Diameter In.

Threads per in.

Depth of thread in.

Clearing size drill

Topping size drill

% depth of engagement

Application

16 S.W.G.-.064

56

.0095

51

56

95

Spokes & nipples

15 S.W.G.-.072

56

.0095

49

54

90

-

14 S.W.G.-.080

56

.0095

46

1/16

92

-

13 S.W.G.-.092

56

.0095

3/32

48

84

-

12 S.W.G.-. 104

56

.0095

36

44

95

-

1 1 S.W.G.-.1 16

44

.0121

3 mm.

42

93

-

1 0 S.W.G.-. 128

40

.0133

29

37

90

-

9 S.W.G.-. 144

40

.0133

26

31

90

-

8 S. W. G.-. 160

32

.0166

19

30

95

-

1/8 -.1250

40

.0133

30

38

94

Free wheels

.1540

40

.0133

5/32

30

95

Chain bolts

5/32-.1563

32

.0166

21

118

95

Small screws

3/16-.1875

32

.0166

12

22

92

Chain adjusters

7132-.2188

26

.0205

2

14

90

-

1/4 -.2500

26

.0205

6.5 mm.

3

90

Crank cottars

17/64-.2656

26

.0205

1

1

92

Crank cottars

9/32-.2813

26

.0205

L

D

89

-

5/16-.3125

26

.0205

O

J

90

Hub axle

3/8 -.3750

26

.0205

V

R

88

Hub axle

7/16-.4375

26

.0205

11.25 mm.

23/64

90

-

1 -.5000

26

.0205

13 mm.

11.75 mm.

91

-

9/16-.5625

.0205

37/64

13.25 mm.

99

Pedal pins R. & L.

9/16-.5625

.0266

37/64

13 mm.

95

Pedal pins R. & L.

5/8 -.6250

26

.0205

16 mm.

15 mm.

86

-

11/16-.6875

26

.0205

45/64

16.5 mm.

92

-

314 -.7500

26

.0205

49/64

18 mm.

100

-

7/8 -.8750

24

.0222

57/64

21.25 mm.

87

Steering column

31/32-.9688

30

.0178

63/64

15/16

88

Steering column