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NUMBER SIZE MACHINE SCREWS

TAP DRILL AND CLEARANCE DRILL SIZES

SCREW SIZE THREADS PER INCH DRILL SIZES

No.

O.D.

N.C.

N.F.

TAP

CLEAR

0

.060

 

80

3/64

#51

1

.073

64

 

#53

#47

1

.073

 

72

#53

#47

2

.086

56

 

#50

#42

2

.086

 

64

#50

#42

3

.099

48

 

#47

#37

3

.099

 

56

#46

#37

4

.112

40

 

#43

#31

4

.112

 

48

3/32

#31

5

.125

40

 

#38

#29

5

.125

 

44

#37

#29

6

.138

32

 

#36

#27

6

.138

 

40

#33

#27

8

.164

32

 

#29

#18

8

.164

 

36

#29

#18

10

.190

24

 

#26

#9

10

.190

 

32

#21

#9

12

.216

24

 

#16

#2

12

.216

 

28

#15

#2

Note: Tap Drill Sizes shown give approximately 75% depth of thread

 


Last Updated 03/16/2007

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