These M30 × 56 mm flat washers conform to ISO 7089 and are made from 200HV stainless steel (A2) with a natural finish. The external diameter is 56 mm with a thickness of 4.3 mm, providing reliable load‑bearing performance. They feature a precise internal diameter of 31 mm and are supplied in a standard metric measurement system. The washers are suitable for a range of fastening applications where durability and corrosion resistance are required.

    
              
          
Accu Product Code (APC)
          
HPW-M30-V1-A2
        
              
          
For Use With Thread Size
          
M30 (30 mm)
        
              
          
External Diameter (OD)
          
56 mm (Tolerance: +0/-0.74 mm)
        
              
          
Thickness (T)
          
4.3 mm (Tolerance: +0/-0.6 mm)
        
              
          
Material
          
Stainless Steel - 200HV (A2)
        
              
          
Finish
          
Natural
        
              
          
Internal Diameter (ID)
          
31 mm (Tolerance: +0.39/-0 mm)
        
              
          
Manufacturing Standard
          
ISO 7089
        
              
          
Material Family
          
Stainless Steel
        
              
          
System of Measurement
          
Metric