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DIN 6929

Screws with coarse thread and reduced shank for captive applications

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Organization: DIN
Publication Date: 1 August 2013
Status: active
Page Count: 8
ICS Code (Bolts, screws, studs): 21.060.10
scope:

This standard specifies requirements for M3 to M30 bolts and screws ("bolts", for short) with various head styles and a diameter of the unthreaded portion of the shank smaller than the minor diameter. It covers bolts with two types of shank designs: short (K) and long (L).

These bolts can be designed as captive fasteners, e.g. by using a snap ring, where required, as a safeguard to prevent the screw from working loose (see Annex A).

Although such bolts have a reduced shank, they are not considered waisted shank bolts or expansion bolts.

The application of this standard is also permissible analogously for non-standardized products. Due to the shank diameter, the minimum ultimate tensile loads according to DIN EN ISO 898-1, DIN EN ISO 3506-1 and DIN EN 28839 are not reached.

Document History

DIN 6929
August 1, 2013
Screws with coarse thread and reduced shank for captive applications
This standard specifies requirements for M3 to M30 bolts and screws (“bolts”, for short) with various head styles and a diameter of the unthreaded portion of the shank smaller than the minor...

References

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