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Hex Head Flange Bolts 12.9 Grade Alloy Steel Materials Phosphated Treatment DIN 6721
Description
The Hex head flange bolts are flanged hex head bolts or screws and are a similar addition to DIN 931 and DIN 933. They are a more attractive alternative and do not require a washer, because the area under the bolt head is wider and creates a larger area for even distribution of pressure. Manufactured in accordance with DIN 6721, manufactured in full thread, a small amount may be partially threaded
specification of hex head fanlge bolt partly threaded.pdf
Materials of the hex head flange bolt
Alloy Steel , hardness 33~38
Quick Details of the hex head flange bolt
| Size | M5-M20 | Thread type | Metric Fine |
| Materials | alloy steel | Treatment | Phosphated |
| customized | welcome | Packing | 100pcs per Box |
Standard Size of the hex head flange bolt
| d | M5 | M6 | M8 | M10 | M12 | M14 | M16 | |
| P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | |
| S | 7 | 8 | 10 | 13 | 15 | 18 | 21 | |
| d2 | Max | 11.4 | 13.6 | 17 | 20.8 | 24.7 | 28.6 | 32.8 |
| k | Max | 5.6 | 6.8 | 8.5 | 9.7 | 11.9 | 12.9 | 15.1 |
| L | 10~160mm | |||||||
For the customized size, Tell us the values d2*k*L*b*d1*S as following picture, everything else will be done by us for you.