5.5 x 25mm Hexagon Self-Drilling Screws – Light Section Steel ? (No Washer) ? Bi-Metal Exterior ? For 1.2-5.0mm Steel Thickness
£0.39 - £0.49
Excluding VAT
SKU: 60144.505.025
Hex head self-drilling screws, for joining roofing sheets to light section steel (Max. 5.0mm) without the need to pre-drill a hole.
• Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body
Available
Effective Thread L (mm) | 12 |
Thread Type | 60° Self-Tapping |
FW Ø (mm) | 11 |
Socket Size (mm) | 8 |
Substrates | Steel |
Point Type | Self-Drilling No.3 |
Finish | Exterior (Silver Organic) |
Head Type | Hex |
MDT (mm) | 5 |
Size (mm) | 5.5 x 25 |
Type | For Light Section Steel |
Drill Tip L (mm) | 8.5 |
Material | Bi-Metal/A2-304 Stainless Steel/Carbon Steel |
Head H (mm) | 5.3 |
Corrosion Rating (1-5) | 4 – Urban & industrial areas with a moderate salt atmosphere |
Thread Coverage | Fully Threaded |