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DIN 267-15 1983 Edition, November 1, 1983
Complete Document
Superseded By: DIN EN ISO 2320
Fasteners Technical delivery conditions Prevailing torque type nuts
Includes all amendments and changes through Change/Amendment , November 1983
Additional Comments: ENGLISH * W/D S/S BY DIN EN ISO 2320
Page Count:11
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Field of application

The property classes, mechanical and performance properties and the methods of test listed in this standard apply to prevailing torque type nuts

- with nominal thread diameters from 3 to 39 mm;

- with ISO metric thread as specified in the DIN 13 standard series;

- with styles as specified in the appropriate product standards in which reference is made to this standard;

- made from alloy or non-alloy steel;

- for applications at temperatures from

-50 to+ 120°C for nuts with a non-metallic insert,

- 50 to+ 300 °C for all-metal non-plated nuts,

- 50 to+ 230 °C for all-metal plated nuts.

This standard does not apply to nuts that have to meet particular requirements regarding e.g.

- weldability;

- corrosion resistance;

- lower and higher application temperatures which require special materials or coatings.

Note. A standard is in preparation to cover the requirements on the ratio of the torque to the clamp load on prevailing torque type nuts.