Specification
ISO 4775 - Hexagon nuts with large widths across flats for high-voltage connections
Nominal size and thread pitch d | S | E | M | dw | C | Total runout of bearing surface | ||||
Width across flats | Width across corners | Thickness | Bearing face diameter | Washer face thickness | ||||||
max | min | max | min | max | min | min | max | min | max | |
M16 x 2 | 27 | 26.16 | 31.18 | 29.56 | 17.1 | 16.4 | 24.9 | 0.8 | 0.4 | 0.47 |
M20 x 2.5 | 34 | 33 | 39.26 | 37.29 | 20.7 | 19.4 | 31.4 | 0.8 | 0.4 | 0.58 |
M22 x 2.5 | 36 | 35 | 41.57 | 39.55 | 23.6 | 22.3 | 33.3 | 0.8 | 0.4 | 0.63 |
M24 x 3 | 41 | 40 | 47.34 | 45.2 | 24.2 | 22.9 | 38 | 0.8 | 0.4 | 0.72 |
M27 x 3 | 46 | 45 | 53.12 | 50.85 | 27.6 | 26.3 | 42.8 | 0.8 | 0.4 | 0.8 |
M30 x 3.5 | 50 | 49 | 57.74 | 55.37 | 30.7 | 29.1 | 46.6 | 0.8 | 0.4 | 0.87 |
M36 x 4 | 60 | 58.8 | 69.28 | 66.44 | 36.6 | 35 | 55.9 | 0.8 | 0.4 | 1.05 |
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
ISO4775 10S
Materials and Chemical compstition
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 |
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 |
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 |
Finish
BLACK HDG ZP YZP Dacromet 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
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