DIN 267-24:2007 PDF

Scope: This standard contains hardness classes for nuts which do not have to withstand specified proof loads. The hardness classes specified have been classified according to minimum hardness values from which, however, no conclusions can be drawn with regard to the Ioadability of the nuts or their resistance to stripping. The functional properties of nuts depend on their form. This standard does not apply to the following: nuts subjected to specified proof loads to DIN EN 20898-2 and DIN EN ISO 898-6; prevailing torque-type nuts to DIN EN ISO 2320; nuts with special requirements, such as weldability, corrosion resistance (see DIN EN ISO 3506-2), high- temperature strength (i.e. at temperatures over +300~C) or low-temperature toughness (i.e. at temperatures below-50 ~C (see DIN 267-13)). NOTE Nuts made of free-cutting steel shall not be used at temperatures over +250 ~C.

DIN 267-24:2007 Referenced Document

DIN EN 20898-2
DIN EN ISO 18265 Metallic materials - Conversion of hardness values (ISO 18265:2013); German version EN ISO 18265:2013*， 2014-02-01 Update
DIN EN ISO 2320 Fasteners - Prevailing torque steel nuts - Functional properties (ISO 2320:2015); German version EN ISO 2320:2015*， 2016-05-01 Update
DIN EN ISO 3506-2 Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 2: Nuts with specified grades and property classes (ISO 3506-2:2020); German version EN ISO 3506-2:2020*， 2020-08-01 Update
DIN EN ISO 6157-2 Fasteners - Surface discontinuities - Part 2: Nuts (ISO 6157-2:1995); German version EN ISO 6157-2:2004
DIN EN ISO 6506-1 Metallic materials - Brinell hardness test - Part 1: Test method (ISO/DIS 6506-1:2023); German and English version prEN ISO 6506-1:2023 / Note: Date of issue 2023-10-20*Intended as replacement for DIN EN ISO 6506-1 (2015-02).*， 2023-11-01 Update
DIN EN ISO 6507-1 Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1:2023); German version EN ISO 6507-1:2023*， 2024-01-01 Update
DIN EN ISO 898-6

2007 DIN 267-24:2007-10 Fasteners - Technical delivery conditions - Part 24: Hardness classes for nuts without specified proof load values
2007 DIN 267-24:2007 Fasteners - Technical delivery conditions - Part 24: Hardness classes for nuts without specified proof load values
1983 DIN 267-24:1983 Fasteners; technical delivery conditions; property classes for nuts (hardness classes)