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As specialists in the field of stainless steel fasteners, screws and nuts, Lederer is broadening its assortment of washers. Four different types in accordance with the French standard NFE 25-514 are in stock in the sizes from M3 to M24 in stainless steel A2.. The types Z, M, L and LL are distinguishable by means of their divergent inner and outer diameters and have the minimum hardness of 150HV (compared with DIN, e.g. washers DIN 125: min. 140HV) that is specified in the French standard. 。 Some individual dimensions of the types Z (M5, 10, 12 and 16) and LL (M16) have the same dimensions as DIN 125 (type Z) and 9021 (type LL) washers, and with regard to the others, the differences in dimensions are in many cases only minor.