螺纹底孔直径参考——公制细牙螺纹.doc

螺纹底孔直径参考——公制细牙螺纹
螺纹代号
钻头直径
ASP60C
Carbide
M24*1.5
22.5
—
M24*1.0
23.0
—
M25*2.0
23.0
—
M25*1.5
23.5
—
M25*1.0
24.0
—
M26*1.5
24.5
—
M27*2.0
25.0
—
M27*1.5
25.5
—
M27*1.0
26.0
—
M28*2.0
26.0
—
M28*1.5
26.5
—
M28*1.0
27.0
—
M30*3.0
27.0
—
M30*2.0
28.0
—
M30*1.5
28.5
—
M30*1.0
29.0
—
M32*2.0
30.0
—
M32*1.5
30.5
—
M33*3.0
30.0
—
M33*2.0
31.0
—
M33*1.5
31.5
—
M35*1.5
33.5
—
M36*3.0
33.0
—
M36*2.0
34.0
—
M36*1.5
34.5
—
M38*1.5
36.5
—
M39*3.0
36.0
—
M39*2.0
37.0
—
M39*1.5
37.5
—
M40*3.0
37.0
—
M40*2.0
38.0
—
M40*1.5
38.5
—
M42*4.0
38.0
—
M42*3.0
39.0
—
M42*2.0
40.0
—
M42*1.5
40.5
—
M45*4.0
41.0
—
M45*3.0
42.0
—
M45*2.0
43.0
—
M45*1.5
43.5
—
M48*4.0
44.0
—
M48*3.0
45.0
—
M48*2.0
46.0
—
M48*1.5
465
—
M50*3.0
47.0
—
M50*2.0
48.0
—
M50*1.5
48.5
—
—螺纹代号
钻头直径
ASP60C
Carbide
No.1-64UNC
1.55
—
No.2-56UNC
1.80
—
No.3-48UNC
2.10
—
No.4-40UNC
2.30
—
No.5-40UNC
2.60
—
No.6-32UNC
2.80
—
No.8-32UNC
3.40
—
No.10-24UNC
3.90
—
No.12-24UNC
4.50
—
1/4-20UNC
5.10
—
5/16-18UNC
6.60
—
3/8-16UNC
8.00
—
7/16-14UNC
9.40
—
1/2-13UNC
10.80
—
9/16-12UNC
1220
—
5/8-11UNC
13.60
—
3/4-10UNC
1650
—
7/8-9UNC
19.50
—
1-8UNC
22.20
—
11/8-7UNC
25.00
—

螺纹代号
钻头直径
ASP60C
Carbide
No.0-80UNF
1.25
—
No.1-72UNF
1.55
—
No.2-64UNF
185
—
No.3-56UNF
2.10
—
No.4-48UNF
2.40
—
No.5-44UNF
2.70
—
No.6-40UNF
2.90
—
No.8-36UNF
3.50
—
No.10-32UNF
4.10
—
No.12-28UNF
4.60
—
1/4-28UNF
5.50
—
5/16-24UNF
6.90
—
3/8-24UNF
8.50
—
7/16-20UNF
9.90
—
1/2-20UNF
11.50
—
9/16-18UNF
12.90
—
5/8-18UNF
14.50
—
3/4-16UNF
17
—
7/8-14UNF
20.50
—
1-12UNF
23.20
—