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Grade 8 hex nuts are ideal for heavy-duty construction and industrial projects where secure fastening is essential.
Manufactured with precision, they deliver reliable, long-lasting performance under load.
| 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 Grade 8 hex nuts provide up to 30% higher load-bearing capacity than lower-grade nuts, designed for critical applications that demand superior strength. Each nut is quality-tested to meet stringent standards, ensuring consistency in demanding environments.
These nuts offer easy installation and stable support, making them a top choice for high-strength fastening needs. Trust Befast’s Grade 8 hex nuts for dependable performance in heavy-duty projects.
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