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Hexagon nut with flange | Standard metric thread | Strength class 5 | Zinc coating Zn
The knurled flanged nut to DIN 6923 is a fastener designed for bolted joints with standard metric threads. The integrated flange increases the contact area, distributes the load evenly and, in many applications, eliminates the need for an additional washer.
The knurling beneath the flange improves the nut’s grip on the mounting surface and helps to reduce the risk of the connection loosening spontaneously due to vibrations. The product is made from Grade 5 steel and has a zinc coating, which provides basic protection against corrosion under typical operating conditions.
The DIN 6923 nut is designed for use with bolts and threaded rods of a compatible size and standard thread pitch. It is suitable for use in the assembly of machinery, equipment and steel structures, as well as in mass production and workshop applications.
| Size M | D [mm] | S [mm] | E [mm] | W [mm] | Spanner size [mm] |
|---|---|---|---|---|---|
| M4 | 9.8 | 7 | 7.66 | 4.5 | 7 |
| M5 | 11.8 | 8 | 8.79 | 5.0 | 8 |
| M6 | 14.2 | 10 | 11.05 | 6.0 | 10 |
| M8 | 17.9 | 13 | 14.38 | 8.0 | 13 |
| M10 | 21.8 | 17 | 18.90 | 10.0 | 17 |
| M12 | 26.8 | 19 | 21.10 | 12.0 | 19 |
| M14 | 29.9 | 21 | 23.36 | 14.0 | 22 |
| M16 | 34.5 | 24 | 26.75 | 16.0 | 24 |
| M20 | 42.8 | 30 | 32.95 | 20.0 | 30 |
Dimensions are given in millimetres. D denotes the flange diameter, S — the dimension between the wrench faces, E — the dimension across the corners, and W — the nut height.
The DIN 6923 Class 5 knurled flanged nut, galvanised, is a practical solution for bolted joints requiring an increased clamping surface and additional protection against loosening. The integrated flange and knurling facilitate installation without the need for an additional washer, making the product ideal for structures, equipment, assembly work and industrial applications.
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