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                  機械技術

                  螺紋攻牙鉆孔直徑對照表

                  時間:2018-02-06 23:27:28   作者:   來源:   閱讀:20499   評論:0
                      螺紋攻牙鉆孔直徑對照表:
                  螺紋攻牙鉆孔直徑對照表

                  公 制 粗 螺 紋

                  規格

                  標準徑

                  2級牙鉆孔徑

                  最大

                  最小

                  M1.0×0.25

                  0.75

                  0.785

                  0.729

                  M1.1×0.25

                  0.85

                  0.885

                  0.829

                  M1.2×0.25

                  0.95

                  0.985

                  0.929

                  M1.4×0.3

                  1.10

                  1.142

                  1.075

                  M1.6×0.35

                  1.25

                  1.321

                  1.221

                  M1.7×0.35

                  1.35

                  1.421

                  1.321

                  M1.8×0.35

                  1.45

                  1.521

                  1.421

                  M2.0×0.4

                  1.60

                  1.679

                  1.567

                  M2.2×0.45

                  1.75

                  1.838

                  1.713

                  M2.3×0.4

                  1.90

                  1.979

                  1.867

                  M2.5×0.45

                  2.10

                  2.138

                  2.013

                  M2.6×0.45

                  2.20

                  2.238

                  2.113

                  M3.0×0.5

                  2.50

                  2.599

                  2.459

                  M3.0×0.6

                  2.40

                  2.44

                  2.280

                  M3.5×0.6

                  2.90

                  3.010

                  2.850

                  M4.0×0.7

                  3.30

                  3.422

                  3.242

                  M4.0×0.75

                  3.25

                  3.326

                  3.106

                  M4.5×0.75

                  3.80

                  3.878

                  3.688

                  M5.0×0.8

                  4.20

                  4.334

                  4.134

                  M5.0×0.9

                  4.10

                  4.170

                  3.930

                  M6.0×1.0

                  5.00

                  5.153

                  4.917

                  M7.0×1.0

                  6.00

                  6.153

                  5.917

                  M8.0×1.25

                  6.80

                  6.912

                  6.647

                  M9.0×1.25

                  7.80

                  7.912

                  7.647

                  M10×1.5

                  8.50

                  8.676

                  8.376

                  M11×1.5

                  9.50

                  9.676

                  9.376

                  M12×1.75

                  10.30

                  10.441

                  10.106

                  M14×2.0

                  12.00

                  12.210

                  11.735

                  M16×2.0

                  14.00

                  14.210

                  13.835

                  M18×2.5

                  15.50

                  15.744

                  15.294

                  M20×2.5

                  17.50

                  17.744

                  17.294

                  M22×2.5

                  19.50

                  19.744

                  19.294

                  M24×3.0

                  21.00

                  21.252

                  20.752

                  M27×3.0

                  24.00

                  24.252

                  23.752

                  M30×3.5

                  26.50

                  26.771

                  26.211

                  公 制 細 螺 紋

                  規格

                  標準徑

                  2級牙鉆孔徑

                  最大

                  最小

                  M1.0×0.2

                  0.80

                  0.821

                  0.783

                  M1.1×0.2

                  0.90

                  0.921

                  0.883

                  M1.2×0.2

                  1.00

                  1.021

                  0.983

                  M1.4×0.2

                  1.20

                  1.221

                  0.183

                  M1.6×0.2

                  1.40

                  1.421

                  1.383

                  M1.7×0.2

                  1.45

                  1.500

                  1.460

                  M1.8×0.2

                  1.60

                  1.621

                  1.583

                  M2.0×0.25

                  1.75

                  1.785

                  1.729

                  M2.2×0.25

                  1.95

                  1.985

                  1.929

                  M2.3×0.25

                  2.05

                  2.061

                  2.001

                  M2.5×0.35

                  2.20

                  2.221

                  2.121

                  M2.6×0.35

                  2.20

                  2.246

                  2.186

                  M3.0×0.35

                  2.70

                  2.721

                  2.621

                  M3.5×0.35

                  3.20

                  3.221

                  3.121

                  M4.0×0.5

                  3.50

                  3.599

                  3.459

                  M4.5×0.5

                  4.00

                  4.099

                  3.959

                  M5×0.5

                  4.50

                  4.599

                  4.459

                  M5.5×0.5

                  5.00

                  5.099

                  4.959

                  M6.0×0.75

                  5.30

                  5.378

                  5.188

                  M6.0×0.5

                  5.50

                  5.550

                  5.400

                  M7.0×0.75

                  6.30

                  6.378

                  61.88

                  M7.0×0.5

                  6.50

                  6.550

                  64.00

                  M8.0×1.0

                  7.00

                  7.153

                  6.917

                  M8.0×0.75

                  7.30

                  7.378

                  7.188

