UNC-Gewinde ANSI B1.1
UNC - Unified Coarse Thread Series, Amerikanisches Einheits-Grobgewinde. Die alte Bezeichnung NC ist vergleichbar mit dem Metrischen-Gewinde. Die neue Bezeichnung UNC ist vergleichbar dem ISO-Metrischen-Gewinde. NC- und UNC-Gewinde sind auswechselbar, entsprechend dem Metrischen und ISO-Metrischen-Gewinde.
| Gewinde- kennung |
Durchmesser Inch |
Durchmesser aussen mm |
Durchmesser Kernloch mm |
Gänge je Inch |
Steigung mm |
| N 1 - 64 UNC | 0,073 | 1,854 | 1,50 | 64 | 0,397 |
| N 2 - 56 UNC | 0,086 | 2,184 | 1,78 | 56 | 0,453 |
| N 3 - 48 UNC | 0,099 | 2,515 | 2,05 | 48 | 0,529 |
| N 4 - 40 UNC | 0,112 | 2,845 | 2,27 | 40 | 0,635 |
| N 5 - 40 UNC | 0,125 | 3,175 | 2,59 | 40 | 0,635 |
| N 6 - 32 UNC | 0,138 | 3,505 | 2,77 | 32 | 0,794 |
| N 8 - 32 UNC | 0,164 | 4,166 | 3,42 | 32 | 0,794 |
| N 10 - 24 UNC | 0,190 | 4,826 | 3,82 | 24 | 1,058 |
| N 12 - 24 UNC | 0,216 | 5,486 | 4,47 | 24 | 1,058 |
| 1/4" - 20 UNC | 0,250 | 6,350 | 5,11 | 20 | 1,270 |
| 5/16" - 18 UNC | 0,313 | 7,938 | 6,55 | 18 | 1,411 |
| 3/8" - 16 UNC | 0,375 | 9,525 | 7,95 | 16 | 1,587 |
| 7/16" - 14 UNC | 0,438 | 11,112 | 9,30 | 14 | 1,814 |
| 1/2" - 13 UNC | 0,500 | 12,700 | 10,73 | 13 | 1,954 |
| 9/16" - 12 UNC | 0,563 | 14,288 | 12,15 | 12 | 2,117 |
| 5/8" - 11 UNC | 0,625 | 15,875 | 13,53 | 11 | 2,309 |
| 3/4" - 10 UNC | 0,750 | 19,050 | 16,46 | 10 | 2,540 |
| 7/8" - 9 UNC | 0,875 | 22,225 | 19,34 | 9 | 2,822 |
| 1" - 8 UNC | 1,000 | 25,400 | 22,15 | 8 | 3,175 |
| 1 1/8" - 7 UNC | 1,125 | 28,575 | 24,87 | 7 | 3,628 |
| 1 1/4" - 7 UNC | 1,250 | 31,750 | 28,85 | 7 | 3,628 |
| 1 3/8" - 6 UNC | 1,375 | 34,925 | 30,60 | 6 | 4,233 |
| 1 1/2" - 6 UNC | 1,500 | 38,100 | 33,70 | 6 | 4,233 |
| 1 3/4" - 5 UNC | 1,750 | 44,450 | 39,26 | 5 | 5,080 |
| 2" - 4 1/2 UNC | 2,000 | 50,800 | 45,03 | 4,5 | 5,644 |
| 2 1/4" - 4 1/2 UNC | 2,250 | 57,150 | 51,38 | 4,5 | 5,644 |
| 2 1/2" - 4 UNC | 2,500 | 63,500 | 57,00 | 4 | 6,350 |
| 2 3/4" - 4 UNC | 2,750 | 69,850 | 63,36 | 4 | 6,350 |
| 3" - 4 UNC | 3,000 | 76,200 | 69,71 | 4 | 6,350 |
| 3 1/4" - 4 UNC | 3,250 | 82,550 | 76,06 | 4 | 6,350 |
| 3 1/2" - 4 UNC | 3,500 | 88,900 | 82,41 | 4 | 6,350 |
| 3 3/4" - 4 UNC | 3,750 | 95,250 | 88,76 | 4 | 6,350 |
| 4" - 4 UNC | 4,000 | 101,600 | 95,11 | 4 | 6,350 |
