Square washers are designed to provide increased load distribution and improved surface coverage when used with bolts, threaded rod, and other fastening systems. Their larger flat bearing surface helps reduce pull-through and protects softer materials such as timber, masonry, and fabricated steel sections from damage under load. Square washers are commonly used in construction, engineering, structural, and fencing applications where extra stability and holding strength are required. Mainland Fasteners ships nationwide, from our Christchurch warehouse.
Available in a range of sizes, materials, and finishes, square washers are suited to both indoor and outdoor environments. Galvanised and stainless steel options offer corrosion resistance for exterior and exposed applications, while mild steel variants provide a reliable and economical solution for general fastening tasks. Square washers are frequently paired with coach bolts, threaded rod, and structural fasteners to help maintain even clamping pressure and improve connection strength.
At Mainland Fasteners, square washers are stocked to suit a wide range of trade, industrial, and construction requirements, with options suitable for structural bracing, post fixing, heavy-duty timber connections, and general fastening applications.
All images are indicative only.
Please contact us for information about product range and availability.
