S-90965A150 4.3 mm ID x 9 mm OD DIN 125; ISO 7089 General Purpose Washers
General Purpose Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 316 stainless steel construction ensures reliable performance in harsh environments and extends service life
- Precise dimensional compatibility with M4 screws (4.3mm ID, 9mm OD) guarantees perfect fit and optimal load distribution in your assemblies
- International standard compliance with DIN 125 and ISO 7089 ensures consistent quality, interchangeability, and global project acceptance
- Enhanced assembly integrity through controlled thickness (0.7-0.9mm) provides stable bearing surfaces and prevents fastener loosening
- Environmental regulation adherence with RoHS 3 and REACH compliance meets stringent industry requirements for safe, sustainable usage
- Exceptional durability in demanding applications thanks to the inherent strength and chemical resistance of 316 stainless steel
Professional Applications & Engineering Value
These M4 metric flat washers manufactured from 316 stainless steel provide critical solutions for corrosion-prone industrial environments. The DIN 125 and ISO 7089 certified design ensures precise dimensional stability under load, preventing surface damage and maintaining clamp force integrity in electrical enclosures, marine hardware, food processing equipment, and chemical processing assemblies. The 4.3mm inner diameter perfectly mates with M4 fasteners while the 9mm outer diameter optimally distributes pressure across connected surfaces. This corrosion resistant washer combination addresses common failure points in aggressive environments, delivering long-term reliability where ordinary washers would degrade.
Specification Summary & Compliance
Manufactured to DIN 125 and ISO 7089 standards with precise dimensions: 4.3mm inner diameter, 9mm outer diameter, and 0.7-0.9mm thickness. These metric flat washers maintain dimensional accuracy for M4 screw applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and regulatory acceptance for international projects.
