Power Fittings DIN557 Class6 Cl8 HDG M16 Square Nuts
Power Fittings DIN557 Class6 Cl8 HDG M16 Square Nuts
Specification
Square Nuts Our expertise enables us to manufacture, export and supply a broad range of Square Nuts. Offered nuts are designed with high level of accuracy in tandem with the international standards. Manufactured using superior quality raw material with the help of advanced technology;
DIN 557 - Square Nuts
Current norm: DIN 557
Equivalent norms: CSN 021624; PN 82151; UNI 5597;
Legend:
m - height of the nut
d - the nominal diameter of the thread
s - size square
mw - height
Makings:QBH
Steel: 6 8
Stainless: A2, A4
Plastic: -
Non Ferrous: -
Thread: 7H
Table according to DIN 557:
dimensions in mm
| Thread size d |
M5 | M6 | M8 | M10 | M12 | M16 | |||
| P | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 | |||
| dw | min. | 6,7 | 8,7 | 11,5 | 14,5 | 15,5 | 16,5 | 17,2 | 22 |
| e | max. | 11,3 | 14,1 | 18,4 | 22,6 | 24 | 25,4 | 26,9 | 33,9 |
| min. | 9,93 | 12,53 | 16,34 | 20,24 | 21,54 | 22,84 | 24,02 | 30,11 | |
| m | Nominal size max. | 4 | 5 | 6,5 | 8 | 10 | 13 | ||
| min. | 3,52 | 4,52 | 5,92 | 7,42 | 9,42 | 12,3 | |||
| mw | min. | 2,5 | 3,2 | 4,1 | 5,2 | 6,6 | 8,6 | ||
| s | Nominal size max. | 8 | 10 | 13 | 16 | 17 | 18 | 19 | 24 |
| min. | 7,64 | 9,64 | 12,57 | 15,57 | 16,57 | 17,57 | 18,48 | 23,16 | |
| weight kg/1000pcs |
1,31 | 2,77 | 5,5 | 10,7 | 13 | 16,3 | 19,1 | 38,2 | |
Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
Class 6 and 8
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 |
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
Metric DIN 557 regular pattern square nuts are four sided nuts. Their geometry provides a greater surface area to apply higher torque when tightening and also a greater surface are in contact with the part being fastened, thereby increasing the resistance to loosening.
The engineering case
Bangladesh power facilities accessories project
Get in Touch
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