This steel square plate washer measures 50mm by 50mm with a 3mm thickness and a central 10mm hole, designed for use with M10 bolts or threaded rods. It is commonly fitted to spread load and reduce the risk of bolt heads or nuts pulling through timber, steel, or masonry substrates.
On site, this washer is used in structural fixings, base plate connections, and timber supports where a broader bearing surface is required. The square format helps maintain joint stability and distributes pressure more evenly than a standard round washer during installation.
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