DIN EN ISO 898-2:2023

Fasteners - Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts with specified property classes (ISO 898-2:2022); German version EN ISO 898-2:2022

This document specifies mechanical and physical properties of nuts with coarse thread and fine pitch thread made of carbon steel and alloy steel when tested at an ambient temperature range of 10 °C to 35 °C. Nuts conforming to the requirements of this standard are evaluated at that ambient temperature range. They may not retain the specified mechanical and physical properties at elevated and/or lower temperatures. This part of ISO 898 applies to nuts made of carbon steel or alloy steel with coarse thread from M5to M39 and find pitch thread from 1 mm to 39 mm, with triangular ISO metric thread according to ISO 68-1, with height of a least 0,45D, with a minimum outside diameter or width across flats of at least 1,45D, able to mate with bolts, screws and studs with property classes according to ISO 898-1.