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Stainless steel hex nuts are ideal for general-purpose fastening in outdoor and marine environments where rust resistance is crucial.
Their stainless steel construction ensures long-lasting reliability in varied applications, from construction to equipment assembly.
| Name | Hex Nuts | Materials | Carbon Steel/Stainless Steel |
| Standards | DIN ISO ANC BSW JIS etc. | Strength level | 4 5 8 10 12 A2-70 A4-70 A4-80 etc. |
| Size | M3-M50 | Surface finish | ZPHDGBLACKDacromet etc. |
| Length | 1-32 | Samples | Available |
| Thread specification | M1 | M1.2 | M1.4 | M1.6 | M1.7 | M2 | M2.3 | M2.5 | M2.6 | M3 | M3.5 | M4 | M5 | M6 | M7 | M8 | |
| d | |||||||||||||||||
| P | coarse teeth | 0.25 | 0.25 | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.45 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 |
| fine teeth | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | 1 | |
| very fine teeth | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | |
| k | max = nominal | 0.8 | 1 | 1.2 | 1.3 | 1.4 | 1.6 | 1.8 | 2 | 2 | 2.4 | 2.8 | 3.2 | 4 | 5 | 5.5 | 6.5 |
| minimum | 0.55 | 0.75 | 0.95 | 1.05 | 1.15 | 1.35 | 1.55 | 1.75 | 1.75 | 2.15 | 2.55 | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | |
| s | max = nominal | 2.5 | 3 | 3 | 3.2 | 3.5 | 4 | 4.5 | 5 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 |
| minimum | 2.4 | 2.9 | 2.9 | 3.08 | 3.38 | 3.88 | 4.32 | 4.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | |
| e ① | minimum | 2.71 | 3.28 | 3.28 | 3.48 | 3.82 | 4.38 | 4.88 | 5.45 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 |
| * | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | |
| Thousand pieces (steel)≈kg | 0.03 | 0.054 | 0.063 | 0.076 | 0.1 | 0.142 | 0.2 | 0.28 | 0.72 | 0.384 | 0.514 | 0.81 | 1.23 | 2.5 | 3.12 | 5.2 | |
| Thread specification | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | |
| d | |||||||||||||||||
| P | coarse teeth | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 |
| fine teeth | 1.25 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | |
| very fine teeth | 1 | 1.5 | / | / | 2 | 2 | 2 | / | / | / | / | / | / | / | / | / | |
| k | max = nominal | 8 | 10 | 11 | 13 | 15 | 16 | 18 | 19 | twenty two | twenty four | 26 | 29 | 31 | 34 | 36 | 38 |
| minimum | 7.64 | 9.64 | 10.3 | 12.3 | 14.3 | 14.9 | 16.9 | 17.7 | 20.7 | 22.7 | 24.7 | 27.4 | 29.4 | 32.4 | 34.4 | 36.4 | |
| s | max = nominal | 17 | 19 | twenty two | twenty four | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 |
| minimum | 16.73 | 18.67 | 21.67 | 23.67 | 26.16 | 29.16 | 31 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.8 | 68.1 | 73.1 | |
| e ① | minimum | 18.9 | 21.1 | 24.49 | 26.75 | 29.56 | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 72.09 | 76.95 | 82.6 |
| * | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | |
| Thousand pieces (steel)≈kg | 11.6 | 17.3 | 25 | 33.3 | 49.4 | 64.4 | 79 | 110 | 165 | 223 | 288 | 393 | 502 | 652 | 800 | 977 | |
| Thread specification | M52 | M56 | M60 | M64 | M68 | M72 | M76 | M80 | M85 | M90 | M100 | M110 | M125 | M140 | M160 | |
| d | ||||||||||||||||
| P | coarse teeth | 5 | 5.5 | 5.5 | 6 | 6 | / | / | / | / | / | / | / | / | / | / |
| fine teeth | 3 | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | |
| very fine teeth | / | / | / | / | / | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | / | / | |
| k | max = nominal | 42 | 45 | 48 | 51 | 54 | 58 | 61 | 64 | 68 | 72 | 80 | 88 | 100 | 112 | 128 |
| minimum | 40.4 | 43.4 | 46.4 | 49.1 | 52.1 | 56.1 | 59.1 | 62.1 | 66.1 | 70.1 | 78.1 | 85.8 | 97.8 | 109.8 | 125.5 | |
| s | max = nominal | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 130 | 145 | 155 | 180 | 200 | 230 |
| minimum | 78.1 | 82.8 | 87.8 | 92.8 | 97.8 | 102.8 | 107.8 | 112.8 | 117.8 | 127.5 | 142.5 | 152.5 | 177.5 | 195.4 | 225.4 | |
| e ① | minimum | 88.25 | 93.56 | 99.21 | 104.86 | 110.51 | 116.16 | 121.81 | 127.46 | 133.11 | 144.08 | 161.02 | 172.32 | 200.57 | 220.8 | 254.7 |
| * | / | / | / | / | / | / | / | / | / | / | / | 170 | 196 | 216 | 248 | |
| Thousand pieces (steel)≈kg | 1220 | 1420 | 1690 | 1980 | 2300 | 2670 | 3040 | 3440 | 3930 | 4930 | 6820 | 8200 | 13000 | 17500 | 26500 | |
| ①,e In the case of size M110 or larger, the hexagonal edge can be rounded. | ||||||||||||||||
Our A2-70 304 stainless steel hex nuts are built for versatility, offering up to 25% more corrosion resistance than standard carbon steel nuts. These nuts perform well in moist and humid environments, ideal for outdoor projects.
Befast’s commitment to quality means each nut is thoroughly tested, ensuring stable, rust-resistant performance. Choose our A2-70 hex nuts for durable, low-maintenance fastening.
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