Hex Head Timber Screws with Washer 6.3mm x 100mm (Bag of 100)

Product code: 421044
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The Hex Head Timber Screw with Washer (6.3mm x 100mm) is a heavy-duty fastener engineered for securely fixing cladding, sheet metal, and timber components in structural applications. With a self-drilling hex slash point, this screw allows for fast and efficient installation without the need for pre-drilling—perfect for use in fencing, decking, roofing, and other demanding timber-to-metal jobs.


It includes a 16mm EPDM rubber washer beneath an aluminium flange that compresses to form a durable, watertight seal, providing excellent protection in exposed environments. The screw’s zinc plating enhances its corrosion resistance, ensuring long-lasting performance outdoors. Measuring 6.3mm x 100mm and supplied in boxes of 100, it’s ideal for projects that require extended reach and strong, weatherproof fixing.