S-91455A490 19 mm ID x 34 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from zinc-flake coating, extending service life in harsh industrial environments
• Exceptional hardness (Rockwell B91) provides reliable load distribution and prevents deformation under pressure
• Precision dimensional compliance with DIN 125/ISO 7089 ensures perfect fit with M18 fasteners and consistent performance
• Environmental regulation compliance with RoHS 3 and REACH meets global sustainability requirements
• Optimized thickness range (2.7-3.3mm) delivers ideal compression characteristics for vibration resistance
• Standardized metric dimensions (19mm ID/34mm OD) guarantee interchangeability across international projects
• Heavy-duty steel construction maintains structural integrity in high-stress mechanical applications

Professional Applications & Engineering Value

This zinc-flake coated steel flat washer delivers critical engineering solutions where corrosion prevention and dimensional stability are paramount. The M18-compatible design with precise 19mm internal diameter and 34mm outer diameter creates optimal surface distribution for bolted connections in structural steelwork, heavy machinery, and automotive assemblies. The Rockwell B91 hardness rating ensures the washer maintains its flatness under sustained clamping forces, preventing loosening in vibrating environments. Manufactured to DIN 125 and ISO 7089 standards, this metric flat washer provides guaranteed dimensional consistency for international engineering projects requiring standardized components. The advanced zinc-flake coating technology offers superior protection compared to conventional platings, making it ideal for outdoor infrastructure, chemical processing equipment, and marine applications where environmental exposure would compromise ordinary washers.

Specification Summary & Compliance

This precision flat washer features dimensional specifications of 19mm ID, 34mm OD, and 2.7-3.3mm thickness range, manufactured to DIN 125 and ISO 7089 standards for guaranteed interchangeability. The component maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, with material certification for zinc-flake coated steel and Rockwell B91 hardness verification. Manufacturing follows international quality control protocols ensuring consistent performance across production batches for industrial applications requiring reliable fastening solutions.