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A

B

C

D

P

F

H

R

N

英制
A

日制
PH

薄鋼
　

德制
PG

公制
M

美制
NPT

6

G1/4

C13

PG7

M14X1.5

N1/4

8

G3/8

C15

PG9

M16X1.5

M14X1.5

N3/8

10

G3/8

C15

PG9

M20X1.5

N3/8

12

G1/2

PF16

C19

PGll

PG13

M20x1.5

N1/2

15

G1/2

嚇16

C19

PGl3.5

PGl6

M20X15

M24X1.5

M27X2

N1/2

20

G3/4

PF22

C25

PG21

M27X2

M30X2

M33X2

N3/4

25

G1

PF28

C31

C29

M33X2

M36X2

M42X2

N3/4

32

G1一1/4

PF36

C39

M42X2

M48x2

M48X2

N1—1/2

38

G1—1/2

PF42

C51

C35

PG42

M48X2

M76X2

N1—1/2

51

G2

FF54

C63

C48

M60X2

M76x2

64

G2—1/2

PF70

C75

M76X2

M88X2

75

G3

PF82

M88X2

100

G4

PFl04

M114X2

125

G5

PFl26

M140X2

150

G6