Hexagonal With Flange (DIN 6921)
Hex Flange Bolts are regular hex head bolts with built-in washer and externally threaded body. … Hex flange bolt dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and iso metric thread profile.
- DIN 6921
- Material Grade: 8.8, 10.9
- Finish: BZP, HOT DIP GALV.
- Thread: METRIC
DIN 6921
Metric DIN 6921 Hexagon Flange Bolts are machine threaded bolts that have a circular washer like flange under the head that increases the bearing surface to distribute the load when the bolt is fastened to the substrate. DIN 6921 Hexagon Flange Bolts are available with and without serrations. BRK Industries offers the following sizes for immediate delivery from stock: Diameters ranging from M5 to M12 and up to 150mm long and available in A2 and marine grade A4 stainless steel.
Technical Specification for Hexagonal With Flange (DIN 6921)
| Nom. Dia. (d) | M6 | M8 | M10 | M12 | M14 | M16 | M20 | |
| Thread Pitch | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | |
| Thread Length (b) | L < 125mm | 18 | 22 | 26 | 30 | 34 | 38 | 46 |
| 125-200mm | – | 28 | 32 | 36 | 40 | 44 | 52 | |
| L > 200mm | – | – | 45 | 49 | 53 | 57 | 65 | |
| ds | Min. | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| Max. | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | |
| K | Max. | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 |
| Flange Diameter | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 | |
| e | Min. | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 |
| s | Min. | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 |
| Max. | 10 | 13 | 15 | 16 | 18 | 21 | 27 | |