9 半圆头方颈螺栓GB/T 12—1988标准
半圆头方颈螺栓GB12—1988标准
半圆头方颈螺栓的尺寸规格和质量见表4.1-14和表4.1-15。
表4.1-14 半圆头方颈螺栓的尺寸规格(mm)
用途:
用于铁木结构联接,如汽车车身、纺织机械、救生艇的联接等
螺纹规格d (8 g) | M6 | M8 | M10 | M12 | (M14) | M16 | M20 | |
b(参考) | l≤125 | 18 | 22 | 26 | 30 | 34 | 38 | 46 |
125< l≤200 | — | 28 | 32 | 36 | 40 | 44 | 52 | |
dK | max | 13.1 | 17.1 | 21.3 | 25.3 | 29.3 | 33.6 | 41.6 |
K1 | max | 4.4 | 5.4 | 6.4 | 8.45 | 9.45 | 10.45 | 12.55 |
K | max | 4.08 | 5.28 | 6.48 | 8.9 | 9.9 | 10.9 | 13.1 |
Ss | max | 6.3 | 8.36 | 10.36 | 12.43 | 14.43 | 16.43 | 20.52 |
R | 7 | 9 | 11 | 13 | 15 | 18 | 22 | |
X | max | 2.5 | 3.2 | 3.8 | 4.3 | 5 | 6.3 | |
l①长度范围 | 16-60 | 16-80 | 25-100 | 30-120 | 40-140 | 45-160 | 6 -200 |
注:尽可能不采用括号内的规格。
①公称长度系列为20-50(5进级)、(55)、60、(65)、70〜160(10进级)、180-300 mm(20 mm进级)。
表4.1-15 半圆头方颈螺栓的质量(kg)
每1000件钢制品的大约质量 | |||||||||||||
l | G | l | G | l | G | l | G | l | G | l | G | l | G |
M6 | M8 | M10 | M12 | (M14) | M16 | M20 | |||||||
16 | 4.57 | 16 | 9.3 | 25 | 20.74 | 30 | 38.78 | 40 | 65.05 | 45 | 98 | 60 | 190.8 |
20 | 5.26 | 20 | 10.55 | 30 | 23.2 | 35 | 42.34 | 45 | 69.93 | 50 | 104.5 | (65) | 201.1 |
25 | 6.12 | 25 | 12.1 | 35 | 25.65 | 40 | 45.91 | 50 | 74.8 | (55) | 111.1 | 70 | 211.3 |
30 | 6.97 | 30 | 13.66 | 40 | 28.11 | 45 | 49.47 | (55) | 79.68 | 60 | 117.6 | 80 | 231.8 |
35 | 7.83 | 35 | 15.21 | 45 | 30.57 | 50 | 53.03 | 60 | 84.55 | (65) | 124.2 | 90 | 252.3 |
40 | 8.69 | 40 | 16.77 | 50 | 33.02 | (55) | 56.59 | (65) | 89.42 | 70 | 130.7 | 100 | 272.7 |
45 | 9.54 | 45 | 18.32 | (55) | 35.48 | 60 | 60.15 | 70 | 94.3 | 80 | 143.8 | 110 | 293.7 |
50 | 10.4 | 50 | 19.88 | 60 | 37.93 | (65) | 63.72 | 80 | 104.1 | 90 | 156.9 | 120 | 313.7 |
(55) | 11.26 | (55) | 21.43 | 65 | 40.39 | 70 | 67.28 | 90 | 113.8 | 100 | 170 | 130 | 334.2 |
60 | 12.12 | 60 | 22.99 | 70 | 42.84 | 80 | 74.4 | 100 | 123.6 | 110 | 183.1 | 140 | 354.7 |
(65) | 24.54 | 80 | 47.76 | 90 | 81.53 | 110 | 133.3 | 120 | 196.1 | 150 | 375.1 | ||
70 | 26.1 | 90 | 52.67 | 100 | 88.65 | 120 | 143 | 130 | 209.2 | 160 | 395.6 | ||
80 | 29.21 | 100 | 57.58 | 110 | 95.78 | 130 | 152.8 | 140 | 222.3 | 180 | 436.6 | ||
120 | 102.9 | 140 | 162.5 | 150 | 235.4 | 200 | 477.5 | ||||||
160 | 248.5 |
注:表列规格为商品规格。尽可能不采用括号内的规格。