S-93475A230 4.3 mm ID x 9 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-term reliability in harsh environments
• Precise dimensional accuracy ensures perfect fit with M4 screws and consistent performance across assemblies
• Enhanced load distribution through optimal 9mm outer diameter design, reducing surface pressure and material fatigue
• International standard compliance with DIN 125 and ISO 7089 guarantees interchangeability and quality assurance
• Environmental regulation adherence through RoHS 3 and REACH compliance for safe global supply chain integration
• Versatile thickness range (0.7-0.9mm) accommodates slight variations while maintaining sealing and spacing functions
• Cost-effective maintenance solution through durable stainless steel material that resists degradation and replacement cycles

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these M4 flat washers manufactured from 18-8 stainless steel provide critical protection against galvanic corrosion and chemical exposure. The precision metric dimensions (4.3mm ID × 9mm OD) ensure uniform stress distribution across fastened joints, preventing component loosening in vibration-prone applications. Meeting DIN 125 and ISO 7089 standards, these washers deliver consistent performance in electrical enclosures, machinery assembly, and automotive subsystems where dimensional stability and corrosion resistance are paramount. The controlled thickness variation (0.7-0.9mm) accommodates manufacturing tolerances while maintaining effective sealing surfaces in plating operations and outdoor equipment.

Specification Summary & Compliance

Manufactured to DIN 125 and ISO 7089 dimensional standards with precise metric sizing (4.3mm ID, 9mm OD, 0.7-0.9mm thickness). Constructed from 18-8 stainless steel for consistent mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Designed specifically for M4 screw applications with standardized flat washer geometry for reliable performance in industrial fastening systems.