S-91116A350 5.3 mm ID x 15 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Precise dimensional fit with 5.3mm ID and 15mm OD ensuring perfect alignment with M5 screws
• Superior load distribution through DIN 9021 compliant flat design, preventing surface damage and loosening
• Enhanced durability with Rockwell B68 hardness, maintaining structural integrity under repeated stress
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable operations
• Reliable performance in demanding applications with consistent 1.0-1.4mm thickness for uniform pressure distribution
• Long-term cost efficiency through corrosion-resistant properties reducing replacement frequency

Professional Applications & Engineering Value

Engineered for precision industrial applications, these M5 flat washers with Black-Oxide 18-8 Stainless Steel construction provide critical solutions for assembly challenges. The DIN 9021 specification ensures optimal load distribution across mating surfaces, preventing bolt loosening and material deformation in high-vibration environments. The metric measurement system compatibility makes them ideal for European machinery and global manufacturing equipment. The black-oxide surface treatment enhances corrosion resistance in chemical processing, marine, and outdoor applications while maintaining dimensional stability. These industrial washers deliver reliable performance in automotive assemblies, electrical enclosures, and heavy machinery where consistent clamping force and environmental resistance are paramount.

Specification Summary & Compliance

This M5 flat washer features precise metric dimensions with 5.3mm inner diameter and 15mm outer diameter, manufactured to DIN 9021 standards for dimensional accuracy and performance reliability. The 18-8 Stainless Steel material with Rockwell B68 hardness ensures mechanical durability, while thickness ranges from 1.0-1.4mm maintain consistent performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and regulatory adherence for industrial applications worldwide.