Шайбы плоские. Крупная серия. Классы изделия А и С
Название (англ.):
Plain washers; Large series; Product grades A and C
Описание (англ.):
Specifies products with outside diameter three times nominal size, preferable for hexagon bolts, screws and nuts with width across flats according to ISO 272, with thread sizes form M 3 up to and including M 36.