细牙：UNF

规格

d

P

D

E

NO.3-56

2.515

0.454

16

5

NO.4-48

2.845

0.529

20

5

NO.5-44

3.175

0.577

20

5

NO.6-40

3.505

0.635

20

5

NO.8-36

4.166

0.706

20

7

NO.10-32

4.826

0.794

20

7

NO.12-28

5.486

0.907

20

7

1/4-28

6.35

0.907

25

9

5/16-24

7.938

1.058

25

9

3/8-24

9.525

1.058

30

11

7/16-20

11.112

1.27

30

11

1/2-20

12.70

1.27

38

10

9/16-18

14.288

1.411

38

10

5/8-18

15.875

1.411

45

14