Washers

Square Washers

Square washers are specialized square-shaped plates designed to maximize bearing surface area and distribute heavy clamping loads in structural applications. Their geometric profile resists rotation and slippage, ensuring joint stability in oversized holes and high-vibration environments. Forged from carbon or alloy steel with anti-corrosive finishes, they are primarily specified for timber framing, structural steel connections, and seismic infrastructure projects.

Square WashersSquare Plate WashersLoad DistributionTimber Framing FastenersStructural WashersHeavy-Duty WashersAnti-RotationSeismic Washers

Specifications

Standards

DIN 435DIN 434ASTM F436ASTM F844DIN 436

Materials

Carbon SteelStainless SteelAlloy Steel

Finishes

Hot-Dip Galvanized (HDG)Zinc PlatingBlack OxideBlack PhosphatePassivatedZinc-Aluminium Flake CoatingZinc Flake CoatingNickel Plating

Mechanical Properties

High Load DistributionAnti-RotationTensile Strength 350–600 MPaHardness 40–60 HRC

Design Features

Load DistributionStability & Anti-Rotation

Square Washers — Full Specifications

Our square washers are available in a range of sizes, materials, and standards. Contact us for a detailed specifications sheet and competitive bulk pricing.

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