NF E 25-151 – 2001- Bu lông lục giác
Screw Thread | M8 | M10 | M10 | M12 | M12 | M14 | M16 | M18 | M20 | M20 | M22 | M24 | ||||
P | Pitch | 1 | 1 | 1.25 | 1.5 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 1.5 | 2 | |||
k | Grade A | max | 5.45 | 6.58 | 6.58 | 7.68 | 7.68 | 8.98 | 10.18 | 11.715 | 12.715 | 12.715 | 14.215 | 15.215 | ||
min | 5.15 | 6.22 | 6.22 | 7.32 | 7.32 | 8.62 | 9.82 | 11.285 | 12.285 | 12.285 | 13.785 | 14.785 | ||||
Grade B | max | 5.54 | 6.69 | 6.69 | 7.79 | 7.79 | 9.09 | 10.29 | 11.85 | 12.85 | 12.85 | 14.35 | 15.35 | |||
min | 5.06 | 6.11 | 6.11 | 7.21 | 7.21 | 8.51 | 9.71 | 11.15 | 12.15 | 12.15 | 13.65 | 14.65 | ||||
s | Grade A | max | 13 | 16 | 16 | 18 | 18 | 21 | 24 | 27 | 30 | 30 | 34 | 36 | ||
min | 12.73 | 15.73 | 15.73 | 17.73 | 17.73 | 20.67 | 23.67 | 26.67 | 29.67 | 29.67 | 33.38 | 35.38 | ||||
Grade B | max | 13 | 16 | 16 | 18 | 18 | 21 | 24 | 27 | 30 | 30 | 34 | 36 | |||
min | 12.57 | 15.57 | 15.57 | 17.57 | 17.57 | 20.16 | 23.16 | 26.16 | 29.16 | 29.16 | 33 | 35 |
Screw Thread | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 | M56 | M60 | M64 | ||||
P | Pitch | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | |||
k | Grade A | max | – | – | – | – | – | – | – | – | – | – | – | – | ||
min | – | – | – | – | – | – | – | – | – | – | – | – | ||||
Grade B | max | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.50 | 35.50 | 38.50 | 40.50 | |||
min | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.50 | 34.50 | 37.50 | 39.50 | ||||
s | Grade A | max | – | – | – | – | – | – | – | – | – | – | – | – | ||
min | – | – | – | – | – | – | – | – | – | – | – | – | ||||
Grade B | max | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 70 | 85 | 90 | 95 | |||
min | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 |