Danh nghĩa

KT&bước ren

CHO REN NGOÀI

CHO REN TRONG

PITCH DIAMETER

GORINGGAGE6g

TOLERANCE

PITCH DIAMETER

NOTGORINGGAGE6g

TOLERANCE

PITCH DIAMETER

GOPLUGGAGE6H

TOLERANCE

PITCH DIAMETER

NOTGOPLUGGAGE6H

TOLERANCE

MM

IN.(REF)

MM

IN. (REF)

MM

IN. (REF)

MM

IN. (REF)

M

1.6

X

0.35

1.354

.05331

1.291

.05083

1.373

.05406

1.458

.05740

M

2

X

0.4

1.721

.06776

1.654

.06512

1.740

.06850

1.830

.07205

M

2.5

X

0.45

2.188

.08614

2.117

.08335

2.208

.08693

2.303

.09067

M

3

X

0.5

2.655

.10453

2.580

.10157

2.675

.10531

2.775

.10925

M

3.5

X

0.6

3.089

.12161

3.004

.11827

3.110

.12244

3.222

.12685

M

4

X

0.7

3.523

.13870

3.433

.13516

3.545

.13957

3.663

.14421

M

5

X

0.8

4.456

.17543

4.361

.17169

4.480

.17638

4.605

.18130

M

6

X

1.0

5.324

.20961

5.212

.20520

5.350

.21063

5.500

.21654

M

8

X

1.25

7.160

.28189

7.042

.27724

7.188

.28299

7.348

.28929

M

8

X

1.0

7.324

.28835

7.212

.28394

7.350

.28937

7.500

.29528

M

10

X

1.5

8.994

.35409

8.862

.34890

9.026

.35535

9.206

.36244

M

10

X

1.25

9.160

.36063

9.042

.35598

9.188

.36173

9.348

.36803

M

10

X

1.0

9.324

.36709

9.212

.36268

9.350

.36811

9.500

.37402

M

10

X

0.75

9.491

.37366

9.391

.36972

9.513

.37453

9.645

.37972

M

12

X

1.75

10.829

.42634

10.679

.42043

10.863

.42768

11.063

.43555

M

12

X

1.5

10.994

.43283

10.854

.42732

11.026

.43409

11.216

.44157

M

12

X

1.25

11.160

.43937

11.028

.43417

11.188

.44047

11.368

.44756

M

12

X

1.0

11.324

.44583

11.206

.44118

11.350

.44685

11.510

.45315

M

14

X

2.0

12.663

.49854

12.503

.49224

12.701

.50004

12.913

.50839

M

14

X

1.5

12.994

.51157

12.854

.50606

13.026

.51283

13.216

.52031

M

15

X

1.0

14.324

.56394

14.206

.55929

14.350

.56496

14.510

.57126

M

16

X

2.0

14.663

.57728

14.503

.57098

14.701

.57878

14.913

.58713

M

16

X

1.5

14.994

.59031

14.854

.58480

15.026

.59157

15.216

.59906

M

17

X

1.0

16.324

.64268

16.206

.63803

16.350

.64370

16.510

.65000

M

18

X

1.5

16.994

.66906

16.854

.66354

17.026

.67031

17.216

.67780

M

20

X

2.5

18.334

.72181

18.164

.71512

18.376

.72346

18.600

.73228

M

20

X

1.5

18.994

.74780

18.854

.74228

19.026

.74906

19.216

.75654

M

20

X

1.0

19.324

.76079

19.206

.75614

19.350

.76181

19.510

.76811

M

22

X

2.5

20.334

.80055

20.164

.79386

20.376

.80220

20.600

.81102

M

22

X

1.5

20.994

.82654

20.854

.82102

21.026

.82780

21.216

.83528

M

24

X

3.0

22.003

.86626

21.803

.85839

22.051

.86815

22.316

.87858

M

24

X

2.0

22.663

.89224

22.493

.88555

22.701

.89374

22.925

.90256

M

25

X

1.5

23.994

.94465

23.844

.93874

24.026

.94591

24.226

.95378

M

27

X

3.0

25.003

.98437

24.803

.97650

25.051

.98626

25.316

.99669

M

27

X

2.0

25.663

1.01035

25.493

1.00366

25.701

1.01185

25.925

1.02067

M

30

X

3.5

27.674

1.08953

27.642

1.08118

27.727

1.09161

28.007

1.10264

M

30

X

2.0

28.663

1.12846

28.493

1.12177

28.701

1.12996

28.925

1.13878

M

30

X

1.5

28.994

1.14150

28.844

1.13559

29.026

1.14276

29.226

1.15063

M

33

X

2.0

31.663

1.24657

31.493

1.23988

31.701

1.24807

31.925

1.25689

M

35

X

1.5

33.994

1.33835

33.844

1.33244

34.026

1.33961

34.226

1.34748

M

36

X

4.0

33.342

1.31268

33.118

1.30386

33.402

1.31504

33.702

1.32685

M

36

X

2.0

34.663

1.36469

34.493

1.35799

34.701

1.36618

34.925

1.37500

M

39

X

2.0

37.663

1.48280

37.493

1.47610

37.701

1.48429

37.925

1.49311

NOMINAL

SIZE

GO

BASIC

ALL

CLASSES

ALL

SERIES

UNIFIED PITCH DIAMETERS

NOT GO

XTOL.

