International Standard defining characteristics of normal- series, product-grade-A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) r ranging from 1.6 mm to 64 mm inclusive. Washers of hardness class 200 HV are suitable for: hexagonal bolts and screws of product grades A & B in property classes up to and including 8.8; hexagon nuts of product grades A & B in property classes up to and including 8; hexagon bolts, screws and nuts of stainless steel of similar chemical compostion; case-hardened thread rolling screws. Washer hardness class 300 HV suitable for: hexagon bolts and screws of product grades A & B in property classes up to and including 10.9; hexagon nuts of product grades A & B in property classes up to and including 10.

DS EN ISO 7089 : 2000 - Identical

DIN 125-1 : 1990 - Similar to

SANS 1700-16-2 : 1ED 2003(R2015) - Identical

DIN 125-2 E : 1990 - Similar to

DIN 125-1 E : 1990 - Similar to

SS-EN ISO 7089 : 2000 - Identical

DIN 125-2 : 1990 - Similar to

PN EN ISO 7089 : 2004 - Identical