Square washers provide a larger bearing area than round washers and resist rotation when seated against timber, channel or plate. Common in formwork, timber framing and solar mounting.
Supplied in bulk to distributors, importers and hardware brands worldwide, including private-label packaging in the customer's own branding. Non-standard sizes and made-to-drawing variants are produced to order, with a material test certificate on every consignment.
| Product Type | Square flat washer |
| Standards | DIN 436; non-standard sizes to drawing |
| Material Grades | Mild steel, hot dip galvanized steel, SS 304, SS 316 |
| Size Range (Metric) | M6 to M30 |
| Size Range (Imperial) | 1/4" to 1-1/4" |
| Thickness | 3 mm to 10 mm; up to 20 mm made to order |
| Finish | Self colour, zinc plated, hot dip galvanized, passivated stainless |
| Custom Options | Plate 25 mm to 150 mm square, slotted or curved (solar rail), made to drawing |
| Certification | Material Test Certificate, EN 10204 3.1 |
| Packaging | Boxed in standard counts, bulk cartons, or private label to customer specification |
