Products Detail

ISO 7090 defines standardized flat plain washers widely adopted for general industrial fastening and mechanical assembly scenarios. Optimized for conventional bolt and nut connection systems, these flat washers are engineered to evenly distribute clamping pressure, reduce contact friction, and protect component surfaces from abrasion and indentation during assembly and long-term operation. They effectively mitigate connection loosening and structural stress deviation caused by continuous mechanical vibration and alternating loads, delivering stable and reliable auxiliary fastening performance. Featuring strong universal adaptability and excellent assembly compatibility, ISO 7090 washers are fundamental supporting components for various general engineering fastening structures.
Our ISO 7090 washers are processed with precision stamping, fine trimming and professional surface finishing techniques. Each washer features an ultra-flat, burr-free surface and uniform overall thickness, achieving highly consistent dimensional accuracy and flatness. With optimized structural design and balanced mechanical properties, these washers exhibit outstanding compression resistance, wear resistance and anti-deformation capability under long-term operating conditions. They support seamless fitting and excellent interchangeability with standard fastener assemblies, ensuring stable and uniform connection performance for mechanical and structural fastening systems in various working environments.

Manufacturer Advantages:
As a professional integrated fastener supplier dedicated to standardized and high-quality fastening system solutions, we provide high-quality ISO 7090 standard flat washers for full-set fastener matching. Our complete product portfolio covers mainstream hardness grades of 200HV and 300HV, manufactured from premium carbon steel and alloy steel materials, with a full specification range ofM8-M64. The diversified grades and complete size coverage fully cater to light, medium and heavy-load fastening demands of various industrial and engineering projects.
We implement rigorous full-process quality screening and standardized performance inspection for all ISO 7090 washers. Every batch undergoes comprehensive testing including raw material composition verification, dimensional tolerance calibration, flatness detection, thickness consistency inspection and hardness grading testing. Defective products with surface flaws, uneven hardness and dimensional deviations are strictly eliminated, ensuring all supplied washers fully comply with ISO standard specifications and maintain stable batch quality consistency.
We specialize in one-stop supporting supply of matched bolts, nuts and standard washers. By unifying the quality control standards of the entire fastening system, we avoid assembly mismatch and inconsistent structural performance caused by mixed procurement of different accessories. This integrated quality management mode effectively enhances the overall safety and stability of customer project connections, while simplifying customer procurement processes and unifying project quality standards.
Backed by full specification coverage, reliable standard compliance, professional system matching capability and flexible batch supply services, our ISO 7090 washer supporting solutions have gained widespread recognition from global customers. Adhering to strict quality control systems, stable delivery efficiency and comprehensive full-cycle services, we have built long-term, stable and win-win cooperative relationships with clients in machinery manufacturing, steel structure engineering and general industrial construction fields.

Surface Finishing:
Zinc Planting, Hot-Dip Galvanizing, etc.