Timco Bi-Metal Hex Self-Drilling Screws 5.5x32mm (100 Pack)
100 bi-metal hex self-drilling screws for roofing & light steel. A2-304 stainless with carbon steel tips. No pre-drilling needed.
Timco Bi-Metal Hex Self-Drilling Screws offer a high-performance fastening solution for light-section steel and roofing applications. These screws eliminate the need for pre-drilling, saving valuable time during installation.
Featuring a unique bi-metal construction, these screws combine the strength of hardened carbon steel drill tips with the corrosion resistance of A2-304 Austenitic Stainless Steel bodies. The hex head design provides excellent torque transmission for secure fastening, while the integrated washer ensures a tight seal against the material surface.
Key Features:
- Self-drilling No.3 point efficiently penetrates materials up to 5.0mm thick
- Corrosion-resistant A2-304 stainless steel body for exterior durability
- Hardened carbon steel tip maintains sharpness through multiple uses
- Fixed 11mm washer distributes load evenly
- 8mm socket size for standard tool compatibility
Ideal for quick and secure installations in roofing and light structural applications where pre-drilling isn't practical. The 100-piece pack provides ample supply for professional projects.
Technical Specifications
- Roofing sheet installations
- Light-section steel construction
- Exterior metal fabrications
- Steel framing applications
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- Thread Diameter: 5.5mm
- Length: 32mm
- Head Type: Hex
- Fixed Washer Diameter: 11.00mm
- Point Type: Self-Drilling No.3
- Socket Size: 8mm
- Material: Bi-Metal (A2-304 Stainless Steel/Carbon Steel)
- Effective Thread Length: 19mm
- Max Drilling Thickness: 5.0mm
- Quantity: 100 pieces
- Weight: 580g
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