This International Standard specifies the test procedure for evaluating the acceptability of surface discontinuities designated in ISO 6157-2 excluding nuts made of free cutting steel. It applies to nuts with – property classes to ISO 898-2 and ISO 898-6; – nominal thread diameter, d, from 5 mm up to and including 39 mm; – product grades A and B.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
ISO 2320:1997 Prevailing torque type steel hexagon nuts -- Mechanical and performance properties
ISO 6157-2:1995 Fasteners -- Surface discontinuities -- Part 2: Nuts
ISO 898-2:1992 Mechanical properties of fasteners -- Part 2: Nuts with specified proof load values -- Coarse thread
ISO 2320:1997 Prevailing torque type steel hexagon nuts -- Mechanical and performance properties
ISO 6157-2:1995 Fasteners -- Surface discontinuities -- Part 2: Nuts
ISO 898-2:1992 Mechanical properties of fasteners -- Part 2: Nuts with specified proof load values -- Coarse thread
ISO 898-6:1994 Mechanical properties of fasteners -- Part 6: Nuts with specified proof load values -- Fine pitch thread