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上海吉都国际贸易有限公司
热线：021-3765 2176
info@guido-tools.com
上海市松江区茸梅路345号3栋
UNS - Unified Special Thread Series, which is used for special purposes.
Nominal
Major
Major
Tapping
TPI
Pitch
10 - 28 UNS
0.1900
4.826
3.95
28
0.907
10 - 36 UNS
0.1900
4.826
4.15
36
0.706
10 - 40 UNS
0.1900
4.826
4.20
40
0.635
10 - 48 UNS
0.1900
4.826
4.35
48
0.529
10 - 56 UNS
0.1900
4.826
4.39
56
0.454
12 - 36 UNS
0.2160
5.486
4.80
36
0.706
12 - 40 UNS
0.2160
5.486
4.90
40
0.635
12 - 48 UNS
0.2160
5.486
4.98
48
0.529
12 - 56 UNS
0.2160
5.486
5.05
56
0.454
1/4" - 24 UNS
0.2500
6.350
5.35
24
1.058
1/4" - 27 UNS
0.2500
6.350
5.45
27
0.941
1/4" - 36 UNS
0.2500
6.350
5.70
36
0.706
1/4" - 40 UNS
0.2500
6.350
5.75
40
0.635
1/4" - 48 UNS
0.2500
6.350
5.85
48
0.529
1/4" - 56 UNS
0.2500
6.350
5.95
56
0.454
5/16" - 27 UNS
0.3125
7.938
7.10
27
0.941
5/16" - 36 UNS
0.3125
7.938
7.25
36
0.706
5/16" - 40 UNS
0.3125
7.938
7.40
40
0.635
5/16" - 48 UNS
0.3125
7.938
7.50
48
0.529
3/8" - 18 UNS
0.3750
9.525
8.20
18
1.411
3/8" - 27 UNS
0.3750
9.525
8.70
27
0.941
3/8" - 36 UNS
0.3750
9.525
8.90
36
0.706
3/8" - 40 UNS
0.3750
9.525
9.00
40
0.635
0,390" - 27 UNS
0.3900
9.906
9.00
27
0.941
7/16" - 18 UNS
0.4375
11.112
9.75
18
1.411
7/16" - 24 UNS
0.4375
11.112
10.10
24
1.058
7/16" - 27 UNS
0.4375
11.112
10.20
27
0.941
1/2" - 12 UNS
0.5000
12.700
10.75
12
2.117
1/2" - 14 UNS
0.5000
12.700
11.00
14
1.814
1/2" - 18 UNS
0.5000
12.700
11.40
18
1.411
1/2" - 24 UNS
0.5000
12.700
11.70
24
1.058
1/2" - 27 UNS
0.5000
12.700
11.85
27
0.941
9/16" - 14 UNS
0.5625
14.288
12.60
14
1.814
9/16" - 27 UNS
0.5625
14.288
13.40
27
0.941
5/8" - 14 UNS
0.6250
15.875
14.20
14
1.814
5/8" - 27 UNS
0.6250
15.875
15.00
27
0.941
3/4" - 14 UNS
0.7500
19.050
17.40
14
1.814
3/4" - 18 UNS
0.7500
19.050
17.75
18
1.411
3/4" - 24 UNS
0.7500
19.050
18.10
24
1.058
3/4" - 27 UNS
0.7500
19.050
18.20
27
0.941
7/8" - 10 UNS
0.8750
22.225
19.75
10
2.540
7/8" - 18 UNS
0.8750
22.225
21.00
18
1.411
7/8" - 24 UNS
0.8750
22.225
21.20
24
1.058
7/8" - 27 UNS
0.8750
22.225
21.40
27
0.941
1" - 10 UNS
1.0000
25.400
23.00
10
2.540
1" - 14 UNS
1.0000
25.400
23.75
14
1.814
1" - 18 UNS
1.0000
25.400
24.25
18
1.411
1" - 24 UNS
1.0000
25.400
24.50
24
1.058
1" - 27 UNS
1.0000
25.400
24.50
27
0.941
1 1/8" - 10 UNS
1.1250
28.575
26.25
10
2.540
1 1/8" - 14 UNS
1.1250
28.575
27.00
14
1.814
1 1/8" - 24 UNS
1.1250
28.575
27.75
24
1.058
1 1/4" - 10 UNS
1.2500
31.750
29.50
10
2.540
1 1/4" - 14 UNS
1.2500
31.750
30.00
14
1.814
1 1/4" - 24 UNS
1.2500
31.750
30.75
24
1.058
1 3/8" - 10 UNS
1.3750
34.925
32.60
10
2.540
1 3/8" - 14 UNS
1.3750
34.925
33.30
14
1.814
1 1/2" - 10 UNS
1.5000
38.100
35.70
10
2.540
