DIN 935 Hexagon Slotted Castle Metric Coarse Carbon Steel Nuts
Product application
Product Application The screw steel is widely used in the construction of civil engineering, such as houses, bridges, roads, etc. To highway, railway, bridges, culverts, tunnels, dams, flood control and other public facilities, small building foundation, beams, columns and walls, plates, rebar structure
Specification
DIN 935 - Hexagon slotted castle nuts
Current norm: DIN 935
Equivalent norms: ISO 7035; CSN 021411; PN 82148; UNI 5593;

Thread Size
d
| P | Pitch (Coarse thread) |
| Fine thread |
| Fine thread |
| da | max |
| min |
| de | max |
| min |
| dw | min |
| e | min |
| m | max=nominal size |
| min |
| w | max |
| min |
| m1 | min |
| n | max |
| min |
| s | max=nominal size |
| min |
| Series ② | Split Pin as in DIN EN ISO 1234 |
| per 1000 units ≈ kg |
| 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 |
| - | - | - | - | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 1.5 | 2 | 2 | 2 | 2 |
| - | - | - | - | - | 1 | 1.25 | - | - | 2 | 1.5 | 2 | - | - | - | - |
| 4.60 | 5.75 | 6.75 | 7.75 | 8.75 | 10.80 | 13.00 | 15.10 | 17.30 | 19.50 | 21.60 | 23.80 | 25.90 | 29.20 | 32.40 | 35.60 |
| 4.00 | 5.00 | 6.00 | 7.00 | 8.00 | 10.00 | 12.00 | 14.00 | 16.00 | 18.00 | 20.00 | 22.00 | 24.00 | 27.00 | 30.00 | 33.00 |
| / | / | / | / | / | / | 16.00 | 18.00 | 22.00 | 25.00 | 28.00 | 32.00 | 34.00 | 38.00 | 42.00 | 46.00 |
| / | / | / | / | / | / | 15.57 | 17.57 | 21.48 | 24.30 | 27.30 | 31.00 | 33.00 | 37.00 | 41.00 | 45.00 |
| 5.90 | 6.90 | 8.90 | 9.50 | 11.60 | 14.60 | 16.60 | 19.60 | 22.50 | 24.90 | 27.70 | 31.40 | 33.20 | 38.00 | 42.70 | 46.60 |
| 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 17.77 | 20.03 | 23.35 | 26.75 | 29.56 | 32.95 | 37.29 | 39.55 | 45.20 | 50.85 | 55.37 |
| 5.0 | 6.0 | 7.5 | 8.0 | 9.5 | 12.0 | 15.0 | 16.0 | 19.0 | 21.0 | 22.0 | 26.0 | 27.0 | 30.0 | 33.0 | 35.0 |
| 4.70 | 5.70 | 7.14 | 7.64 | 9.14 | 11.57 | 14.57 | 15.57 | 18.48 | 20.16 | 21.16 | 25.16 | 26.16 | 29.16 | 32.00 | 34.00 |
| 3.20 | 4.00 | 5.00 | 5.50 | 6.50 | 8.00 | 10.00 | 11.00 | 13.00 | 15.00 | 16.00 | 18.00 | 19.00 | 22.00 | 24.00 | 26.00 |
| 2.90 | 3.70 | 4.70 | 5.20 | 6.14 | 7.64 | 9.64 | 10.57 | 12.57 | 14.57 | 15.57 | 17.57 | 18.48 | 21.48 | 23.48 | 25.48 |
| 2.30 | 3.00 | 3.80 | 4.20 | 4.90 | 6.10 | 7.70 | 8.20 | 9.80 | 11.20 | 11.90 | 13.50 | 14.20 | 16.60 | 18.20 | 19.80 |
| 1.45 | 1.65 | 2.25 | 2.25 | 2.75 | 3.05 | 3.80 | 3.80 | 4.80 | 4.80 | 4.80 | 5.80 | 5.80 | 5.80 | 7.36 | 7.36 |
| 1.20 | 1.40 | 2.00 | 2.00 | 2.50 | 2.80 | 3.50 | 3.50 | 4.50 | 4.50 | 4.50 | 5.50 | 5.50 | 5.50 | 7.00 | 7.00 |
| 7 | 8 | 10 | 11 | 13 | 16 | 18 | 21 | 24 | 27 | 30 | 34 | 36 | 41 | 46 | 50 |
| 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 26.16 | 29.16 | 33.00 | 35.00 | 40.00 | 45.00 | 49.00 |
| 1x10 | 1.2x12 | 1.6x14 | 1.6x14 | 2x16 | 2.5x20 | 3.2x22 | 3.2x25 | 4x28 | 4x32 | 4x36 | 5x36 | 5x40 | 5x45 | 6.3x50 | 6.3x56 |
