Metric Hex Key Hexagon Keys Series Tools

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Metric Allen Hexagon, Hex Key, Hexagon Keys Series Tools

Metric Hexagon Keys per. ASME B18.3.2M

Metric Hexagon Keys per. ASME B18.3.2M
Hardness: RC 45-53.

Nominal
Key
Size

F
Hex Width
Across
Flats

C
Hex Width
Across
Corners

S
Length
Of Short
Arm

L
Length of
Long Arm
Short Series

L
Length of
Long Arm
Long Series

R
Radius
of
Bend
Min.

K
Chamfer
Max.

Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.

0.7

0.711

0.698

0.798

0.762

8

3

34

28

69

63

1.5

0.08

0.9

0.899

0.876

0.998

0.960

11

6

34

28

71

65

1.5

0.10

1.3

1.270

1.244

1.422

1.372

16

11

44

39

75

69

1.5

0.14

1.5

1.500

1.470

1.690

1.640

14

13

45

43

78

76

1.5

0.14

2

2.000

1.970

2.250

2.200

16

15

50

48

83

81

2.0

0.14

2.5

2.500

2.470

2.820

2.770

18

17

56

53

90

87

2.5

0.14

3

3.000

2.960

3.399

3.340

20

18

63

60

100

97

3.0

0.18

4

4.000

3.960

4.532

4.470

25

23

70

66

106

102

4.0

0.24

5

5.000

4.960

5.690

5.630

28

26

80

76

118

114

5.0

0.30

6

6.000

5.950

6.828

6.760

32

30

90

86

140

136

6.0

0.36

8

8.000

7.950

9.136

9.030

36

34

100

95

160

155

8.0

0.49

10

10.000

9.950

11.470

11.340

40

38

112

106

170

164

10.0

0.62

12

12.000

11.950

13.764

13.590

45

43

125

119

212

206

12.0

0.76

14

14.000

13.930

16.058

15.880

56

53

140

133

236

229

14.0

0.85

17

17.000

16.930

19.499

19.300

63

60

160

152

250

242

17.0

1.04

19

19.000

18.930

21.793

21.580

70

67

180

171

280

271

19.0

1.16

22

22.000

21.930

25.234

25.000

80

76

200

190

335

325

22.0

1.36

24

24.000

23.930

27.525

27.240

90

86

224

213

375

364

24.0

1.49

27

27.000

26.870

30.969

30.710

100

95

250

238

---

---

27.0

1.68

32

32.000

31.840

36.704

36.430

125

119

315

300

---

---

32.0

1.99

36

36.000

35.840

41.292

40.900

140

133

355

338

---

---

36.0

2.25

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