Products Detail

ISO 7089 is a globally recognized international standard specifying flat plain washers for general engineering fastening applications. As one of the most widely used standard washer series, ISO 7089 flat washers are designed to deliver uniform load distribution, friction reduction and surface protection for conventional bolt and nut connection assemblies. Featuring precise dimensional uniformity, ultra-flat surface finish and stable structural flatness, these standard washers effectively disperse clamping force over the contact surface, prevent fastener sinking, avoid substrate abrasion, and reduce connection loosening caused by mechanical vibration and alternating load. With excellent versatility and assembly compatibility, they serve as essential auxiliary fastening components for universal industrial connection systems.
Our ISO 7089 washers are manufactured via precision stamping and fine deburring processes, featuring smooth, burr-free surfaces, uniform thickness and stringent dimensional tolerances. The optimized structural design delivers balanced hardness and toughness, granting excellent compression resistance, wear resistance and structural deformation resistance during long-term service. Boasting high assembly accuracy and universal interchangeability with standard ISO fasteners, these washers achieve precise fitting and consistently stable overall connection performance for various fastening assemblies.

Manufacturer Advantages:
As a professional integrated fastener supplier focusing on standard and high-strength fastening system solutions, we provide high-quality standard-compliant ISO 7089 flat washers to support full-set fastener matching. Our product lineup covers complete 200HV and 300HV hardness grades and full M8–M64 size range with carbon steel and alloy steel options, fully meeting diversified matching demands of light, medium and heavy-duty industrial fastening projects.
We implement extremely strict full-process quality screening and performance inspection for all ISO 7089 washers. Every batch of products undergoes strict testing including raw material component verification, dimensional tolerance detection, flatness inspection, thickness consistency calibration and hardness grading test. We eliminate unqualified products with uneven hardness, surface defects and dimensional errors in advance, ensuring all supplied washers fully comply with ISO standard specifications and maintain stable batch quality consistency.
We specialize in one-stop supporting supply of bolts, nuts and matched standard washers. By uniformly controlling the quality standards of the entire fastening system, we effectively solve the problems of mismatched assembly accuracy and inconsistent system performance caused by mixed procurement of different accessories. This integrated quality control mode greatly improves overall connection reliability for customer projects and simplifies customer procurement and quality management procedures.
With complete specification coverage, reliable standard compliance, professional system matching capability and flexible batch supply services, our ISO 7089 washer supporting solutions have won wide recognition from global customers. Adhering to strict quality control standards, stable delivery efficiency and thoughtful full-cycle service, we have established long-term stable win-win cooperative relationships with clients engaged in machinery manufacturing, steel structure engineering and general industrial construction.

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