Item

Combination Coupling

Rigid conduit tube thread

Thin-wall conduit tube thread

Rigld Steel condult

(ANSI)

INCH

Size

Item NO

External

thread

Item NO

External

thread

Item NO

External

thread

ℓ1

ℓ2

A 

DC-

CCT

＃10

CTG16

DC-

CCN

＃10

CTC19

DC-

CCP

-

-

1/4"

14.0

21.5

29.0

＃12

CTG16

＃12

CTC19

＃12

NPT1/2

3/8"

14.0

23.5

32.5

＃16

CTG16

＃16

CTC19

＃16

NPT1/2

1/2"

14.0

25.5

36.0

＃22

CTG22

＃22

CTC25

＃22

NPT3/4

3/4"

14.0

27.0

41.0

＃28

CTG28

＃28

CTC31

＃28

NPT1

1"

15.0

32.5

48.7

＃36

CTG36

＃36

CTC39

＃36

NPT1-1/4

1-1/4"

17.0

36.0

59.3

＃42

CTG42

＃42

CTC51

＃42

NPT1-1/2

1-1/2"

16.5

41.0

68.0

＃54

CTG54

＃54

CTC63

＃54

NPT2

2"

18.0

44.0

81.3

＃70

CTG70

＃70

CTC75

＃70

NPT2-1/2

2-1/2"

27.0

68.0

102.0

＃82

CTG82

-

-

＃82

NPT3

3"

30.0

75.0

121.0

＃104

CTG104

-

-

＃104

NPT4

4"

33.0

90.0

153.0