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攻絲前底孔及麻花鑽尺寸(公制螺紋/普通螺紋)

  • 用于普通螺紋(按GB/T 193-2003) 的麻花鑽直徑 —— 粗牙系列


    螺紋

    麻花鑽

    直徑

    mm

    公稱

    直徑

    螺距

    下列等級的小徑 (mm)

    5H

    最大

    6H

    最大

    7H

    最大

    5H6H7H

    最小

    1

    0.25

    0.785

    /

    /

    0.729

    0.75

    1.1

    0.25

    0.885

    /

    /

    0.829

    0.85

    1.2

    0.25

    0.985

    /

    /

    0.929

    0.95

    1.4

    0.3

    1.142

    1.16

    /

    1.075

    1.1

    1.6

    0.35

    1.301

    1.321

    /

    1.221

    1.25

    1.8

    0.35

    1.501

    1.521

    /

    1.421

    1.45

    2

    0.4

    1.657

    1.679

    /

    1.567

    1.6

    2.2

    0.45

    1.813

    1.838

    /

    1.713

    1.75

    2.5

    0.45

    2.113

    2.138

    /

    2.013

    2.05

    3

    0.5

    2.571

    2.599

    2.639

    2.459

    2.5

    3.5

    0.6

    2.975

    3.01

    3.05

    2.85

    2.9

    4

    0.7

    3.382

    3.422

    3.466

    3.242

    3.3

    4.5

    0.75

    3.838

    3.878

    3.924

    3.688

    3.7

    5

    0.8

    4.294

    4.334

    4.384

    4.134

    4.2

    6

    1

    5.107

    5.153

    5.217

    4.917

    5

    7

    1

    6.107

    6.153

    6.217

    5.917

    6

    8

    1.25

    6.859

    6.912

    6.982

    6.647

    6.8

    9

    1.25

    7.859

    7.912

    7.982

    7.647

    7.8

    10

    1.5

    8.612

    8.676

    8.751

    8.376

    8.5

    11

    1.5

    9.612

    9.676

    9.751

    9.376

    9.5

    12

    1.75

    10.371

    10.441

    10.531

    10.106

    10.2

    14

    2

    12.135

    12.21

    12.31

    11.835

    12

    16

    2

    14.135

    14.21

    14.31

    13.835

    14

    18

    2.5

    15.649

    15.744

    15.854

    15.294

    15.5

    20

    2.5

    17.649

    17.744

    17.854

    17.294

    17.5

    22

    2.5

    19.649

    19.744

    19.854

    19.294

    19.5

    24

    3

    21.152

    21.252

    21.382

    20.752

    21

    27

    3

    24.152

    24.252

    24.382

    23.752

    24

    30

    3.5

    26.661

    26.771

    26.921

    26.211

    26.5

    33

    3.5

    29.661

    29.771

    29.921

    29.211

    29.5

    36

    4

    32.145

    32.27

    32.42

    31.67

    32

    39

    4

    35.145

    35.27

    35.42

    34.67

    35

    42

    4.5

    37.659

    37.779

    37.979

    37.129

    37.5

    45

    4.5

    40.659

    40.779

    40.979

    40.129

    40.5

    48

    5

    43.147

    43.297

    43.487

    42.587

    43

    52

    5

    47.147

    47.297

    47.487

    46.587

    47

    56

    5.5

    50.646

    50.796

    50.996

    50.046

    50.5


  • 用于普通螺紋(按GB/T 193-2003) 的麻花鑽直徑 —— 細牙系列


    螺紋

    麻花鑽

    直徑

    mm

    公稱

    直徑

    螺距

    下列等級的小徑 (mm)