                  M8×0.5

                  7.50

                  7.520

                  7.400

                  M9×1.0

                  8.00

                  8.153

                  7.917

                  M9×0.75

                  8.30

                  8.378

                  8.188

                  M10×1.25

                  8.80

                  8.912

                  8.647

                  M10×1.0

                  9.00

                  9.153

                  8.917

                  M10×0.75

                  9.30

                  9.378

                  9.188

                  M10×0.5

                  9.50

                  9.520

                  9.400

                  M11×1.0

                  10.00

                  10.153

                  9.917

                  M11×0.75

                  10.30

                  10.378

                  10.188

                  M11×1.5

                  10.50

                  10.676

                  10.376

                  M12×1.25

                  10.80

                  10.912

                  10.647

                  公 制 細 螺 紋

                  規格

                  標準徑

                  2級牙鉆孔徑

                  最大

                  最小

                  M12×1.0

                  11.00

                  11.153

                  10.917

                  M12×0.5

                  11.50

                  11.520

                  11.4

                  M14×1.5

                  12.50

                  12.676

                  12.376

                  M14×1.0

                  13.00

                  13.153

                  12.917

                  M15×1.5

                  13.50

                  13.676

                  13.376

                  M15×1.0

                  14.00

                  14.153

                  13.917

                  M16×1.5

                  14.50

                  14.676

                  14.376

                  M16×1.0

                  15.00

                  15.153

                  14.917

                  M17×1.5

                  15.50

                  15.676

                  15.376

                  M17×1.0

                  16.00

                  16.153

                  15.917

                  M18×2.0

                  16.00

                  16.210

                  15.835

                  M18×1.5

                  16.50

                  16.670

                  16.376

                  M18×1.0

                  17.00

                  17.153

                  16.917

                  M20×2.0

                  18.00

                  18.210

                  17.835

                  M20×1.5

                  18.50

                  18.676

                  18.376

                  M20×1.0

                  19.00

                  19.153

                  18.917

                  M20×2.0

                  20.00

                  20.210

                  19.835

                  M22×1.5

                  20.50

                  20.676

                  20.376

                  M22×1.0

                  21.00

                  21.153

                  20.917

                  M24×2.0

                  22.00

                  22.210

                  21.835

                  M24×1.5

                  22.50

                  22.676

                  22.376

                  M24×1.0

                  23.00

                  23.153

                  22.917

                  M25×2.0

                  23.00

                  23.210

                  22.835

                  M25×1.5

                  23.50

                  23.676

                  23.376

                  M25×1.0

                  24.00

                  24.153

                  23.917

                  M26×1.5

                  24.50

                  24.676

                  24.376

                  M27×2.0

                  25.00

                  25.210

                  24.835

                  M27×1.5

                  25.50

                  25.676

                  25.376

                  M27×1.0

                  26.00

                  26.153

                  25.917

                  M28×2.0

                  26.00

                  26.210

                  25.835

                  M28×1.5

                  26.50

                  26.676

                  26.376

                  M28×1.0

                  27.00

                  27.153

                  26.917

                  M30×3.0

                  27.00

                  27.252

                  26.752

                  M30×2.0

                  28.00

                  28.210

                  27.835

                  M30×1.5

                  28.50

                  28.676

                  28.376

                  M30×1.0

                  29.00

                  29.153

                  28.917

                  M32×2.0

                  30.00

                  30.210

                  29.835

                  M32×1.5

                  30.50

                  30.676

                  30.376

                  M33×3.0

                  30.00

                  30.252

                  29.752

                  M33×2.0

                  31.00

                  31.210

                  30.835

                  M33×1.5

                  31.50

                  31.376

                  31.376

                  M35×1.5

                  33.50

                  33.676

                  33.376

                  M36×3.0

                  33.00

                  33.252

                  32.752

                  M36×2.0

                  34.00

                  34.210

                  33.835

                  M36×1.5

                  34.50

                  34.676

                  34.376

                  美 制 細 螺 紋

                  規格(UNF)

                  標準徑

                  2級牙鉆孔徑

                  最大

                  最小

                  番數牙外徑




                  NO.0-80(1.524)

                  1.25

                  1.305

                  1.182

                  NO.1-72(1.854)

                  1.55

                  1.612

                  1.474

                  NO.2-64(2.184)

                  1.85

                  1.912

                  1.756

                  NO.3-56(2.515)

                  2.10

                  2.197

                  2.025

                  NO.4-48(2.845)

