UNF Feingewinde
 

Ø

Gangzahl

VorbohrØ/mm

Millimeter

Inch Dezimal

#4

48

2,40

2,8448

0,1120

#6

40

2,95

3,5052

0,1380

#8

36

3,50

4,1656

0,1640

#10

32

4,10

4,7625

0,1875

#12

28

4,70

5,4864

0,2160

1/4

28

5,50

6,3500

0,2500

5/16

24

6,90

7,9375

0,3125

3/8

24

8,50

9,5250

0,3750

7/16

20

9,90

11,1125

0,4375

1/2

20

11,50

12,7000

0,5000

9/16

18

12,90

14,2875

0,5625

5/8

18

14,50

15,8750

0,6250

3/4

16

17,50

19,0500

0,7500

7/8

14

20,50

23,8125

0,9375

1

12

23,25

25,4000

1,0000

NPT Rohrgewinde
 

Ø

Gangzahl

VorbohrØ/mm

Millimeter

Inch Dezimal

1/8

27

8,50

10,287

0,405

1/4

18

11,00

13,716

0,540

3/8

18

14,50

17,145

0,675

1/2

14

18,00

21,336

0,840

3/4

14

23,00

26,670

1,050

1

11.1/2

29,00

33,401

1,315

1.1/4

11.1/2

38,00

42,164

1,660

1.1/2

11.1/2

44,00

48,260

1,900

2

11.1/2

56,00

Schraubenlängen
 

1/4

6,350

2.1/4

57,150

3/8

9,525

2.1/2

63,500

1/2

12,700

2.3/4

69,850

5/8

15,875

3

76,200

3/4

19,050

3.1/4

82,550

7/8

22,225

3.1/2

88,900

1

25,400

3.3/4

95,250

1.1/4

31,750

4

101,600

1.1/2

38,100

4.1/4

107,950

1.3/4

44,450

4.1/2

114,300

2

50,800

4.3/4

120,650