DIN 928 - SQUARE WELD NUTS
Product application
Square weld nuts from QBH Fasteners have four small projections in their back ends to facilitate their welding on to the surface of other metals. The most significant advantage of using these nuts is that they can be welded into even imperfect and irregular surfaces without losing their balance. They come with a pilot hole using which fasteners can be inserted. The pilot hole is used for precision feeding of fasteners, allowing them to be inserted quickly and accurately on the metal. These nuts are used in automobile and other industrial applications. The projections allow for precision seating of the fastener as well.
In addition to possessing very high shear strength, they can also be used in applications which need to resist extremely high torque. It is available in stainless steel, carbon steel, and alloy steel to bear more wear and tear while also making it more corrosion resistant.
Legend:
s - size square
m - height of the nut
d - the nominal diameter of the thread
Makings:QBH
Steel: steel
Stainless:A2,A4
Plastic:-
Non Ferrous: -
Thread: 6G
Notes:
Table according to DIN 928:
dimensions in mm
| THREAD D1 | B | D2 | D3 | D4 | E | H1 | H2 | M | S | WEIGHT (7,85KG/DM3) KG/1000PCS |
| | | | | tolerance | H113 | max. | min. | min. | ±0,1 | min. | max | h14 | h14 | |
| M4 | - | - | 0,8 | ±0,15 | 5 | 4,2 | 6,4 | 9 | 0,6 | 0,4 | 1,3 | 3,5 | 7 | 0,81 |
| M5 | - | - | 1 | | 6 | 5,25 | 8,2 | 12 | 0,8 | 0,6 | 1,5 | 4,2 | 9 | 1,7 |
| M6 | - | - | 1,2 | | 7,5 | 6,3 | 9,1 | 13 | 0,8 | 0,7 | 1,8 | 5 | 10 | 2,4 |
| M8 | M8x1 | - | 1,5 | | 10 | 8,4 | 12,8 | 18 | 1 | 1,1 | 2 | 6,5 | 14 | 6,5 |
| M10 | M10x1,25 | M10x1 | 1,8 | ±0,2 | 12,5 | 10,5 | 15,6 | 22 | 1,2 | 1,25 | 2,2 | 8 | 17 | 11,3 |
| - | - | 7/16-20 UNF-2B | 1,8 | | 12,5 | 11,7 | 15,6 | 22 | 1,2 | 1,25 | 2,2 | 9 | 17 | 12,5 |
| - | - | 7/16-20 UNF-2B | 2 | | 13,5 | 11,7 | 17,4 | 25 | 1,4 | 1,75 | 3 | 9 | 19 | 16,5 |
| M12 | M12x1,25 | M12x1,5 | 2 | | 13,5 | 12,6 | 17,4 | 25 | 1,4 | 1,75 | 3 | 9,5 | 19 | 16,6 |
| (M14) | (M14x1,5) | - | 2,5 | | 16,8 | 14,7 | 20,4 | 28 | 1,4 | 1,75 | 3,2 | 11,4 | 22 | 26,7 |
| (M16) | (M16x1,5) | - | 2,5 | | 18,8 | 16,8 | 22,4 | 32 | 1,6 | 2 | 4 | 13 | 24
| |
Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
Class 6 Class 8 Class 10
Materials and Chemical compstition
1008
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | Ni | Cu | Al |
| 0.06 | 0.06 | 0.33 | 0.013 | 0.003 | 0.01 | 0 | 0.01 | 0.028 |
1035
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.34 | 0.13 | 0.73 | 0.012 | 0.002 | 0.02 | 0.01 | 0.02 |
10B21
| CHEMICAL COMPOSI % |
| C | Si | Mn | P | S | Cr | B |
| 0.2 | 0.04 | 0.81 | 0.017 | 0.007 | 0.017 | 0.0021 |
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 Tags:
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PN 82169 M5 to M16 CLASS 10 DIN 928 Square Weld Nut Images
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