Hex Head Timber Screws with Washer 6.3mm x 150mm (Bag of 100)

Product code: 421045
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The Hex Head Timber Screw with Washer (6.3mm x 150mm) is a high-strength, long-reach fastener ideal for securing cladding, sheet metal, and heavy timber sections with confidence. Designed with a self-drilling hex slash point, this screw offers fast, hassle-free installation with no pre-drilling required—perfect for structural timber-to-metal applications such as fencing, framing, and large outdoor projects.


It features a 16mm EPDM rubber washer under an aluminium flange, which compresses to form a watertight and weather-resistant seal, ensuring durability even in harsh conditions. Finished with corrosion-resistant zinc plating, this screw is built for long-lasting performance outdoors.