*Random brands will be delivered subject to current stock.
Product Overview:
Square Washer (Hot-Dip Galvanised / HDG) β stamped from carbon steel plate with a Hot-Dip Galvanised (HDG) finish for superior corrosion resistance. Features a square flat profile with a central round hole and wide surface area. Compared to standard round washers, the square design provides a significantly larger bearing surface, preventing timber and soft panels from being crushed or split under high clamping pressure. Ideal for outdoor and exposed structural applications.
Applications:
Structural steel, timber framing, fencing, brackets, and outdoor construction. Placed under bolt heads or nuts, particularly suitable for timber and hollow/soft panels to prevent crushing. Highly resistant to rain and rust in outdoor environments.
Features:
- Square wide-flange profile - significantly larger bearing surface than round washers to prevent localized crushing of timber and soft materials.
- Carbon steel plate - high strength, resists bending and deformation.
- Hot-Dip Galvanised (HDG) - thick coating, far superior rust protection compared to standard zinc plating for outdoor exposure.
- Central round hole - precision-fit for standard metric bolts.
- Multiple thickness options - available in 3mm, 5mm, and 6mm to suit different load requirements.
Sizes (Suits Bolt x Side Length):
M8: 38 / 50 / 65 / 75mm - For light to medium timber framing, small brackets, and fencing.
M10: 38 / 50 / 65 / 75mm - For standard timber structures, heavier fencing, and general outdoor brackets.
M12: 38 / 50 / 65 / 75mm - For medium structural steel, heavy timber frames, and load-bearing connections.
M16: 50 / 65 / 75mm - For heavy steel structures, large timber beams, and high-load brackets.
M20: 50 / 65 / 75mm - For heavy-duty structural connections and large outdoor frameworks.
M24: 65 / 75mm - For extra-heavy structural steel and large-scale engineering projects.
Note: Select larger side lengths and thicker plates for heavier loads or softer materials. HDG is suitable for outdoor/humid environments; upgrade to stainless steel for highly corrosive coastal areas.
