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155
j.B. Smith oil country products
Malleable Iron
Cast Iron
Small Steel
Fittings
Pipe Nipples &
Pipe Couplings
Forged Steel
Fittings & Unions
Anvilets
Catawissa
J.B. Smith Products
Carton Information
Current API Thread Standards
Size
O.D.
Pipe
Tubing & Casing
NPS
DN
in
mm
3
⁄
4
20
1.050
27
14
–
3
⁄
4
EUE
20
1.050
27
–
10 Rd.
1
25
1.315
33
11
1
⁄
2
10 Rd.
1 EUE
25
1.315
33
–
10 Rd.
1
1
⁄
4
32
1.660
42
11
1
⁄
2
10 Rd.
1
1
⁄
4
EUE
32
1.660
42
–
10 Rd.
1
1
⁄
2
40
1.900
48
11
1
⁄
2
10 Rd.
1
1
⁄
2
EUE
40
1.900
48
–
10 Rd.
2
50
2
3
⁄
8
60
11
1
⁄
2
10 Rd.
2 EUE
50
2
3
⁄
8
60
–
8 Rd.
2
1
⁄
2
65
2
7
⁄
8
73
8V
10 Rd.
2
1
⁄
2
EUE
65
2
7
⁄
8
73
–
8 Rd.
3
80
3
1
⁄
2
89
8V
10 Rd.
3 EUE
80
3
1
⁄
2
89
–
8 Rd.
31⁄2
90
4
102
8V
8 Rd.
3
1
⁄
2
EUE
90
4
102
8V
8 Rd.
4
100
4
1
⁄
2
114
8V
8 Rd.
4 EUE
100
4
1
⁄
2
114
–
8 Rd.
–
–
5
127
–
8 Rd.
–
–
5
1
⁄
2
140
–
8 Rd.
5
125
5
9
⁄
16
141
8V
–
–
–
6
152
–
8 Rd.
6
150
6
5
⁄
8
168
8V
8 Rd.
–
–
7
178
–
8 Rd.
–
–
7
5
⁄
8
194
–
8 Rd.
8
200
8
5
⁄
8
219
8V
8 Rd.
–
–
9
5
⁄
8
244
–
8 Rd.
10
250
10
3
⁄
4
273
8V
8 Rd.
–
–
11
3
⁄
4
298
–
8 Rd.
12
300
12
3
⁄
4
324
8V
–
–
–
13
3
⁄
8
340
–
8 Rd.
–
–
14
356
8V
–
–
–
16
406
8V
8 Rd.
–
–
18
457
8V
–
–
–
20
508
8V
8 Rd.
Oil Country Fittings
Current API Thread Standards