                  2.40

                  2.458

                  2.271

                  NO.5-44(3.175)

                  2.70

                  2.740

                  2.551

                  NO.6-40(3.505)

                  2.90

                  3.022

                  2.820

                  NO.8-36(4.166)

                  3.50

                  3.606

                  3.404

                  NO.10-32(4.826)

                  4.10

                  4.165

                  3.963

                  NO.12-28(5.846)

                  4.60

                  4.724

                  4.496

                  1/4 -28

                  5.50

                  5.588

                  5.360

                  5/16 -24

                  6.90

                  7.035

                  6.782

                  3/8 -24

                  8.50

                  8.636

                  8.382

                  7/16 -20

                  9.90

                  10.033

                  9.729

                  1/2 -20

                  11.50

                  11.607

                  11.329

                  9/16 -18

                  12.90

                  13.081

                  12.751

                  5/8 -18

                  14.50

                  14.681

                  14.351

                  3/4 -16

                  17.50

                  14.678

                  17.323

                  7/8 -14

                  20.50

                  20.675

                  20.270

                  1 -12

                  23.20

                  23.571

                  23.114

                  1-1/8 -12

                  26.50

                  26.746

                  26.289

                  1-1/4 -12

                  29.50

                  29.921

                  29.464

                  1-3/8 -12

                  32.80

                  33.096

                  32.464

                  1-1/2 -12

                  36.00

                  36.270

                  35.814

                  無 屑 絲 攻 鉆 孔 徑

                  規格

                  精度等級

                  RH4.5.6

                  RH7.8

                  RH9

                  M1.0×0.25

                  0.86

                  0.88

                  -

                  M1.1×0.25

                  0.96

                  0.98

                  -

                  M1.2×0.25

                  1.06

                  1.08

                  -

                  M1.4×0.3

                  1.24

                  1.25

                  -

                  M1.6×0.35

                  1.41

                  1.43

                  -

                  M1.7×0.35

                  1.51

                  1.53

                  -

                  M1.8×0.35

                  1.61

                  1.63

                  -

                  M2.0×0.4

                  1.78

                  1.80

                  -

                  M2.2×0.45

                  1.95

                  1.98

                  -

                  M2.3×0.4

                  2.08

                  2.10

                  -

                  M2.5×0.45

                  2.25

                  2.28

                  -

                  M2.6×0.45

                  2.35

                  1.38

                  -

                  M3.0×0.5

                  2.73

                  2.75

                  -

                  M3.0×0.6

                  3.17

                  3.20

                  -

                  M4.0×0.7

                  3.62

                  3.65

                  3.69

                  M5.0×0.8

                  4.56

                  4.60

                  4.64

                  M6.0×1.0

                  5.45

                  5.50

                  5.55

                  M7.0×1.0

                  6.45

                  6.50

                  6.55

                  M8.0×1.25

                  7.31

                  7.38

                  7.44

                  M10×1.5

                  9.18

                  9.25

                  9.32

                  M10×1.25

                  9.31

                  9.38

                  9.44

                  M12×1.75

                  11.04

                  11.12

                  11.21

                  M12×1.25

                  11.31

                  11.38

                  11.44

                   

                  美 制 管 螺 紋

                  規格(UNEF)

                  標準徑

                  2級牙鉆孔徑

                  最大

                  最小

                  NO.12 -32

                  4.70

                  4.826

                  4.623

                  1/4 -32

                  5.60

                  5.690

                  5.486

                  5/16 -32

                  7.10

                  7.264

                  7.087

                  3/8 -32

                  8.70

                  8.865

                  8.661

                  7/16 -28

                  10.20

                  10.338

                  10.135

                  1/2 -28

                  11.80

                  11.938

                  11.709

                  9/16 -28

                  13.20

                  13.386

                  13.132

                  5/8 -24

                  14.80

                  14.986

                  14.732

                  3/4 -20

                  17.80

                  17.958

                  17.678

                  7/8 -20

                  21.00

                  21.133

                  20.853

                  1 -20

                  24.00

                  24.308

                  24.028

                  美 制  粗 螺 紋

                  規格(UNC)

                  標準徑

                  2級牙鉆孔徑

                  番數牙外徑

                  最大

                  最小

                  NO.1-64(1.854)

                  1.55

                  1.582

                  1.425

                  NO.2-56(2.184)

                  1.80

                  1.871

                  1.695

                  NO.3-48(2.515)

                  2.10

                  2.146

                  1.941

                  NO.4-40(2.845)

                  2.30

                  2.385

                  2.157

                  NO.5-40(3.175)

                  2.60

                  2.697

                  2.487

                  NO.6-32(3.505)

