THREADING
TOOLS
S O M T A P 1 2 C A T A L O G U E
146
Parallel Pipe Taps
BSP
BS 949
1982
PART 3
ISO
2284
G
SERIES
STRAIGHT
FLUTE
HSS
Gun Nose Short Machine Taps
HSSE
V3
GUN
NOSE
SPIRAL
POINT
571
Suited Materials
Properties
Code
28
19
19
14
14
14
14
11
11
11
11
11
11
11
11
59
67
75
87
91
96
102
109
119
125
132
140
142
153
164
15
19
21
26
26
28
29
33
36
37
39
41
42
45
48
8
10
12.5
16
18
20
22.4
25
31.5
35.5
35.5
40
40
45
50
9.728
13.157
16.662
20.955
22.911
26.441
30.201
33.249
41.910
47.803
53.746
59.614
65.710
75.184
87.884
1/8
1/4
3/8
1/2
5/8
3/4
7/8
1"
1.1/4
1.1/2
1.3/4
2"
2.1/4
2.1/2
3"
6.3
8
10
12.5
14
16
18
20
25
28
28
31.5
31.5
35.5
40
5710323
5710643
5710953
5711273
5711593
5711913
5712223
5712543
5713173
5713813
5714453
5715083
5715723
5716353
5717623
5710321
5710641
5710951
5711271
5711591
5711911
5712221
5712541
5713171
5713811
5714451
5715081
5715721
5716351
5717621
5710320
5710640
5710950
5711270
5711590
5711910
5712220
5712540
5713170
5713810
5714450
5715080
5715720
5716350
5717620
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
Size
l
2
l
1
d
1
a
Code
Tap Set
Taper Bottom
No. of
Flutes
TPI
Nom.
Dia.
BSP
BS 949
1982
PART 3
ISO
2284
G
SERIES
573
Suited Materials
Properties
Code
28
19
19
14
14
59
67
75
87
96
15
19
21
26
28
8
10
12.5
16
20
6.3
8
10
12.5
16
9.728
13.157
16.662
20.955
26.441
1/8
1/4
3/8
1/2
3/4
5730320
5730640
5730950
5731270
5731910
3
3
4
4
4
I
2
Size
TPI
Code
d
1
I
1
a
No. of
Flutes
Nominal
Dia.
GENERAL
GENERAL
