Norminal Size
[Inches]

Dimensions [mm]

Tolerance
+/-

A

B

C

D

E

F

G

K

L

M

A

A

1/4

11.9

7.85

6.35

6.35

24.6

15.5

22.4

40.4

4.85

35.1

1.50

1.50

5/16

13.5

9.65

7.85

7.85

29.5

19.1

26.2

48.5

5.60

42.2

1.50

1.50

3/8

16.8

11.2

9.65

9.65

35.8

23.1

31.8

58.5

6.35

51.5

3.30

1.50

7/16

19.1

12.7

11.2

11.2

41.4

26.9

36.6

67.5

7.85

60.5

3.30

1.50

1/2

20.6

15.7

12.7

12.7

46.0

30.2

41.4

77.0

9.65

68.5

3.30

1.50

5/8

26.9

20.6

15.7

16.0

58.5

38.1

51.0

95.5

11.2

85.0

3.30

1.50

3/4

31.8

24.6

20.6

19.1

70.0

46.0

60.5

115

12.7

101

6.35

1.50

7/8

36.6

25.4

24.6

22.4

81.0

53.0

71.5

135

12.7

114

6.35

1.50

1

42.9

28.7

25.4

25.4

93.5

60.5

81.0

151

14.2

129

6.35

1.50

1 1/8

46.0

31.8

31.8

28.7

103

68.5

91.0

172

16.0

142

6.35

1.50

1 1/4

51.5

35.1

35.1

31.8

115

76.0

100

191

17.5

156

6.35

3.30

1 3/8

57.0

38.1

38.1

35.1

127

84.0

111

210

19.1

174

6.35

3.30

1 1/2

60.5

41.4

41.1

38.1

137

92.0

122

230

20.6

187

6.35

3.30

1 3/4

73.0

51.0

54.0

44.5

162

103

146

279

25.4

231

6.35

3.30

2

82.5

57.0

60.0

51.0

184

122

172

312

31.0

263

6.35

3.30

2 1/2

105

70.0

66.5

66.5

238

145

203

377

35.1

330

6.35

6.35