DIN 2093 conical washer, 31 x 63 x 1.8 mm, Article number 2093316318. Property class / material: 42 - 52 hrc, surface finish plain. Conical Washer manufactured to DIN 2093. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution. Applications: load distribution and locking under bolt heads and nuts in machine building, structural steel, plant maintenance and marine outfitting.