DIN 609 Hexagon Fit Bolts
M10 - M24
Grade 8.8
We supply DIN 609 hexagon fit bolts in grade 8.8, from M10 to M24. The shank is ground to a k6 tolerance and bears in an H7 reamed hole, so the bolt itself locates the joint and carries shear without movement - doing the work of a dowel and a bolt in one fastener.
Also known as: fit bolt, fitted bolt, close tolerance bolt, reamer bolt, shear bolt.
DIN 609 dimensions
| Diameter | Pitch | Thread length: L ≤ 50mm | Thread length: L > 50mm | Shank diameter (k6) | Hole tolerance | Head depth | Across flats |
|---|---|---|---|---|---|---|---|
| M10 | 1.5mm | 17.5mm | 19.5mm | 11mm | H7 | 6.4 | 16 |
| M12 | 1.75mm | 20.5mm | 22.5mm | 13mm | H7 | 7.5 | 18 |
| M16 | 2.0mm | 25.0mm | 27.0mm | 17mm | H7 | 10 | 24 |
| M20 | 2.5mm | 28.5mm | 30.5mm | 21mm | H7 | 12.5 | 30 |
| M24 | 3.0mm | - | 36.5mm | 25mm | H7 | 15 | 36 |
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