GO=+

NOGO=–

XLEAD

TOL.

X±

HALF

ANGLE

TOL.

CLASS 2B

CLASS 3B

#0-80UNF

.0519

.0542

.0536

.0002

.0002

0°30'

#1-64UNC

.0629

.0655

.0648

.0002

.0002

0°30'

#1-72UNF

.0640

.0665

.0659

.0002

.0002

0°30'

#2-56UNC

.0744

.0772

.0765

.0002

.0002

0°30'

#2-64UNF

.0759

.0786

.0779

.0002

.0002

0°30'

#3-48UNC

.0855

.0885

.0877

.0002

.0002

0°30'

#3-56UNF

.0874

.0902

.0895

.0002

.0002

0°30'

#4-40UNC

.0958

.0991

.0982

.0002

.0002

0°20'

#4-48UNF

.0985

.1016

.1008

.0002

.0002

0°30'

#5-40UNC

.1088

.1121

.1113

.0002

.0002

0°20'

#5-44UNF

.1102

.1134

.1126

.0002

.0002

0°20'

#6-32UNC

.1177

.1214

.1204

.0003

.0003

0°15'

#6-40UNF

.1218

.1252

.1243

.0002

.0002

0°20'

#8-32UNC

.1437

.1475

.1465

.0003

.0003

0°15'

#8-36UNF

.1460

.1496

.1487

.0002

.0002

0°20'

#10-24UNC

.1629

.1672

.1661

.0003

.0003

0°15'

#10-32UNF

.1697

.1736

.1726

.0003

.0003

0°15'

#12-24UNC

.1889

.1933

.1922

.0003

.0003

0°15'

#12-28UNF

.1928

.1970

.1959

.0003

.0003

0°15'

#12-32UNEF

.1957

.1998

.1988

.0003

.0003

0°15'

1⁄4-20UNC

.2175

.2224

.2211

.0003

.0003

0°15'

1⁄4-28UNF

.2268

.2311

.2300

.0003

.0003

0°15'

1⁄4-32UNEF

.2297

.2339

.2328

.0003

.0003

0°15'

5⁄16-18UNC

.2764

.2817

.2803

.0003

.0003

0°10'

5⁄16-24UNF

.2854

.2902

.2890

.0003

.0003

0°15'

5⁄16-32UNEF

.2922

.2964

.2953

.0003

.0003

0°15'

3⁄8-16UNC

.3344

.3401

.3387

.0003

.0003

0°10'

3⁄8-24UNF

.3479

.3528

.3516

.0003

.0003

0°15'

3⁄8-32UNEF

.3547

.3591

.3580

.0003

.0003

0°15'

7⁄16-14UNC

.3911

.3972

.3957

.0003

.0003

0°10'

7⁄16-20UNF

.4050

.4104

.4091

.0003

.0003

0°15'

7⁄16-28UNEF

.4143

.4189

.4178

.0003

.0003

0°15'

1⁄2-13UNC

.4500

.4565

.4548

.0003

.0003

0°10'

1⁄2-20UNF

.4675

.4731

.4717

.0003

.0003

0°15'

1⁄2-28UNEF

.4768

.4816

.4804

.0003

.0003

0°15'

9⁄16-12UNC

.5084

.5152

.5135

.0003

.0003

0°10'

9⁄16-18 UNF

.5264

.5323

.5308

.0003

.0003

0°10'

NOMINAL

SIZE

GO

BASIC

ALL

CLASSES

ALL

SERIES

UNIFIED PITCH DIAMETERS

NOT GO

XTOL.

GO=+

NOGO=–

XLEAD

TOL.

X±

HALF

ANGLE

TOL.

CLASS 2B

CLASS 3B

9⁄16-24UNEF

.5354

.5405

.5392

.0003

.0003

0°15'

5⁄8-11UNC

.5660

.5732

.5714

.0003

.0003

0°10'

5⁄8-18UNF

.5889

.5949

.5934

.0003

.0003

0°10'

5⁄8-24UNEF

.5979

.6031

.6018

.0003

.0003

0°15'

11⁄16-24UNEF

.6604

.6656

.6643

.0003

.0003

0°15'

3⁄4-10UNC

.6850

.6927

.6907

.0003

.0003

0°10'

3⁄4-16UNF

.7094

.7159

.7143

.0003

.0003

0°10'

3⁄4-20UNEF

.7175

.7232

.7218

.0003

.0003

0°15'

13⁄16-20UNEF

.7800

.7857

.7843

.0003

.0003

0°15'

7⁄8-9UNC

.8028

.8110

.8089

.0003

.0003

0°10'

7⁄8-14UNF

.8286

.8356

.8339

.0003

.0003

0°10'

7⁄8-20UNEF

.8425

.8482

.8468

.0003

.0003

0°15'