    5H

    最大

    6H

    最大

    7H

    最大

    5H6H7H

    最小

    2.5

    0.35

    2.201

    2.221

    /

    2.121

    2.15

    3

    0.35

    2.701

    2.721

    /

    2.621

    2.65

    3.5

    0.35

    3.201

    3.221

    /

    3.121

    3.15

    4

    0.5

    3.571

    3.599

    3.639

    3.459

    3.5

    4.5

    0.5

    4.071

    4.099

    4.139

    3.959

    4

    5

    0.5

    4.571

    4.599

    4.639

    4.459

    4.5

    5.5

    0.5

    5.071

    5.099

    5.139

    4.959

    5

    6

    0.75

    5.338

    5.378

    5.424

    5.188

    5.2

    7

    0.75

    6.338

    6.378

    6.424

    6.188

    6.2

    8

    0.75

    7.338

    7.378

    7.424

    7.188

    7.2

    9

    0.75

    8.338

    8.378

    8.424

    8.188

    8.2

    10

    0.75

    9.338

    9.378

    9.424

    9.188

    9.2

    11

    0.75

    10.338

    10.378

    10.424

    10.188

    10.2

    8

    1

    7.107

    7.153

    7.217

    6.917

    7

    9

    1

    8.107

    8.153

    8.217

    7.917

    8

    10

    1

    9.107

    9.153

    9.217

    8.917

    9

    11

    1

    10.107

    10.153

    10.217

    9.917

    10

    12

    1

    11.107

    11.153

    11.217

    10.917

    11

    14

    1

    13.107

    13.153

    13.217

    12.917

    13

    15

    1

    14.107

    14.153

    14.217

    13.917

    14

    16

    1

    15.107

    15.153

    15.217

    14.917

    15

    17

    1

    16.107

    16.153

    16.217

    15.917

    16

    18

    1

    17.107

    17.153

    17.217

    16.917

    17

    20

    1

    19.107

    19.153

    19.217

    18.917

    19

    22

    1

    21.107

    21.153

    21.217

    20.917

    21

    24

    1

    23.107

    23.153

    23.217

    22.917

    23

    25

    1

    24.107

    24.153

    24.217

    23.917

    24

    27

    1

    26.107

    26.153

    26.217

    25.917

    26

    28

    1

    27.107

    27.153

    27.217

    26.917

    27

    30

    1

    29.107

    29.153

    29.217

    28.917

    29

    10

    1.25

    8.859

    8.912

    8.982

    8.647

    8.8

    12

    1.25

    10.859

    10.912

    10.982

    10.647

    10.8

    14

    1.25

    12.859

    12.912

    12.982

    12.647

    12.8

    12

    1.5

    10.612

    10.676

    10.751

    10.376

    10.5

    14

    1.5

    12.612

    12.676

    12.751

    12.376

    12.5

    15

    1.5

    13.612

    13.676

    13.751

    13.376

    13.5

    16

    1.5

    14.612

    14.676

    14.751

    14.376

    14.5

    17

    1.5

    15.612

    15.676

    15.751

    15.376

    15.5

    18

    1.5

    16.612

    16.676

    16.751

    16.376

    16.5

    20

    1.5

    18.612

    18.676

    18.751

    18.376

    18.5

    22

    1.5

    20.612

    20.676

    20.751

    20.376

    20.5

    24

    1.5

    22.612

    22.676

    22.751

    22.376

    22.5

    25

    1.5

    23.612

    23.676

    23.751

    23.376

    23.5

    26

    1.5

    24.612

    24.676

    24.751

    24.376

    24.5

    27

    1.5

    25.612

    25.676

    25.751

    25.376

    25.5

    28

    1.5

    26.612

    26.676

    26.751

    26.376

    26.5

    30

    1.5

    28.612

    28.676

    28.751

    28.376

    28.5

    32

    1.5

    30.612

    30.676

    30.751

    30.376

    30.5

    33

    1.5

    31.612

    31.676

    31.751

    31.376

    31.5

    35

    1.5

    33.612

    33.676

    33.751

    33.376

    33.5

    36

    1.5

    34.612

    34.676

    34.751

    34.376

    34.5

    38

    1.5

    35.612

    36.676

    36.751

    36.376

    36.5

    39

    1.5

    37.612

    37.676

    37.751

    37.376

    37.5

    40

    1.5

    38.612

    38.676

    38.751

    38.376

    38.5

    42

    1.5

    40.612

    40.676

    40.751

    40.376

    40.5

    45

    1.5

    43.612

    43.676

    43.751

    43.376

    43.5

    48

    1.5

    46.612

    46.676

    46.751

    46.376

    46.5

    50

    1.5

    48.612

    48.676

    48.751

    48.376

    48.5

    52

    1.5

    50.612

    50.676

    50.751

    50.376

    50.5

    18

    2

    16.135

    16.21

    16.31

    15.835

    16

    20

    2

    18.135

    18.21

    18.31

    17.835

    18

    22

    2

    20.135

    20.21

    20.31

    19.835

    20

    24

    2

    22.135

    22.21

    22.31

    21.835

    22

    25

    2

    23.135

    23.21

    23.31

    22.835

    23

    27

    2

    25.135

    25.21

    25.31

    24.835

    25

    28

    2

    26.135

    26.21

    26.31

    25.835

    26

    30

    2

    28.135

    28.21

    28.31

    27.835

    28

    32

    2

    30.135

    30.21

    30.31

    29.835

    30

    33

    2

    31.135

    31.21

    31.31

    30.835

    31

    36

    2

    34.135

    34.21

    34.31

    33.835

    34

    39

    2

    37.135

    37.21

    37.31

    36.835

    37

    40

    2

    38.135

    38.21

    38.31

    37.835

    38

    42

    2

    40.135

    40.21

    40.31

    39.835

    40

    45

    2

    43.135

    43.21

    43.31

    42.835

    43

    48

    2

    46.135

    46.21

    46.31

    45.835

    46

    50

    2

    48.135

    48.21

    48.31

    47.835

    48

    52

    2

    50.135

    50.21

    50.31

    49.835

    50

    30

    3

    27.152

    27.252

    27.382

    26.752

    27

    33

    3

    30.152

    30.252

    30.382

    29.752

    30

    36

    3

    33.152

    33.252

    33.382

    32.752

    33

    39

    3

    36.152

    36.252

    36.382

    35.752

    36

    40

    3

    37.152

    37.252

    37.382

    36.752

    37

    42

    3

    39.152

    39.252

    39.382

    38.752

    39

    45

    3

    42.152

    42.252

    42.382

    41.752

    42

    48

    3

    45.152

    46.252

    45.382

    44.752

    45

    50

    3

    47.152

    47.252

    47.382

    46.752

    47

    52

    3

    49.152

    49.252

    49.382

    48.752

    49

    42

    4

    38.145

    38.27

    38.42

    37.67

    38

    45

    4

    41.145

    41.27

    41.42

    40.67

    41

    48

    4

    44.145

    44.27

    44.42

    43.67

    44

    52

    4

    48.145

    48.27

    48.42

    47.67

    48


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