Screw Metal 12×75 26mm washer (50 pack)

When installing the 3mm glass-like EZ GLAZE system on steel or aluminium subframes, the 75mm length provides the necessary reach to pass through the high profile of the sheet and bite deeply into the metal purlin below. Each screw is equipped with a high-performance self-drilling tip, allowing for a fast, “one-hit” installation into metal without the need for separate pilot holes.

The defining feature of this fastener is the 26mm EPDM-bonded washer. This oversized washer is critical for polycarbonate installations; it provides a wide surface area to distribute wind-load pressure, preventing the screw head from pulling through or cracking the sheet during storms. The thick EPDM rubber gasket creates a permanent, flexible seal that compresses against the crest of the EZ GLAZE panel, blocking moisture, dust, and draughts.

Key Features and Benefits

• Crest-Fixing Optimised: The 75mm length is perfectly sized to clear the high-crest geometry of EZ GLAZE panels while maintaining a secure grip in the metal substrate.

• Self-Drilling Capability: Hardened steel tip drills through architectural-grade metal purlins in seconds, reducing labour time.

• Superior Load Distribution: The 26mm washer prevents “stress-crazing” of the polycarbonate by spreading the clamping force across a larger area.

• Weatherproof EPDM Seal: The high-grade rubber backing remains flexible in freezing temperatures and won’t perish under intense UV exposure.

• Corrosion Resistance: Specially coated to withstand the British climate, preventing rust streaks on your transparent roofing.