Table for quick identification of female threads
|
Internal ∅ measurement
mm
|
Female thread which matching
( Type of seal )
|
Internal ∅ measurement
mm
|
Female thread which matching
( Type of seal )
|
| 6,78 ÷ 7,04 |
/ 6” 24 UNF (JIC) |
27,9 |
/8” 14 BSPP |
| 8,5 |
/8” 27 NPTF |
28,0 |
M 30 x 2 |
| 8,57 |
/8” – 28 BSPT |
28,5 |
M 30 x 1,5 |
| 8,6 |
/8” 28 BSPP |
29,2 |
” 11,5 NPTF |
| 8,38 ÷ 8,64 |
3/8” 24 UNF (JIC) |
29,45 ÷ 29,92 |
/4” 12 UN (SAE 45°) |
| 9,73 ÷ 10,03 |
/ 6”- 20 UNF (JIC) |
30,3 |
” 11 BSPP o BSPT |
| 10,5 |
M 12 x 1,5 |
31,04 ÷ 31,50 |
/ 6” 12UN (JIC) |
| 11 |
M 12 x 1 |
31,5 |
M 33 x 1,5 |
| 11,1 |
/4 19 BSPT |
32,64 ÷ 33,1 |
3/8” 12 UN (SAE45°) |
| 11,33 ÷ 11,61 |
/ ” – 20 UNF (JIC) |
34 |
M 36 x 2 |
| 11,5 |
/4 19 BSPP |
34.21 ÷ 34.67 |
/ 6” 12UN (ORFS) |
| 11,5 |
/4 18 NPTF |
34,5 |
M 36 x 1,5 |
| 12,5 |
M 14 x 1,5 |
35 |
/8” 11 BSPP |
| 12,75 ÷ 13,08 |
/ 6” 8 S) |
37,5 |
M 39 x 1,5 |
| 14,35 ÷ 14,68 |
/8” 18 UNF (SAE 45°) |
37,9 |
/4” 11,5 NPTF |
| 14, 5 |
M 16 x 1,5 |
38,99 ÷ 40,18 |
/8” 12 UN (JIC) |
| 14,5 |
3/8” 18 NPTF |
39 |
/4” 11 BSPP o BSPT |
| 15 |
3/8” 19 BSPP o BSPT |
39,9 |
M 42 x2 |
| 15,75 ÷ 16,10 |
/ 6” 16 UNF (ORFS) |
40,5 |
M 42 x 1,5 |
| 16,5 |
M18 x 1,5 |
40.56 ÷ 41.02 |
/ 6” 12UN (ORFS) |
| 17,32 ÷ 17,96 |
3/4 16 UNF (JIC) |
42,9 |
M 45 x 2 |
| 18 |
/ 14 NPTF |
43,5 |
M 45 x 1,5 |
| 18,4 |
M 20 x 1,5 |
43,5 |
/ ” 11,5 NPTF |
| 18,6 |
/ 14 BSPP o BSPT |
44,8 |
/ ” 11 BSPP o BSPT |
| 18,92 ÷ 19,28 |
3/ 6” 16 UNF (ORFS) |
45,35 ÷ 45,80 |
/8”-12 UN (JIC) |
| 20,27 ÷ 20,68 |
/8” 14 UNF (JIC) |
48,51 ÷ 48,97 |
” – 12 UNF (ORFS) |
| 20,5 |
M 22 x 1,5 |
49,9 |
M 52 x 2 |
| 20,6 |
/8” 14 BSPP |
50,5 |
M 52 x 1,5 |
| 22,5 |
M 24 x 1,5 |
50,8 |
3/4” 11BSPP |
| 23,2 |
3/4 14 NPTF |
55 |
M 58 x 2 |
| 23.44 ÷ 23.83 |
” – 14 UNS (ORFS) |
56 |
” 11,5 NPTF |
| 24,1 |
3/4 14 BSPP o BSPT |
56,7 |
” 11 BSPP o BSPT |
| 24,69 ÷ 25,15 |
/ 6” 12UNF (JIC) |
61,21 ÷ 61,67 |
/ ” 12 UN (JIC) |
| 25,5 |
M 27 x 1,5 |
72,6 |
/ ” 11 BSPP |
| 27,86 ÷ 28,32 |
3/ 6” 12 UN (JIC-ORFS) |
85,4 |
3”-11 BSPP |
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