Urgently Needed from Stock. With 2.2 or 3.1 Certificates HEXAGON NUT M16 MATERIA - 1.4436K-80 ISO 4032 3000 PCS HEXAGON SOCKET MUSHROOM M6X16 - 1.4436K-80 200 PCS SERRATED LOCK WASHER 8,4 - 1.4310 X12CRNI DIN 6798 500 PCS SERRATED LOCK WASHER A13 - 1.4310 X12CRNI DIN 6798 300 PCS