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Drilling Class 4 Hex - Corse

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Edcon Steel’s Coarse‑Thread Class 4 self‑drilling fasteners (hex head) boast a thick, heavy-duty zinc coating that offers superior corrosion resistance—perfect for coastal, industrial, and heavily exposed environments. Featuring a hardened TEK-style drill point capable of drilling through up to 4.5 mm mild steel, these screws also often include flanged or sealing washers—which enhance load bearing and wind uplift protection—making them particularly effective for metal‑to‑metal fastening, structural framing, and sheet cladding applications.

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Ordered on a Tuesday night and delivered by Thursday morning - great communication on the way through as well.

Craig Curtin

Great business to deal with. They are happy to cut me whatever short lengths I need and post or courier to me out in the middle of nowhere. AAA+++

Mal Birrell

Edcon Steel is a convenient, transparent way to buy steel. They have a wide range of alloys and sizes. For the needs of Plithos Renewables, Stainless Steel 316 was the go-to and parts could be cut to length. It is very easy to do business with Edcon Steel.

Plithos Renewables

Competitive pricing, great customer service by ALL staff members, return claims handled professionally without any 'Ifs' or 'buts'. Very friendly. They are raising the bar to a new standard in Australian retail customer service.

Philipp Katscher

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