Common Thread Sizes

common thread sizes

Size

JIC/UNF

BSP

NPT

Size

JIC/UNF

BSP

NPT

Size

JIC/UNF

BSP

NPT

-02

5/16” x 24

1/16" x 27

-06

9/16” x 18

3/8" x 19

3/8" x 18

-16

1 5/16” x 12

1" x 11

1" x 11 1/2

-03

3/8” x 24

1/8" x 28

1/8" x 27

-07

5/8” x 18

-20

1.5/8” x 12

1 1/4" x 11

1 1/4" x 11 1/2

-04

7/16” x 20

1/4" x 19

1/4" x 18

-08

3/4” x 16

1/2" x 14

1/2" x 14

-24

1 7/8” x 12

1 1/2" x 11

1 1/2" x 11 1/2

-44

7/16” x 24

-10

7/8” x 14

5/8" x 14

-28

2 1/4” x 12

1 3/4" x 11

-05

1/2 x 20

-12

1 1/6” x 12

3/4" x 14

3/4" x 14

-32

2 1/2” x 12

2" x 11

2" x 11 1/2

Metric

Thread

Metric

Thread

Metric

Thread

Metric

Thread

-21

8 x 1.00

-M121

12 x 1.00

-M16

16 x 1.50

-M26

26 x 1.50

-22

8 x 1.25

-M122

12 x 1.25

-M18

18 x 1.50

-M30

30 x 1.50

-31

10 x 1.00

-M12

12 x 1.50

-M20

20 x 1.50

-32

10 x 1.25

-M142

14 x 1.25

-M22

22 x 1.50

-35

10 x 1.50

-M14

14 x 1.50

-M24

24 x 1.50