Tianqi Fasteners offers a comprehensive range of high-precision Stainless Steel Flat Washers, also known as Plain Washers, engineered to provide a stable bearing surface and distribute fastener load to prevent material deformation. Our inventory features standardized solutions including the 304 Stainless Steel DIN 125 Flat Washer for metric applications and the 304/316 Stainless Steel ANSI B18.22.1 Flat Washer for imperial requirements. Whether your project demands a Flat Gasket Large Flat Washer for expanded surface coverage or a Large Thick Flat Washer for heavy-duty structural stability, our washers provide the essential corrosion resistance and durability required for marine, automotive, and industrial assemblies.
By increasing the surface area under the bolt head or nut, these washers prevent “pull-through” and protect delicate surfaces from damage during high-torque tightening.
Available in both 304 and 316 stainless steel, our washers resist oxidation, moisture, and chemical exposure, ensuring long-lasting performance in harsh outdoor environments.
We strictly adhere to DIN 125 and ANSI B18.22.1 specifications, ensuring consistent thickness, inner diameter (ID), and outer diameter (OD) for a perfect fit every time.
From the standard Plain Washer to specialized Large Thick Flat Washers, our range accommodates everything from decorative electronics to heavy-duty timber and steel construction.
Acting as a Flat Gasket, these washers help maintain tension in the assembly, reducing the likelihood of fasteners loosening due to mechanical vibration.