NF E 25-112 – 2001 – Bu lông lục giác
Screw Thread | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | |||
P | Pitch | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | ||
b | L≤125 | 9 | 10 | 11 | 12 | 13 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | ||
125<L≤200 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | |||
L>200 | 28 | 29 | 30 | 31 | 32 | 33 | 35 | 37 | 41 | 45 | 49 | 53 | 57 | |||
ds | max | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | ||
min | Grade A | 1.46 | 1.86 | 2.36 | 2.86 | 3.32 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | ||
Grade B | 1.35 | 1.75 | 2.25 | 2.75 | 3.2 | 3.7 | 4.7 | 5.7 | 7.64 | 9.64 | 11.57 | 13.57 | 15.57 | |||
k | Grade A | max | 1.225 | 1.525 | 1.825 | 2.125 | 2.525 | 2.925 | 3.65 | 4.15 | 5.45 | 6.58 | 7.68 | 8.98 | 10.18 | |
min | 0.975 | 1.275 | 1.575 | 1.875 | 2.275 | 2.675 | 3.35 | 3.85 | 5.15 | 6.22 | 7.32 | 8.62 | 9.82 | |||
Grade B | max | 1.3 | 1.6 | 1.9 | 2.2 | 2.6 | 3 | 4.24 | 4.24 | 5.54 | 6.69 | 7.79 | 9.09 | 10.29 | ||
min | 0.9 | 1.2 | 1.5 | 1.8 | 2.2 | 2.6 | 3.74 | 3.76 | 5.06 | 6.11 | 7.21 | 8.51 | 9.71 | |||
s | max | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 13 | 16 | 18 | 21 | 24 | ||
min | Grade A | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | ||
Grade B | 2.9 | 3.7 | 4.7 | 5.2 | 5.7 | 6.64 | 7.64 | 9.64 | 12.57 | 15.57 | 17.57 | 20.16 | 23.16 |
Screw Thread | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 | |||
P | Pitch | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | ||
b | L≤125 | 42 | 46 | 50 | 54 | 60 | 66 | / | / | / | / | / | / | / | ||
125<L≤200 | 48 | 52 | 56 | 60 | 66 | 72 | 78 | 84 | 90 | 96 | 102 | 108 | 116 | |||
L>200 | 61 | 65 | 69 | 73 | 79 | 85 | 91 | 97 | 103 | 109 | 115 | 121 | 129 | |||
ds | max | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 52 | ||
min | Grade A | 17.73 | 19.67 | 21.67 | 23.67 | / | / | / | / | / | / | / | / | / | ||
Grade B | 17.57 | 19.48 | 21.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 38.38 | 41.38 | 44.38 | 47.38 | 51.26 | |||
k | Grade A | max | 11.715 | 12.715 | 14.215 | 15.215 | / | / | / | / | / | / | / | / | / | |
min | 11.285 | 12.285 | 13.785 | 14.785 | / | / | / | / | / | / | / | / | / | |||
Grade B | max | 11.85 | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 | ||
min | 11.15 | 12.15 | 13.65 | 14.65 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 27.58 | |||
s | max | 27 | 30 | 34 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | ||
min | Grade A | 26.67 | 29.67 | 33.38 | 35.38 | / | / | / | / | / | / | / | / | / | ||
Grade B | 26.16 | 29.16 | 33 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 |
Screw Thread | M56 | M60 | M64 | M68 | M72 | M76 | M80 | M90 | M100 | M110 | M125 | M140 | M160 | |||
d | ||||||||||||||||
P | Pitch | 5.5 | 5.5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | ||
b | L≤125 | / | / | / | / | / | / | / | / | / | / | / | / | / | ||
125<L≤200 | / | / | / | 148 | 156 | 164 | 172 | 192 | / | / | / | / | / | |||
L>200 | 137 | 145 | 153 | 161 | 169 | 177 | 185 | 205 | 225 | 245 | 275 | 305 | 345 | |||
ds | max | 56 | 60 | 64 | 68 | 72 | 76 | 80 | 90 | 100 | 110 | 125 | 140 | 160 | ||
min | Grade A | / | / | / | / | / | / | / | / | / | / | / | / | / | ||
Grade B | 55.26 | 59.26 | 63.26 | 67.26 | 71.26 | / | / | / | / | / | / | / | / | |||
k | Grade A | max | / | / | / | / | / | / | / | / | / | / | / | / | / | |
min | / | / | / | / | / | / | / | / | / | / | / | / | / | |||
Grade B | max | 35.5 | 38.5 | 40.5 | 43.5 | 45.5 | 48.5 | 50.5 | 57.6 | 53.6 | 69.6 | 79.6 | 88.7 | 100.7 | ||
min | 34.5 | 37.5 | 39.5 | 42.5 | 44.5 | 47.5 | 49.5 | 56.4 | 62.4 | 68.4 | 78.4 | 87.3 | 99.3 | |||
s | max | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 130 | 145 | 155 | 180 | 200 | 230 | ||
min | Grade A | / | / | / | / | / | / | / | / | / | / | / | / | / | ||
Grade B | 82.8 | 87.8 | 92.8 | 97.8 | 102.8 | 107.5 | 117.5 | 127.5 | 142.5 | 152.5 | 177.5 | 195.4 | 225.4 |