Eine Auflistung internationaler Gewindenormen

20-UN: Unified Thread Series ist ein Feingewinde mit konstanter Steigung, das bei speziellen Zwecken Verwendung findet.
Der Flankenwinkel beträgt 60°.

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Gewinde-
kennung
Außendurchmesser
Inch
Außendurchmesser
mm
Kernlochdurchmesser
mm
Gänge
je Inch
Steigung
mm
5/16" - 20-UN0,31257,93806,700201,270
3/8" - 20-UN0,37509,52508,300201,270
9/16" - 20-UN0,562514,28813,100201,270
5/8" - 20-UN0,625015,87514,670201,270
11/16" - 20-UN0,687517,46216,250201,270
1 1/16" - 20-UN1,062526,98725,800201,270
1 1/8" - 20-UN1,125028,57527,370201,270
1 3/16" - 20-UN1,187530,16228,970201,270
1 1/4" - 20-UN1,250031,75030,550201,270
1 5/16" - 20-UN1,312533,33732,150201,270
1 3/8" - 20-UN1,375034,92533,700201,270
1 7/16" - 20-UN1,437536,51235,320201,270
1 1/2" - 20-UN1,500038,10036,890201,270
1 9/16" - 20-UN1,562539,68838,490201,270
1 5/8" - 20-UN1,625041,27540,080201,270
1 11/16" - 20-UN1,687542,86241,680201,270
1 3/4" - 20-UN1,750044,45043,250201,270
1 13/16" - 20-UN1,812546,03744,840201,270
1 7/8" - 20-UN1,875047,62546,420201,270
1 15/16" - 20-UN1,937549,21248,000201,270
2" - 20-UN2,000050,80049,580201,270
2 1/8" - 20-UN2,125053,97552,780201,270
2 1/4" - 20-UN2,250057,15056,030201,270
2 3/8" - 20-UN2,375060,32559,120201,270
2 1/2" - 20-UN2,500063,50062,300201,270
2 5/8" - 20-UN2,625066,67565,470201,270
2 3/4" - 20-UN2,750069,85068,670201,270
2 7/8" - 20-UN2,875073,02571,820201,270
3" - 20-UN3,000076,20075,000201,270

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