                  2.80

                  2.895

                  2.642

                  NO.8-32(4.166)

                  3.40

                  3.530

                  3.302

                  NO.10-24(4.826)

                  3.90

                  3.962

                  3.682

                  NO.12-24(5.846)

                  4.50

                  4.597

                  4.344

                  1/4 -20

                  5.10

                  5.257

                  4.979

                  5/16 -18

                  6.60

                  6.731

                  6.401

                  3/8 -16

                  8.00

                  8.153

                  7.987

                  7/16 -14

                  9.40

                  9.500

                  9.144

                  1/2 -13

                  10.80

                  11.023

                  10.592

                  9/16 -12

                  12.20

                  12.446

                  11.989

                  5/8 -11

                  13.60

                  12.868

                  13.386

                  3/4 -10

                  16.20

                  16.840

                  16.307

                  7/8 -9

                  19.50

                  19.761

                  19.177

                  1 -8

                  22.20

                  22.606

                  21.971

                  1-1/8 -7

                  25.00

                  25.349

                  24.638

                  1-1/4 -7

                  28.20

                  28.524

                  27.813

                  1-3/8 -6

                  30.80

                  31.115

                  30.353

                  1-1/2 -6

                  34.00

                  34.290

                  33.528

                  1-3/4 -5

                  39.50

                  39.827

                  38.964

                  2 -4-1/2

                  45.20

                  45.593

                  44.679

                   

                   

                  英制螺紋

                  規格

                  鉆孔徑

                  硬材

                  軟材

                  W1/8 - 40

                  2.65

                  2.60

                  W5/32 - 32

                  3.25

                  3.20

                  W3/16 - 24

                  3.75

                  3.70

                  W1/4 - 20

                  5.10

                  5.00

                  W5/16 - 18

                  6.60

                  6.50

                  W3/8 - 16

                  8.00

                  7.90

                  W7/16 - 14

                  9.40

                  9.30

                  W1/2 - 12

                  10.70

                  10.50

                  W9/16 - 12

                  12.30

                  12.00

                  W5/8 - 11

                  13.70

                  13.50

                  W3/4 - 10

                  16.70

                  16.50

                  W7/8 - 9

                  19.50

                  19.30

                  W1 - 8

                  22.40

                  22.00

                  W1-1/8 - 7

                  25.00

                  24.80

                  W1-1/4 - 7

                  28.30

                  28.00

                   

                  英制管螺紋

                  規格

                  標準徑

                  鉆孔徑

                  最大

                  最小

                  PS1/16 -28

                  6.50

                  6.632

                  6.490

                  PS1/8 -28

                  8.50

                  8.637

                  8.495

                  PS1/4 - 19

                  11.40

                  11.549

                  11.341

                  PS3/8 - 19

                  15.00

                  15.054

                  14.846

                  PS1/2 - 14

                  18.50

                  18.773

                  18.489

                  PS3/4 - 14

                  24.00

                  24.259

                  23.975

                  PS1 - 11

                  30.20

                  30.471

                  30.111

                  PS1-1/4 -11

                  38.80

                  39.132

                  38.772

                  PS1-1/2 -11

                  44.80

                  45.025

                  44.665

                  PS2 - 11

                  56.50

                  56.836

                  56.476

                  英制管螺紋

                  規格

                  標準徑

                  有效牙部之長度(最小)中

                  之母螺牙內徑

                  標準長度(最小)中

                  之母螺牙內徑

                  使用絞刀時

                  不用絞刀時

                  PT1/16 -28

                  6.10

                  6.2

                  6.244

                  6.384

                  PT1/8 -28

                  8.10

                  8.2

                  8.249

                  8.388

                  PT1/4 -19

                  10.70

                  11

                  10.962

                  11.174

                  PT3/8 -19

                  14.20

                  14.5

                  14.448

                  14.658

                  PT1/2 -14

                  17.60

                  18

                  17.979

                  18.263

                  PT3/4 -14

                  23.00

                  23.5

                  23.378

                  23.663

                  Pt1 -11

                  29.00

                  29.5

                  29.459

                  29.822

                  PT1-1/4 -11

                  37.50

                  38

                  37.976

                  38.339

                  PT1-1/2 -11

                  43.40

                  44

                  43.869

                  44.232

                  Pt2 -11

                  54.90

                  55.5

                  55.412

                  55.844

                  美制螺紋 造徑

                  規格

                  鉆孔徑

                  NPT

                  NPS

                  使用絞刀時

                  不用絞刀時

                  1/16 -27

                  6.1

                  6.25

                  6.35

                  1/8 -27

                  8.33

                  8.43

                  8.74

                  1/4 -18

                  10.72

                  11.13

                  11.13

                  3/8 -18

                  14.27

                  14.27

                  14.68

                  1/2 -14

                  17.48

                  17.86

                  18.26

                  3/4 -14

                  22.63

                  23.01

                  23.42

                  1 -11-1/2

                  28.58

                  28.98

                  29.36

                  1-1/4-11-1/2

                  37.31

                  37.69

                  38.1

                  1-1/2-11-1/2

                  43.66

                  44.04

                  44.45

                  2 -11-1/2

                  55.58

                  55.96

                  56.36

                   

