公制牙M |
牙规 公制M (Metric) |
螺距 Pitch P mm |
螺纹外径 Outside Diameter |
螺纹小径 Minor Diameter |
下孔径 Recommended Drill Size Φmm |
机板孔径 Panel Mounting Hole Φmm |
|
M6 |
1 |
6 |
4.917 |
5.1 |
6-6.3 |
M8 |
1.25 |
8 |
6.647 |
6.8 |
8-8.3 |
M10 |
1.5 |
10 |
8.376 |
8.6 |
10-10.3 |
M12 |
1.5 |
12 |
10.376 |
10.6 |
12-12.3 |
M16 |
1.5 |
16 |
14.376 |
14.6 |
16-16.3 |
M20 |
1.5 |
20 |
18.376 |
18.6 |
20-20.3 |
M25 |
1.5 |
25 |
23.376 |
23.6 |
25-25.4 |
M32 |
1.5 |
32 |
30.376 |
30.6 |
32-32.4 |
M40 |
1.5 |
40 |
38.376 |
38.6 |
40-40.4 |
M50 |
1.5 |
50 |
48.376 |
48.6 |
50-50.4 |
M63 |
1.5 |
63 |
61.376 |
61.6 |
63-63.4 |
M75 |
1.5 |
75 |
73.376 |
73.6 |
75-75.6 |
M75 |
2 |
75 |
72.835 |
73.1 |
75-75.6 |
M90 |
2 |
90 |
87.835 |
88.1 |
90-91 |
M100 |
2 |
100 |
97.835 |
98.1 |
100-101 |
德制牙PG |
牙规 德制PG
|
螺距 Pitch P mm |
螺纹外径 Outside Diameter |
螺纹小径 Minor Diameter |
下孔径 Recommended Drill Size Φmm |
机板孔径 Panel Mounting Hole Φmm |
|
PG7 |
1.27 |
12.5 |
11.28 |
11.4 |
12.5-12.8 |
PG9 |
1.41 |
15.2 |
13.86 |
14 |
15.2-15.5 |
PG11 |
1.41 |
18.6 |
17.26 |
17.4 |
18.6-18.9 |
PG13.5 |
1.41 |
20.4 |
19.06 |
19.2 |
20.4-20.7 |
PG16 |
1.41 |
22.5 |
21.16 |
21.3 |
22.5-22.8 |
PG21 |
1.588 |
28.3 |
26.76 |
27 |
28.3-28.7 |
PG29 |
1.588 |
37 |
35.48 |
35.7 |
37-37.4 |
PG36 |
1.588 |
47 |
45.48 |
45.7 |
47-47.4 |
PG42 |
1.588 |
54 |
52.48 |
52.7 |
54-54.4 |
PG48 |
1.588 |
59.3 |
57.78 |
58 |
59.3-59.7 |
英制牙G |
牙规 英制G
|
螺距 Pitch P mm |
螺纹外径 Outside Diameter |
螺纹小径 Minor Diameter |
下孔径 Recommended Drill Size Φmm |
机板孔径 Panel Mounting Hole Φmm |
|
G1/4 |
1.337 |
13.175 |
11.445 |
11.8 |
13.2-13.4 |
G3/8 |
1.337 |
16.662 |
14.95 |
15.3 |
16.7-16.9 |
G1/2 |
1.814 |
20.955 |
18.631 |
19 |
21-21.2 |
G3/4 |
1.814 |
26.441 |
24.117 |
24.5 |
26.5-26.8 |
G1 |
2.309 |
33.249 |
30.291 |
30.8 |
33.3-33.6 |
G1-1/4 |
2.309 |
41.91 |
38.952 |
39.5 |
42-42.3 |
G1-1/2 |
2.309 |
47.803 |
44.845 |
45.3 |
48-48.4 |
G2 |
2.309 |
59.614 |
56.656 |
57 |
60-60.4 |
G2-1/2 |
2.309 |
75.184 |
72.226 |
72.6 |
75.2-75.6 |
G3 |
2.309 |
87.884 |
84.926 |
85.3 |
88-89 |
美制牙 NPT |
牙规 美制牙 NPT
|
螺距 Pitch P mm |
螺纹外径 Outside Diameter |
下孔径 Recommended Drill Size Φmm |
备注: 下孔径:表示面板攻牙前预先钻的孔径,完成后再使用攻牙器攻牙。 机板孔径:适用于不攻牙的面板开孔口径,纯粹利用固定头螺母固定 |
|
NPT3/8 |
1.411 |
17.055 |
14.5 |
NPT1/2 |
1.814 |
21.223 |
17.8 |
NPT3/4 |
1.814 |
26.568 |
23 |
NPT1 |
2.208 |
33.227 |
29 |
NPT1-1/4 |
2.208 |
41.984 |
38 |