Zhengchen Hardware offers a broad range of precision flat washers and custom shim washers engineered for critical fastening and load distribution applications. Manufactured from premium materials including stainless steel, carbon steel, and S45C, our washers are designed to meet the tolerance and performance demands of industries such as automotive, aerospace, construction, and electronics. With configurable thickness, anti-loosening properties, and multiple standards available (DIN, ISO, JIS), our washers provide consistent spacing, surface protection, and vibration resistance. Whether you're securing bolts in high-torque assemblies or aligning components in high-speed machinery, our washers deliver reliability, durability, and precision. We also support OEM customization for specific project requirements.