I.C.

Pitch

Ordering Code

L

X

Y

TPI

RH

LH

External
　

3/8″

10

16ER10 APIRD

16EL10API RD

16

1.1

1.4

8

16ER8 APIRD

16EL8 APIRD

1.3

1.5

1/2″

10

22ER10 APIRD

22EL10 APIRD

22

1.5

1.7

8

22ER8 API RD

22EL8 APIRD

2.2

2.3

Internal
　

3/8″

10

16NR10 API RD

16NL10 APIRD

16

1.1

1.4

8

16NR8 APIRD

16NL8 APIRD

1.3

1.5

1/2″

10

22NR10 APIRD

22NL10 APIRD

22

1.5

1.7

8

22NR8 APIRD

22NL8 APIRD

2.2

2.3