Standard [CURRENT]
DIN 6929:2013-08
Screws with coarse thread and reduced shank for captive applications
- German title
- Schrauben mit Regelgewinde und dünnem Schaft zur Anwendung als Verliersicherung
- Publication date
- 2013-08
- Original language
- German
- Pages
- 8
- Note
- The publisher recommends this document in lieu of the withdrawn document DIN 7964:1990-07 , for which no replacement is available.
- Publication date
- 2013-08
- Original language
- German
- Pages
- 8
- Note
- The publisher recommends this document in lieu of the withdrawn document DIN 7964:1990-07 , for which no replacement is available.
- DOI
- https://dx.doi.org/10.31030/2017413
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This standard contains specifications for screws with threads from M3 to M30 with different head shapes and a shank diameter which is smaller than the core diameter of the thread. The shank style is intended in the designs K (short thread) and L (long thread). In the case of appropriate design of the bolted connections, the bolts and screws can be placed as captive elements; they can additionally be locked against loss, for example, by attaching a suitable locking device, where appropriate. These screws are not regarded as thin shank or expansion screws. The application of the standard is also analogously permitted for non-standardized products. Due to the shank diameter, the minimum breaking forces according to DIN EN ISO 8981, DIN EN ISO 3506-1 and DIN EN 28839 are not achieved. This document has been prepared by Working Committee NA 067-00-02 AA "Verbindungselemente mit metrischem Außengewinde" ("Fasteners with metric external threads") of the Fasteners Standards Committee (FMV) at DIN e. V.