Historical & Obsolete
S. J. Thread
Threads that have been withdrawn or superseded. Listed for repair, restoration and reverse-engineering of older equipment.
- Sizes listed
- 29
- Range
- 6.0 – 80.0
| Screw Diameter mm | Pitch mm | Tapping Drill Size mm | Nut Clearance Diameter mm | Wrench Size mm |
|---|---|---|---|---|
| 6.0 | 1.00 | 4.60 | 4.70 | 12 |
| 7.0 | 1.00 | 5.60 | 5.70 | 13 |
| 8.0 | 1.25 | 6.25 | 6.38 | 15 |
| 9.0 | 1.25 | 7.25 | 7.38 | 16 |
| 10.0 | 1.50 | 7.90 | 8.05 | 18 |
| 11.0 | 1.50 | 8.90 | 9.05 | 19 |
| 12.0 | 1.75 | 9.55 | 9.73 | 21 |
| 14.0 | 2.00 | 11.20 | 11.40 | 23 |
| 16.0 | 2.00 | 13.20 | 13.40 | 26 |
| 18.0 | 2.50 | 14.50 | 14.75 | 29 |
| 20.0 | 2.50 | 16.50 | 16.75 | 32 |
| 22.0 | 2.50 | 18.50 | 18.75 | 35 |
| 24.0 | 3.00 | 19.80 | 20.10 | 38 |
| 27.0 | 3.00 | 22.80 | 23.10 | 42 |
| 30.0 | 3.50 | 25.10 | 25.45 | 46 |
| 33.0 | 3.50 | 28.10 | 28.45 | 50 |
| 36.0 | 4.00 | 30.40 | 30.80 | 54 |
| 39.0 | 4.00 | 33.40 | 33.80 | 58 |
| 42.0 | 4.50 | 35.70 | 36.15 | 63 |
| 45.0 | 4.50 | 38.70 | 39.15 | 67 |
| 48.0 | 5.00 | 41.00 | 41.50 | 71 |
| 52.0 | 5.00 | 45.00 | 45.50 | 77 |
| 56.0 | 5.50 | 48.30 | 48.85 | 82 |
| 60.0 | 5.50 | 52.30 | 52.85 | 88 |
| 64.0 | 6.00 | 55.60 | 56.20 | 94 |
| 68.0 | 6.00 | 59.60 | 60.20 | 100 |
| 72.0 | 6.50 | 62.90 | 63.55 | 105 |
| 76.0 | 6.50 | 66.90 | 67.55 | 110 |
| 80.0 | 7.00 | 70.20 | 70.90 | 116 |
Reference values only. Verify against the current edition of the governing standard before use in production drawings or manufacturing. Provided by Micro Components as a free engineering resource.