Specification
DIN 6915 - Hexagon nuts with large widths across flats for high-voltage connections
Current norm: DIN EN 14399-4
Equivalent norms: ISO 4775; PN 82171; UNI 5713; EU 780;
Legend:
s - size of the hexagon
e - the diameter of the circumscribed circle (not less than)
m - height of the nut
d - the nominal diameter of the thread
dw - contact surface diameter
Makings:QBH HV 10
Steel: 10
Stainless: -
Plastic: -
Non Ferrous: -
Thread: 6H
Table according to DIN 6915:
dimensions in mm
| thread size d | M12 | M16 | M20 | M22 | M24 | M27 | M30 | M36 |
| P | 1,75 | 2 | 2,5 | 2,5 | 3 | 3 | 3,5 | 4 |
| dw | Min. | 20 | 25 | 30 | 34 | 39 | 43,5 | 47,5 | 57 |
| e | Min. | 23,91 | 29,56 | 35,03 | 39,55 | 45,2 | 50,85 | 55,37 | 66,44 |
| m | Nominal size = max. | 10 | 13 | 16 | 18 | 19 | 22 | 24 | 29 |
| Min. | 9,64 | 12,3 | 14,9 | 16,9 | 17,7 | 20,7 | 22,7 | 27,7 |
| m´ | Min. | 7,71 | 9,84 | 11,92 | 13,52 | 14,16 | 16,56 | 18,16 | 22,16 |
| s | Nominal size = max. | 22 | 27 | 32 | 36 | 41 | 46 | 50 | 60 |
| Min. | 21,16 | 26,16 | 31 | 35 | 40 | 45 | 49 | 58,8 |
| Weight kg/1000pcs | 23,3 | 44,8 | 73,9 | 104 | 155 | 224 | 300 | 515 |
| QBH. No. | Size | Pitch (p) | Width across corner (e) | Width across Flat (s) | Thickness (m) | da | dw | Minor diameter (Bore) (d) |
| QBH-8 | M-39 | 4.0 | 71.30 | 63.10 | 65.00 | 29.40 | 31.00 | 33.00 | 35.60 | 60.00 | 35.10 | 35.20 |
| QBH-9 | M-42 | 4.5 | 76.95 | 68.10 | 70.00 | 32.40 | 34.00 | 36.00 | 38.90 | 64.70 | 37.70 | 37.80 |
| QBH-10 | M-45 | 4.5 | 82.60 | 73.10 | 75.00 | 34.40 | 36.00 | 39.00 | 42.10 | 69.50 | 40.90 | 41.00 |
| QBH-11 | M-48 | 5.0 | 88.25 | 78.10 | 80.00 | 36.40 | 38.00 | 42.00 | 45.40 | 74.20 | 43.10 | 43.20 |
| QBH-12 | M-56 | 5.5 | 99.20 | 87.80 | 90.00 | 43.40 | 45.00 | 45.00 | 48.60 | 83.40 | 50.80 | 50.90 |
| QBH-13 | M-64 | 6.0 | 110.50 | 97.80 | 100.00 | 49.10 | 51.00 | 48.00 | 51.80 | 92.90 | 57.80 | 57.90 |
Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨make heat treatment(if need) ➨ Finish ➨ Packing
Hot forging
Cutting material ➨ hot forging ➨ turning ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
Class 10
Materials and Chemical compstition
1045
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.45 | 0.23 | 0.58 | 0.014 | 0.006 | 0.057 | 0.008 | 0.016 |
40CR
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.4 | 0.21 | 0.54 | 0.015 | 0.008 | 0.95 | 0.02 | 0.02 |
35CRMO
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
| 0.35 | 0.22 | 0.59 | 0.01 | 0.003 | 0.93 | 0.01 | 0.01 | 0.21 |
42CRMO
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
| 0.42 | 0.27 | 0.92 | 0.013 | 0.004 | 1.01 | 0.03 | 0.04 | 0.2 |
Finish
PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
MECHANICAL PROPERTY
