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Techfast Window Screw 3.9x13mm – Self-Tapping & Self-Drilling (Available in 100, 500, or 1000)
Regular price From £5.20 GBPRegular priceTechfast Window Screw 3.9x13mm – Self-Tapping & Self-Drilling (Available in 100, 500, or 1000)
Regular price From £5.20 GBPRegular priceTechfast Window Screw 3.9x13mm – Self-Tapping & Self-Drilling (Available in 100, 500, or 1000)
Regular price From £5.20 GBPRegular price -
TechFast Waferhead Self-Drill Torx Screw 4.8 x 70mm - Zinc Plated | Box of 200
Regular price From £10.49 GBPRegular priceTechFast Waferhead Self-Drill Torx Screw 4.8 x 70mm - Zinc Plated | Box of 200
Regular price From £10.49 GBPRegular priceTechFast Waferhead Self-Drill Torx Screw 4.8 x 70mm - Zinc Plated | Box of 200
Regular price From £10.49 GBPRegular price -
TechFast Timber to Steel Screws | 5.5 x 100mm | Winged CSK No.3 Drill Tip
Regular price From £10.49 GBPRegular priceTechFast Timber to Steel Screws | 5.5 x 100mm | Winged CSK No.3 Drill Tip
Regular price From £10.49 GBPRegular priceTechFast Timber to Steel Screws | 5.5 x 100mm | Winged CSK No.3 Drill Tip
Regular price From £10.49 GBPRegular price -
TechFast Roof Screw Hex/Washer (5.5x25mm) - Box of 100, 10, or 50
Regular price From £4.20 GBPRegular priceTechFast Roof Screw Hex/Washer (5.5x25mm) - Box of 100, 10, or 50
Regular price From £4.20 GBPRegular priceTechFast Roof Screw Hex/Washer (5.5x25mm) - Box of 100, 10, or 50
Regular price From £4.20 GBPRegular price -
TechFast CSK/Wing No.3 Self-Drilling Screws (5.5x65mm) – Timber to Steel Fixings
Regular price From £10.49 GBPRegular priceTechFast CSK/Wing No.3 Self-Drilling Screws (5.5x65mm) – Timber to Steel Fixings
Regular price From £10.49 GBPRegular priceTechFast CSK/Wing No.3 Self-Drilling Screws (5.5x65mm) – Timber to Steel Fixings
Regular price From £10.49 GBPRegular price -
TechFast Baypole Screw (Self-Drilling) – 4.8 x 70mm (Box of 100)
Regular price From £3.14 GBPRegular priceTechFast Baypole Screw (Self-Drilling) – 4.8 x 70mm (Box of 100)
Regular price From £3.14 GBPRegular priceTechFast Baypole Screw (Self-Drilling) – 4.8 x 70mm (Box of 100)
Regular price From £3.14 GBPRegular price -
ForgeFast Torx Comp ZY 3.5x50mm Self-Drilling Wood Screws – Professional Multi-Purpose Fixings
Regular price From £3.68 GBPRegular priceForgeFast Torx Comp ZY 3.5x50mm Self-Drilling Wood Screws – Professional Multi-Purpose Fixings
Regular price From £3.68 GBPRegular priceForgeFast Torx Comp ZY 3.5x50mm Self-Drilling Wood Screws – Professional Multi-Purpose Fixings
Regular price From £3.68 GBPRegular price -
ForgeFast Decking Screws – Green Tub – Self-Drilling Torx Countersunk | Multiple Sizes
Regular price From £13.13 GBPRegular priceForgeFast Decking Screws – Green Tub – Self-Drilling Torx Countersunk | Multiple Sizes
Regular price From £13.13 GBPRegular priceForgeFast Decking Screws – Green Tub – Self-Drilling Torx Countersunk | Multiple Sizes
Regular price From £13.13 GBPRegular price
About Roofing & Cladding Screws
Roofing and cladding screws are engineered for fixing cladding panels, roofing sheets and associated window and door flashings to structural steel, timber and composite substrates. Self-drilling tips eliminate the need for pre-drilling in most applications, significantly reducing installation time.
Glazing Supplies Direct stocks TechFast and equivalent self-drilling cladding screws in hex washer head and countersunk profiles. All screws are CE approved and available in trade packs for building contractors and window and door installation companies.
Frequently Asked Questions
What is a self-drilling cladding screw?
A self-drilling screw (also called a "tek screw") has a drill-point tip that cuts through the substrate without a pre-drilled hole, making installation faster on steel and composite structures.
Are TechFast screws suitable for steel cladding?
Yes — TechFast self-drilling screws are designed to fix through cladding panels directly into light-gauge steel purlins and rails. Check the point number (e.g. Point 3 or Point 5) for compatibility with the steel thickness.