| 1.12 | 2.3 | 3.16 | 3.96 | 7.35 | - | - | - | 38.9 | 57.5 | 75.2 | - | 131 | 192 | 264 | 333 |
Thread Size d | |
| P | Pitch (Coarse thread) | | Fine thread | | Fine thread | | da | max | | min | | de | max | | min | | dw | min | | e | min | | m | max=nominal size | | min | | w | max | | min | | m1 | min | | n | max | | min | | s | max=nominal size | | min | | Series ② | Split Pin as in DIN EN ISO 1234 | | per 1000 units ≈ kg | | | 4 | 4 | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 | 6 | - | - | - | - | - | - | | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | | - | - | - | - | - | - | - | - | - | - | 4 | 4 | 4 | 4 | 4 | 4 | | 38.90 | 42.10 | 45.40 | 48.60 | 51.80 | 56.20 | 61.00 | 64.80 | 69.10 | 73.40 | 77.80 | 82.10 | 86.40 | 91.80 | 97.20 | 108.00 | | 36.00 | 39.00 | 42.00 | 45.00 | 48.00 | 52.00 | 56.00 | 60.00 | 64.00 | 68.00 | 72.00 | 76.00 | 80.00 | 85.00 | 90.00 | 100.00 | | 50.00 | 55.00 | 58.00 | 62.00 | 65.00 | 70.00 | 75.00 | 80.00 | 85.00 | 90.00 | 95.00 | 100.00 | 105.00 | 110.00 | 120.00 | 130.00 | | 49.00 | 53.80 | 56.80 | 60.80 | 63.80 | 68.80 | 73.80 | 78.80 | 83.60 | 88.60 | 93.60 | 98.60 | 103.60 | 108.60 | 118.60 | 128.40 | | 51.10 | 55.90 | 60.60 | 64.70 | 69.40 | 74.20 | 78.70 | 83.40 | 88.20 | 92.90 | 97.70 | 102.40 | 107.20 | 111.90 | 121.10 | 135.40 | | 60.79 | 66.44 | 71.30 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 | 110.51 | 116.16 | 121.81 | 127.46 | 133.11 | 144.08 | 161.02 | | 38.0 | 40.0 | 46.0 | 48.0 | 50.0 | 54.0 | 57.0 | 63.0 | 66.0 | 69.0 | 73.0 | 76.0 | 79.0 | 88.0 | 92.0 | 100.0 | | 37.00 | 39.00 | 45.00 | 47.00 | 49.00 | 52.80 | 55.80 | 61.80 | 64.80 | 67.80 | 71.80 | 74.80 | 77.80 | 86.60 | 90.60 | 98.60 | | 29.00 | 31.00 | 34.00 | 36.00 | 38 | 42 | 45 | 48 | 51 | 54 | 58 | 61 | 64 | 68 | 72 | 80 | | 28.48 | 30.28 | 33.38 | 35.38 | 37.38 | 41.38 | 44.38 | 47.38 | 50.26 | 53.26 | 57.26 | 60.26 | 63.26 | 67.26 | 71.26 | 79.26 | | 21.90 | 23.50 | 25.90 | 27.50 | 29.10 | 32.30 | 34.70 | 37.10 | 39.30 | 41.70 | 44.90 | 47.30 | 49.70 | 52.90 | 56.10 | 62.50 | | 7.36 | 7.36 | 9.36 | 9.36 | 9.36 | 9.36 | 9.36 | 11.43 | 11.43 | 11.43 | 11.43 | 11.43 | 11.43 | 14.43 | 14.43 | 14.43 | | 7.00 | 7.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 11.00 | 11.00 | 11.00 | 11.00 | 11.00 | 11.00 | 14.00 | 14.00 | 14.00 | | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 130 | 145 | | 53.80 | 58.80 | 63.10 | 68.10 | 73.10 | 78.10 | 82.80 | 87.80 | 92.80 | 97.80 | 102.80 | 107.80 | 112.80 | 117.80 | 127.50 | 142.50 | | 6.3x63 | 6.3x71 | 8x71 | 8x80 | 8x80 | 8x90 | 8x100 | 10x100 | 10x100 | 10x112 | 10x112 | 10x125 | 10x140 | 10x140 | 10x140 | 10x160 | | 447 | 584 | 710 | 860 | 1060 | 1300 | 1500 | 1800 | 2150 | 2500 | 2900 | 3300 | 3700 | 4100 | 5450 | 7600 | |
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 5 Class 6 Class 8 Class 10 Class 12
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 |
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.