同纬度球面距离公式攻牙底孔参数(优推内容)

2020年11月6日发(作者：沈廷文)

攻牙底孔的使用参数表
一、螺紋下孔徑表
1、公制粗牙螺紋 JIS B 0209-1982(單位：mm)
螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑
最小直径 最大直径
M

1

× 0.25
0.75 0.78 (80%) 0.729 0.785
1.1 × 0.25
0.85 0.88 (80%) 0.829 0.885
1.2 × 0.25
0.95 0.98 (80%) 0.929 0.985
1.4 × 0.3
1.1 1.14 (80%) 1.075 1.142
1.6 × 0.35
1.25 1.32 (75%) 1.221 1.321
1.8
1.45 1.52 (75%) 1.421 1.521

× 0.35
2
× 0.4
1.6 1.65 (80%) 1.567 1.679
2.2 × 0.45
1.75 1.83 (75%) 1.713 1.838
2.5 × 0.45
2.1 2.13 (75%) 2.013 2.138
3

× 0.5
2.5 2.59 (75%) 2.459 2.599
3.5
2.9 3.01 (75%) 2.850 3.010

× 0.6
4
× 0.7
3.3 3.39 (80%) 3.242 3.422
4.5 × 0.75
3.8 3.85 (80%) 3.688 3.878
5

× 0.8
4.2 4.31 (80%) 4.134 4.334
6

× 1
5 5.13 (80%) 4.917 5.153
7

× 1
6 6.13 (80%) 5.917 6.153
8

× 1.25
6.8 6.85 (85%) 6.647 6.912
9

× 1.25
7.8 7.85 (85%) 7.647 7.912
10

× 1.5
8.5 8.62 (85%) 8.376 8.676
11

× 1.5
9.5 9.62 (85%) 9.376 9.676
12

× 1.75
10.3 10.40 (85%) 10.106 10.441
14

× 2
12 12.2 (85%) 11.835 12.210
16

× 2
14 14.2 (85%) 13.835 14.210
18

× 2.5
15.5 15.7 (85%) 15.294 15.744
20

× 2.5
17.5 17.7 (85%) 17.294 17.744
22

× 2.5
19.5 19.2 (85%) 19.294 19.744
24

× 3
21 21.2 (85%) 20.752 21.252
27

× 3
24 24.2 (85%) 23.752 24.252
30

× 3.5
26.5 26.6 (90%) 26.211 26.771
33

× 3.5
29.5 29.6 (90%) 29.211 29.771
36

× 4
32 32.1 (90%) 31.670 32.270
39 × 4
35 35.1 (90%) 34.670 35.270
42 × 4.5
37.5 37.6 (90%) 37.129 37.799
45 × 4.5
40.5 40.6 (90%) 40.129 40.799
学习资料#
1
48 × 5
43 43.1 (90%) 42.587 43.297

註(1)M1.4以下等級：5H、M1.6以上等級：6H (2)基於JIS B 0209-1982標準


2、公制細牙螺紋-01 JIS B 0211-1982(單位：mm)
螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑
最小直径 最大直径
M

2.5 × 0.35
2.2 2.22 (75%) 2.121 2.221
3

× 0.35
2.7 2.72 (75%) 2.621 2.721
3.5 × 0.35
3.2 3.22 (75%) 3.121 3.221
4

× 0.5
3.5 3.59 (75%) 3.459 3.599
4.5 × 0.5
4 4.09 (75%) 3.959 4.099
5

× 0.5
4.5 4.59 (75%) 4.459 4.599
5.5 × 0.5
5 5.09 (75%) 4.959 5.099
6

× 0.75
5.3 5.35 (80%) 5.188 5.378
7

× 0.75
6.3 6.35 (80%) 6.188 6.378
8

× 1
7 7.13 (80%) 6.917 7.153
8

× 0.75
7.3 7.35 (80%) 7.188 7.378
9

× 1
8 8.13 (80%) 7.917 8.153
9

× 0.75
8.3 8.35 (80%) 8.188 8.378
10

× 1.25
8.8 8.85 (85%) 8.647 8.912
10

× 1
9 9.13 (80%) 8.917 9.153
10

× 0.75
9.3 9.35 (80%) 9.188 9.378
11

× 1
10 10.13 (80%) 9.917 10.153
11


× 0.75
10.3 10.35 (80%) 10.188 10.378
12
× 1.5
10.5 10.62 (85%) 10.376 10.676
12

× 1.25
10.8 10.85 (85%) 10.647 10.912
12


× 1
11 11.13 (80%) 10.917 11.153
14

× 1.5
12.5 12.62 (85%) 12.376 12.676
14
× 1
13 13.13 (80%) 12.917 13.153
15

× 1.5
13.5 13.62 (85%) 13.376 13.676
15

× 1
14 14.13 (80%) 13.917 14.153
16

× 1.5
14.5 14.62 (85%) 14.376 14.676
16


× 1
15 15.13 (80%) 14.917 15.153
17

× 1.5
15.5 15.62 (85%) 15.376 15.676
17
× 1
16 16.13 (80%) 15.917 16.153
18

× 2
16 16.2 (85%) 15.835 16.210
学习资料#

2