UPVC Window Screws | Baypole & Friction Stay | Electro SW

Timco
Timco 3.9 x 16mm Friction Stay Window Screws Self-Drilling Shallow Pan 125Z (Box of 1000)
Very low stock (1 unit)

Regular price £17.82

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Timco
Timco 3.9 x 38mm Window Fabrication Screws Countersunk Phillips 125Y
Very low stock (1 unit)

Regular price £14.95

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Timco
TIMCO Window Fabrication Screws Countersunk Yellow Zinc (Box of 1000)
In stock (27 units)

Regular priceFrom £15.06

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Timco
Timco 3.9 x 16mm Window Fabrication Screws Countersunk 121Z (Box of 1000)
In stock (10 units)

Regular price £9.88

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Timco
TIMCO 4.3 x 25mm Window Fabrication Screws Shallow Pan 112Z (Box of 1000)
In stock (8 units)

Regular price £14.08

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Whether you are fabricating new UPVC frames or replacing worn friction stays on site, window hardware demands specialized fastening. At Electro South West Ltd, our curated range of professional window screws is engineered specifically for the glazing and fenestration industry. We supply high-performance fasteners designed with sharp Gimlet points and optimized thread pitches to bite rapidly into UPVC, timber, and reinforced aluminium frames without splitting the profile or stripping the thread.

Our collection features essential hardware, including self-drilling baypole screws for structural frame joining and specialized friction stay screws with precise countersunk heads to ensure your hinges and locking mechanisms sit perfectly flush. Available in durable zinc-plated finishes and premium A2/A4 stainless steel for ultimate outdoor corrosion resistance, these fasteners guarantee long-lasting performance against the elements. To complete your window installations to a professional standard, pair these screws with our weather-resistant Sealants & Adhesives, and ensure perfectly plumb frames using our trade-rated Measuring Tools & Levels.

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Frequently Asked Questions

What is the difference between a standard wood screw and a specialized window screw?

Window screws are specifically designed for the glazing industry. They feature unique thread pitches and extremely sharp points to pierce and tap into UPVC, timber, and thin internal aluminum reinforcing rapidly without causing the plastic to crack. They also utilize specialized head profiles to sit perfectly flush within tight window hinges and hardware.

Do I need to use stainless steel screws for window installations?

While high-quality zinc-plated screws offer excellent durability for the internal side of the window frame and enclosed hardware, we highly recommend using stainless steel screws for any exterior-facing hardware, or if you are installing in a coastal area. This prevents rust bleeding down the white UPVC frames and maintains the structural integrity of the window against harsh weather.

What exactly are baypole screws used for?

Baypole screws are heavy-duty, specialized structural fasteners used primarily to securely join individual sections of UPVC window frames together. They are essential when constructing angled bay or bow windows, as their design is engineered to pull the separate frame profiles tightly together, creating a rigid, highly secure, and draft-free structural joint.