Forgefix Roofing Bolts FORRBN512M M5 x 12mm Zinc Plated Bag 25

These zinc-plated M5 x 12mm roofing bolts are designed with a low-profile mushroom head and come with square nuts. Their bright zinc finish enhances resistance to corrosion, making them suitable for both indoor and outdoor applications and able to withstand weather conditions without rust. The zinc coating forms a barrier to oxidation and can act as a sacrificial anode if the barrier is damaged, helping to provide a longer-lasting fastening solution. They are intended for joining various materials, including roofing, and require clearance drill sizes 1mm larger than the bolt diameter.

Key features

• Zinc-plated, corrosion-resistant M5 x 12mm bolts
• Supplied with square nuts and low-profile mushroom head
• Suitable for indoor and outdoor use
• Can be used for roofing and other joining applications
• Clearance drill size 1mm larger than bolt diameter

Usage and installation

When installing, use a slotted screwdriver with a tip that matches the width of the screw slot to avoid damaging the head. Ensure proper alignment and use the appropriate drill size (1mm larger than the bolt diameter) for a secure fit. The zinc coating provides corrosion resistance by forming a protective barrier and, if the barrier is damaged, can act as a sacrificial anode to help preserve the substrate's surface integrity.

Use a slotted screwdriver with a tip matching the screw slot width to avoid damaging the bolt head; use a clearance drill size 1mm larger than the bolt diameter.