- Indented hexagon head washer faced self-drilling screw.
- No.3 drill point and case hardened.
- Used with IBR and corrugated sheeting into steel purlins.
- No pre-drilling required.
- Sizes available: No.12 screw gauge or M5.5 x 20, 25, 38, 50, 60, 65 and 70mm.
Division: Heavy Engineering, Light Engineering
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