex VAT(£6.69 inc VAT)
SKU:
L25W16B
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head with EPDM Washer – 5.5mm x 32mm – Bag of 130
In stock
£8.74 ex VAT(£10.49 inc VAT)
SKU:
L32W16BB
Timco Self Drilling Screws – Light Steel – Exterior – Hex Head with EPDM Washer – 5.5mm x 32mm – Box of 100
In stock
£6.08 ex VAT(£7.29 inc VAT)
SKU:
L32W16B
These self drilling screws are engineered for fast and reliable fixing into light section steel without the need for pre-drilling. The hardened drill point cuts through steel and forms a secure thread in one smooth action, saving time on site.
Finished with a high-performance exterior coating, these screws provide long-lasting corrosion resistance, making them ideal for external applications such as roofing, cladding and exposed steelwork.
Why choose exterior self drilling screws?
- Self-drilling point removes the need for pre-drilling
- Designed for fixing into light gauge steel up to 5mm
- Exterior coating resists corrosion and weathering
- Tested to over 500 hours salt-spray resistance
- Reliable performance in outdoor and exposed environments
What are exterior self drilling screws?
Exterior self drilling screws for metal are designed with a hardened drill point that allows them to drill, tap and fix in one operation. The exterior coating provides enhanced protection against corrosion, making them suitable for use in exposed environments where standard zinc screws would not perform as well.
Where are they used?
Exterior self drilling screws are commonly used for:
- Roofing sheets and cladding
- External metal-to-metal fixing
- Steel framework in outdoor environments
- Sheet metal fixing exposed to the elements
- General construction where corrosion resistance is required
With or without EPDM washer – which should you choose?
| Type | Best For |
|---|---|
| With EPDM Washer | External applications where a watertight seal is required, such as roofing and cladding |
| Without Washer | General metal-to-metal fixing where sealing is not required |
Available Sizes & Options
| Size | Type | Typical Use |
|---|---|---|
| 5.5 x 19mm | Standard / With EPDM Washer | Short reach fixing for light metal-to-metal applications and roofing sheets |
| 5.5 x 25mm | Standard / With EPDM Washer | General fixing into light section steel where a secure external fixing is required |
| 5.5 x 32mm | Standard / With EPDM Washer | General purpose fixing for roofing sheets, cladding and metal sections |
| 5.5 x 38mm | Standard / With EPDM Washer | Fixing brackets, layered materials or sheets to light steel |
| 5.5 x 50mm | Standard / With EPDM Washer | Deeper penetration for thicker materials and multi-layer fixing |
| 5.5 x 70mm | Standard / With EPDM Washer | Longer reach fixing where extended penetration into light steel is needed |
| 5.5 x 100mm | Standard / With EPDM Washer | Long reach fixing through thicker materials into light section steel |
Standards & Performance
- Manufactured to BS EN 14566:2008
- Fire Classification: A1
- Exterior coating tested to over 500 hours salt-spray resistance
Frequently Asked Questions
Do self drilling screws need a pilot hole?
No - the drill point allows the screw to cut and thread in one operation.
Are exterior self drilling screws suitable for outdoor use?
Yes, the exterior coating provides enhanced corrosion resistance, making them suitable for exposed environments.
When should I use screws with an EPDM washer?
Use EPDM washer screws where a watertight seal is required, such as roofing or cladding applications.
What steel thickness can these screws be used with?
These screws are designed for light section steel up to 5mm thick.