TESTING STANDARD:DIN267- 4 OR ISO898-2
| SIZE | CLASS |
| 04 | 05 |
PROOF LOAD
N/mm2 |
HV | NUT | PROOF LOAD
N/mm2 |
HV | NUT |
| ＞ | ≤ | min | max | HEAT TREATMENT | TYPE | min | max | HEAT TREATMENT | TYPE |
| / | M4 | 380 | 188 | 302 | NO | THIN NUT | 500 | 272 | 353 | YES | THIN NUT |
| M4 | M7 |
| M7 | M10 |
| M10 | M16 |
| M16 | M39 |
| SIZE | CLASS |
| 4 | 5 |
PROOF LOAD
N/mm2 | HV | NUT | PROOF LOAD
N/mm2 | HV | NUT |
| ＞ | ≤ | min | max | HEAT TREATMENT | TYPE | min | max | HEAT TREATMENT | TYPE |
| / | M4 | / | / | / | / | / | 520 | 130 | 302 | NO | 1 |
| M4 | M7 | 580 |
| M7 | M10 | 590 |
| M10 | M16 | 610 |
| M16 | M39 | 510 | 117 | 302 | NO | 1 | 630 | 146 |
| SIZE | CLASS |
| 6 | 8 |
PROOF LOAD
N/mm2 | HV | NUT | PROOF LOAD
N/mm2 | HV | NUT |
| ＞ | ≤ | min | max | HEAT TREATMENT | TYPE | min | max | HEAT TREATMENT | TYPE |
| / | M4 | 600 | 150 | 302 | NO | 1 | 800 | 180 | 302 | NO | 1 |
| M4 | M7 | 670 | 855 | 200 |
| M7 | M10 | 680 | 870 |
| M10 | M16 | 700 | 880 |
| M16 | M39 | 720 | 170 | 920 | 233 | 353 | YES |
| SIZE | CLASS |
| 8 | 9 |
PROOF LOAD
N/mm2 | HV | NUT | PROOF LOAD
N/mm2 | HV | NUT |
| ＞ | ≤ | min | max | HEAT TREATMENT | TYPE | min | max | HEAT TREATMENT | TYPE |
| / | M4 | / | / | / | / | / | 900 | 170 | 302 | NO | 2 |
| M4 | M7 | 915 | 188 |
| M7 | M10 | 940 |
| M10 | M16 | 950 |
| M16 | M39 | 890 | 180 | 302 | NO | 2 | 920 |
| SIZE | CLASS |
| 10 | 12 |
PROOF LOAD
N/mm2 | HV | NUT | PROOF LOAD
N/mm2 | HV | NUT |
| ＞ | ≤ | min | max | HEAT TREATMENT | TYPE | min | max | HEAT TREATMENT | TYPE |
| / | M4 | 1040 | 272 | 353 | YES | 1 | 1140 | 295 | 353 | YES | 1 |
| M4 | M7 | 1040 | 1140 |
| M7 | M10 | 1040 | 1140 |
| M10 | M16 | 1050 | 1140 |
| M16 | M39 | 1060 | / | / | / | / | / |
| SIZE | CLASS | |
| 12 |
PROOF LOAD
N/mm2 | HV | NUT |
| ＞ | ≤ | min | max | HEAT TREATMENT | TYPE |
| / | M4 | 1150 | 272 | 353 | YES | 2 |
| M4 | M7 | 1150 |
| M7 | M10 | 1160 |
| M10 | M16 | 1190 |
| M16 | M39 | 1200 |
The advantages of QBH
- QBH brand sales to the main quality assurance.
- Years of export trade management, excellent service, word-of-mouth guarantee.
- By working with TUV,escort for quality.
- Customization of non-standard parts can be made according to customer's requirements and drawings.
- For quality customers,we can provide a certain credit period.
Product application
DIN 6915 Grade Class 10 Material Steel Coating Plain Unit Metric Description High Strength. Structural Nut. Application Internal Thread, For Bolt, For Cap Screw, For Threaded Rod, For Anchor Bolt Availability In select sizes. Special order
Product Tags:
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DIN 6915 Large Widths M12 To 64 Carbon Steel Nuts Images
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