Metric

M2

M2.5

M3

M4

M5

M6

M8

Key A/F

.89mm

1.27mm

1.5mm

2mm

2.5mm

3mm

4mm

Length

  3mm

52p

51p

16p

-

-

-

-

  4mm

-

-

18p

14p

-

-

-

BA

6BA

4BA

2BA

  5mm

-

-

18p

14p

16p

-

-

Key A/F

.050"

1/16"

3/32"

  6mm

66p

59p

18p

14p

16p

16p

-

Length

  8mm

-

63p

18p

16p

16p

16p

18p

1/8"

23p

24p

-

10mm

67p

-

23p

16p

18p

18p

18p

3/16"

25p

26p

27p

12mm

-

-

32p

25p

20p

18p

21p

1/4"

27p

28p

29p

16mm

-

-

37p

28p

30p

21p

23p

3/8"

31p

32p

33p

20mm

-

-

-

30p

32p

25p

27p

1/2"

36p

38p

39p

25mm

-

-

-

-

37p

28p

37p

5/8"

-

44p

47p

30mm

-

-

-

46p

48p

35p

48p

3/4"

45p

49p

56p

40mm

-

-

-

-

-

-

66p

1"

54p

57p

61p

UNF

10/32

1/4"

5/16"

3/8"

UNC

4/40

6/32

8/32

10/24

1/4"

5/16"

3/8"

Key A/F

3/32"

1/8"

5/32"

3/16"

Key A/F

.050"

1/16"

5/64"

3/32"

1/8"

5/32"

3/16"

Length

Length

1/4"

16p

18p

-

-

1/8"

21p

15p

18p

-

-

-

-

3/8"

16p

22p

22p

25p

1/4"

23p

16p

22p

23p

24p

25p

-

1/2"

23p

27p

29p

31p

3/8"

-

-

25p

26p

25p

26p

28p

5/8"

-

31p

34p

46p

1/2"

29p

25p

30p

31p

32p

33p

34p

3/4"

34p

36p

42p

54p

5/8"

-

-

-

-

38p

39p

40p

1"

41p

43p

49p

59p

3/4"

-

-

-

-

41p

43p

44p

1"

-

-

-

-

48p

50p

52p

1 1/4"

-

-

-

-

-

-

68p

BSF

3/16"

1/4"

5/16"

3/8"

7/16"

1/2"

BSW

3/16"

1/4"

5/16"

3/8"

7/16"

Key A/F

3/32"

1/8"

5/32"

3/16"

7/32"

1/4"

Key A/F

3/32"

1/8"

5/32"

3/16"

7/32"

Length

Length

1/4"

41p

28p

34p

-

-

-

1/4"

25p

25p

25p

-

-

3/8"

50p

30p

37p

61p

-

-

5/16"

27p

27p

27p

25p

-

1/2"

55p

39p

51p

66p

75p

80p

3/8"

31p

29p

29p

29p

-

3/4"

-

61p

78p

77p

-

87p

1/2"

39p

33p

33p

35p

116p

1"

-

76p

-

-

84p

110p

3/4"

45p

39p

38p

41p

-

1 1/2"

-

-

-

-

-

118p

1"

65p

48p

49p

59p

151p

2"

-

-

-

-

97p

-

1 1/4"

-

59p

-

-

166p

2 1/2"

-

-

-

-

-

136p

1 1/2"

-

88p

89p

95p

172p

1 3/4"

-

-

-

113p

207p

2"

-

99p

129p

-

223p

2 1/2"

-

-

-

-

239p