Series ST Plugs

BODY SIZE (inches)

THREAD SIZE  NPTF

D

F

G

1/8

ST1M1-B

ST1M1-S

ST1F1-SS

1/8-27

1.04

0.44

0.51

1/4

ST2M2-B

ST2M2-S

ST2F2-SS

1/4-18

1.53

0.56

0.65

3/8

ST3M3-B

ST3M3-S

ST3F3-SS

3/8-14

1.69

0.69

0.79

1/2

ST4M4-B

ST4M4-S

ST4F4-SS

1/2-14

1.94

0.88

1.01

3/4

ST6M6-6

ST6M6-S

ST6F6-SS

3/4-14

2.19

1.06

1.23

1

ST8M8-B

ST8M8-S

ST8F8-SS

1 -11 1/2

2.51

1.38

1.59

1 1/4

ST10M10-B

ST10M10-S

-

1 1/4-11 1/2

-

-

-

1 1/2

-

ST12M12-S

-

1 1/2-11 1/2

-

-

-

2

-

ST16M16-S

ST16M16-SS

2-11 1/2

-

-

-