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The Timco L25W16B Self-Drilling Screws are hex head case & core hardened carbon steel screws with a silver organic finish.
This plating provides a reliable and durable coating that ensures resistance to corrosion, enduring up to 500 hours of salt-spray.
These No.3 self-drilling screws are ideal for joining roofing sheets to light section steel (max. 5.0mm) without the need to pre-drill a hole.
These fully threaded scres are 5.5mm x 25mm in size and are supplied in boxes of 100.