Series ST Plugs

BODY SIZE (inches)

THREAD SIZE  NPTF

D

F

G

1/8

ST1F1-6

ST1F1-S

ST1F1-SS

1/8-27

0.98

0.56

0.65

1/4

ST2F2-B

ST2F2-S

ST2F2-SS

1/4-18

1.39

0.75

0.87

3/8

ST3F3-B

ST3F3-S

ST3F3-SS

3/8 - 14

2.04

1.38

1.59

1/2

ST4F4-B

ST4F4-S

ST4F4-SS

1/2 - 14

1.85

1.13

1.30

3/4

ST6F6-B

ST6F6-S

ST6F6-SS

3/4 - 14

2.04

1.38

1.59

1

ST8F8-B

ST8F8-S

ST8F8-SS

1-11 1/2

2.16

1.63

1.88

1 1/4

ST10F10-B

ST10F10-S

ST10F10-SS

1 1/4-11 1/2

2.38

2.00

2.31

1 1/2

ST12F12-B

ST12F12-S

ST12F12-SS

1 1/2-11 1/2

2.81

2.38

2.74

2

ST16F16-B

-

-

2-11 1/2

-

-

-