                  英制螺紋滾造徑

                  規格

                  滾造徑

                  W 3/16 - 24

                  4.08 - 4.05

                  W 1/4 - 20

                  5.51 - 5.46

                  W 5/16 - 18

                  7.01 - 6.95

                  W 3/8 - 16

                  8.48 - 8.41

                  W 7/16 - 14

                  9.92 - 9.85

                  W 1/2 - 12

                  11.31 - 11.24

                  W 9/16 -12

                  12.89 - 12.82

                  公制螺紋

                  規格

                  滾造徑



                  M3.0×0.6

                  2.56 2.53

                  M3.5×0.6

                  3.06 3.03

                  M4.0×0.7

                  3.49 3.45

                  M4.0×0.75

                  3.45 3.41

                  M4.5×0.75

                  3.96 3.92

                  M5.0×0.8

                  4.43 4.38

                  M5.0×0.9

                  4.36 4.31

                  M6.0×1.0

                  5.30 5.25

                  M7.0×1.0

                  6.30 6.25

                  M8.0×1.0

                  7.28 - 7.23

                  M8.0×1.25

                  7.12 - 7.07

                  M9.0×1.25

                  8.12 - 8.07

                  M10×1.25

                  9.10 - 9.04

                  M10×1.5

                  8.97 - 8.91

                  M11×1.5

                  9.97 - 9.91

                  M12×1.5

                  10.92 - 10.87

                  M12×1.75

                  10.79 - 10.73

                  M14×2.0

                  12.63 - 12.56

                  M16×2.0

                  14.63 - 14.56

                  M18×2.5

                  16.31 - 16.23

                  M20×2.5

                  18.31 - 18.23

                  M22×2.5

                  20.31 - 20.23

                  針車用螺紋

                  規格(UNC)

                  滾造徑

                  SM 1/8 40

                  2.735 -2.688

                  SM 1/8 44

                  2.769 -2.722

                  SM 9/64 40

                  3.128 -3.083

                  SM 11/64 40

                  3.855 -3.805

                  SM 3/16 32

                  4.205 -4.155

                  SM 3/16 28

                  4.143 -4.093

                  SM 7/32 32

                  5.003 -4.955

                  SM 15/64 28

                  5.325 -4.955

                  SM 1/4 40

                  5.890 -5.735

                  SM 1/4 28

                  5.721 -5.366

                  SM 9/32 28

                  6.528 -6.648

                  SM 11/32 28

                  8.092 -8.432

                  SM 3/8 29

                  8.880 -8.015

                  SM 7/16 30

                  10.466 -10.401

                  SM 7/16 16

                  10.037 -9.967

                  SM 1/2 20

                  11.819 -11.749

                  SM 9/16 20

                  13.400 -13.425

                  美制粗螺紋

                  規格(UNC)

                  滾造徑

                  NO.5-40

                  2.70 - 2.67

                  NO.6-32

                  2.95 - 2.91

                  NO.8-32

                  3.60 - 3.57

                  NO.10-24

                  4.09 - 4.05

                  NO.12-24

                  4.75 - 4.70

                  1/4 -20

                  5.50 - 5.45

                  5/16 -18

                  6.98 - 6.93

                  3/8 -16

                  8.45 - 8.40

                  7/16 -14

                  9.89 - 9.83

                  1/2 -13

                  11.39 - 11.32

                  9/16 -12

                  12.87 - 12.80

                  美制細螺紋

                  規格(UNF)

                  滾造徑

                  NO.5-44

                  2.73 - 2.70

                  NO.6-40

                  3.05 - 3.02

                  NO.8-36

                  3.66 - 3.63

                  NO.10-32

                  4.26 - 4.80

                  NO.12-28

                  4.84 - 4.80

                  1/4 -28

                  5.72 - 5.68

                  5/16 -24

                  7.20 - 7.16

                  3/8 -24

                  8.79 - 8.74

                  7/16 -20

                  10.23 - 10.18

                  1/2 -20

                  11.82 - 11.76


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