Standards:   | 
                  DIN6797A - toothed lock washer with external teeth  
                    DIN6797J - toothed lock washer with internal teeth  
                      DIN6797V -
                      toothed lock washer, countersunk  
                      DIN6798A - serrated lock washer with external teeth  
                        DIN6798J - serrated lock washer with internal teeth  
                        DIN6798V -
                        serrated lock washer, countersunk  
                    ASME B18.21.2M - toothed lock washer with ext./int. teeth  
                    IFI 532 - toothed lock washer with external/internal teeth  
                    Q410 - serrated lock washer with internal teeth  
                    Q412 - serrated lock washer with exteral teeth  
                    Q414 - serrated lock washer, countersunk
  |