Commercial Flat Washers

The secret to a long-lasting fastener connection often lies in the simplest part: the flat washer. When you tighten a bolt, the pressure is concentrated on a small area, which can deform soft materials like aluminum or plastic. Our Commercial Flat Washers are designed to solve this by distributing the load over a surface area 2.5 times larger than the nut face. By using our Precision Flat Washers, you protect your workpiece from unsightly surface scratches and indentations while ensuring a more stable clamp load. We keep our thickness tolerance within ±0.05mm and concentricity below 0.1mm to ensure every piece fits perfectly.

At our Shanghai factory, we don't treat these as "commodity" items. We use precision progressive dies and high-speed stamping to ensure our Precision Flat Washers have clean, burr-free edges that won't damage your high-tensile bolts. Whether you choose SPCC cold-rolled steel for its flatness or SUS304 for its corrosion resistance, you are getting a product backed by IATF 16949 quality standards. Our 20 years of experience means we have optimized the hardness (HV 100-150) to be stiff enough to support the load but ductile enough to conform slightly to the mating surfaces for a better seal.