50mm OneShot C4 T17 Screw & Grey Dome Seal

Description

The 50mm OneShot C4 T17 Screw & Grey Dome Seal is a high-performance roofing fastener designed for fixing polycarbonate and fibreglass roofing sheets to timber structures. Built with Class 4 corrosion protection, it delivers exceptional durability and long-term performance in Australia’s harsh outdoor environments.

The T17 self-drilling thread allows fast, secure installation directly into timber without the need for pre-drilling, ensuring a tight, reliable hold while reducing installation time. Its sharp point and deep thread design provide excellent pull-out strength, helping prevent sheet movement or vibration.

The included grey dome seal ensures a watertight, weather-resistant seal that prevents leaks, corrosion and damage at the fixing point. Its clean, low-profile finish blends neatly with most roofing colours, delivering both strength and visual appeal.

Ideal for use in patios, pergolas, carports, sheds and rural buildings, this OneShot fixing system provides professional-grade results for both residential and commercial roofing applications.

Key Benefits:

• Designed for fixing polycarbonate and fibreglass sheets to timber

• Class 4 corrosion resistance for long-term durability

• T17 self-drilling screw eliminates pre-drilling

• Includes grey dome seal for watertight, neat finish

• Prevents leaks, corrosion and sheet damage

• Ideal for residential, commercial and rural roofing installations

Ready to ship in 3-5 business days

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