1 1/2" - 14 UNS
1.5000
38.100
36.50
14
1.814
1 1/2" - 24 UNS
1.5000
38.100
37.30
24
1.058
1 5/8" - 10 UNS
1.6250
41.275
39.00
10
2.540
1 5/8" - 14 UNS
1.6250
41.275
39.50
14
1.814
1 5/8" - 24 UNS
1.6250
41.275
40.35
24
1.058
1 3/4" - 10 UNS
1.7500
44.450
42.00
10
2.540
1 3/4" - 14 UNS
1.7500
44.450
42.85
14
1.814
1 3/4" - 18 UNS
1.7500
44.450
43.25
18
1.411
1 7/8" - 10 UNS
1.8750
47.625
45.30
10
2.540
1 7/8" - 14 UNS
1.8750
47.625
46.00
14
1.814
1 7/8" - 18 UNS
1.8750
47.625
46.35
18
1.411
2" - 10 UNS
2.0000
50.800
48.40
10
2.540
2" - 14 UNS
2.0000
50.800
49.25
14
1.814
2" - 18 UNS
2.0000
50.800
49.50
18
1.411
2 1/16" - 16 UNS
2.0625
52.387
51.00
16
1.587
2 3/16" - 16 UNS
2.1875
55.563
54.10
16
1.587
2 1/4" - 10 UNS
2.2500
57.150
54.75
10
2.540
2 1/4" - 14 UNS
2.2500
57.150
55.50
14
1.814
2 1/4" - 18 UNS
2.2500
57.150
55.75
18
1.411
2 5/16" - 16 UNS
2.3125
58.737
57.30
16
1.587
2 7/16" - 16 UNS
2.4375
61.912
60.50
16
1.587
2 1/2" - 10 UNS
2.5000
63.500
61.20
10
2.540
2 1/2" - 14 UNS
2.5000
63.500
61.75
14
1.814
2 1/2" - 18 UNS
2.5000
63.500
62.30
18
1.411
2 3/4" - 10 UNS
2.7500
69.850
67.50
10
2.540
2 3/4" - 14 UNS
2.7500
69.850
68.25
14
1.814
2 3/4" - 18 UNS
2.7500
69.850
68.50
18
1.411
3" - 10 UNS
3.0000
76.200
73.80
10
2.540
3" - 14 UNS
3.0000
76.200
74.50
14
1.814
3" - 18 UNS
3.0000
76.200
75.00
18
1.411
3 1/4" - 10 UNS
3.2500
82.550
80.25
10
2.540
3 1/4" - 14 UNS
3.2500
82.550
81.00
14
1.814
3 1/4" - 18 UNS
3.2500
82.550
81.25
18
1.411
3 1/2" - 10 UNS
3.5000
88.900
86.55
10
2.540
3 1/2" - 14 UNS
3.5000
88.900
87.25
14
1.814
3 1/2" - 18 UNS
3.5000
88.900
87.60
18
1.411
3 3/4" - 10 UNS
3.7500
95.250
93.00
10
2.540
3 3/4" - 14 UNS
3.7500
95.250
93.60
14
1.814
3 3/4" - 18 UNS
3.7500
95.250
94.00
18
1.411
4" - 10 UNS
4.0000
101.600
99.30
10
2.540
4" - 14 UNS
4.0000
101.600
100.00
14
1.814
4 1/4" - 10 UNS
3.2500
107.950
105.60
10
2.540
4 1/4" - 14 UNS
4.2500
107.950
106.30
14
1.814
4 1/2" - 10 UNS
4.5000
114.300
112.00
10
2.540
4 1/2" - 14 UNS
4.5000
114.300
112.65
14
1.814
4 3/4" - 10 UNS
4.7500
120.650
118.35
10
2.540
4 3/4" - 14 UNS
4.7500
120.650
119.00
14
1.814
5" - 10 UNS
5.0000
127.000
124.70
10
2.540
5" - 14 UNS
5.0000
127.000
125.35
14
1.814
5 1/4" - 10 UNS
5.2500
133.350
131.00
10
2.540
5 1/4" - 14 UNS
5.2500
133.350
131.70
14
1.814
5 1/2" - 10 UNS
5.5000
139.700
137.40
10
2.540
5 1/2" - 14 UNS
5.5000
139.700
138.00
14
1.814
5 3/4" - 10 UNS
5.7500
146.050
143.75
10
2.540
5 3/4" - 14 UNS
5.7500
146.050
144.40
14
1.814
6" - 10 UNS
6.0000
152.400
150.00
10
2.540
6" - 14 UNS
6.0000
152.400
150.75
14
1.814
The flank angle is 60°.
Diameter
Diameter
Inch
Diameter
mm
Drill Size
mm
mm
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