15⁄16-20UNEF

.9050

.9109

.9094

.0003

.0003

0°15'

1"-8UNC

.9188

.9276

.9254

.0004

.0004

0°05'

1"-12UNF

.9459

.9535

.9516

.0003

.0003

0°10'

1"-14 UNS

.9536

.9609

.9590

.0003

.0003

0°10'

1"-20UNEF

.9675

.9734

.9719

.0003

.0003

0°15'

11⁄16-12UN

1.0084

1.0158

1.0139

.0003

.0003

0°10'

11⁄16-18UNEF

1.0264

1.0326

1.0310

.0003

.0003

0°10'

11⁄8-7UNC

1.0322

1.0416

1.0393

.0004

.0004

0°05'

11⁄8-12UNF

1.0709

1.0787

1.0768

.0003

.0003

0°10'

11⁄8-18UNEF

1.0889

1.0951

1.0935

.0003

.0003

0°10'

13⁄16-12UN

1.1334

1.1409

1.1390

.0003

.0003

0°10'

13⁄16-18UNEF

1.1514

1.1577

1.1561

.0003

.0003

0°10'

11⁄4-7UNC

1.1572

1.1668

1.1644

.0004

.0004

0°05'

11⁄4-12UNF

1.1959

1.2039

1.2019

.0003

.0003

0°10'

11⁄4-18UNEF

1.2139

1.2202

1.2186

.0003

.0003

0°10'

15⁄16-12UN

1.2584

1.2659

1.2640

.0003

.0003

0°10'

15⁄16-18UNEF

1.2764

1.2827

1.2811

.0003

.0003

0°10'

13⁄8-6UNC

1.2667

1.2771

1.2745

.0004

.0004

0°05'

13⁄8-12UNF

1.3209

1.3291

1.3270

.0003

.0003

0°10'

13⁄8-18UNEF

1.3389

1.3452

1.3436

.0003

.0003

0°10'

17⁄16-12UN

1.3834

1.3910

1.3891

.0003

.0003

0°10'

17⁄16-18UNEF

1.4014

1.4079

1.4062

.0003

.0003

0°10'

11⁄2-6UNC

1.3917

1.4022

1.3996

.0004

.0004

0°05'

11⁄2-12UNF

1.4459

1.4542

1.4522

.0003

.0003

0°10'

11⁄2-18UNEF

1.4639

1.4704

1.4687

.0003

.0003

0°10'

NOMINAL

SIZE

UNIFIED PITCH DIAMETERS

CLASS 2A

CLASS 3A

XTOL.

GO=–

NOGO=+

GO

NOT GO

GO

NOT GO

#0-80UNF

.0514

.0496

.0519

.0506

.0002

#1-64UNC

.0623

.0603

.0629

.0614

.0002

#1-72UNF

.0634

.0615

.0640

.0626

.0002

#2-56UNC

.0738

.0717

.0744

.0728

.0002

#2-64UNF

.0753

.0733

.0759

.0744

.0002

#3-48UNC

.0848

.0825

.0855

.0838

.0002

#3-56UNF

.0867

.0845

.0874

.0858

.0002

#4-40UNC

.0950

.0925

.0958

.0939

.0002

#4-48UNF

.0978

.0954

.0985

.0967

.0002

#5-40UNC

.1080

.1054

.1088

.1069

.0002

#5-44UNF

.1095

.1070

.1102

.1083

.0002

#6-32UNC

.1169

.1141

.1177

.1156

.0003

#6-40UNF

.1210

.1184

.1218

.1198

.0002

#8-32UNC

.1428

.1399

.1437

.1415

.0003

#8-36UNF

.1452

.1424

.1460

.1439

.0002

#10-24UNC

.1619

.1586

.1629

.1604

.0003

#10-32UNF

.1688

.1658

.1697

.1674

.0003

#12-24UNC

.1879

.1845

.1889

.1863

.0003

#12-28UNF

.1918

.1886

.1928

.1904

.0003

#12-32UNEF

.1948

.1917

.1957

.1933

.0003

1⁄4-20UNC

.2164

.2127

.2175

.2147

.0003

1⁄4-28UNF

.2258

.2225

.2268

.2243

.0003

1⁄4-32UNEF

.2287

.2255

.2297

.2273

.0003

5⁄16-18UNC

.2752

.2712

.2764

.2734

.0003

5⁄16-24UNF

.2843

.2806

.2854

.2827

.0003

5⁄16-32UNEF

.2912

.2880

.2922

.2898

.0003

3⁄8-16UNC

.3331

.3287

.3344

.3311

.0003

3⁄8-24UNF

.3468

.3430

.3479

.3450

.0003

3⁄8-32UNEF

.3537

.3503

.3547

.3522

.0003

7⁄16-14UNC

.3897

.3850

.3911

.3876

.0003

7⁄16-20UNF

.4037

.3995

.4050

.4019

.0003

7⁄16-28UNEF

.4132

.4096

.4143

.4116

.0003

1⁄2-13UNC

.4485

.4435

.4500

.4463

.0003

1⁄2-20UNF

.4662

.4619

.4675

.4643

.0003

1⁄2-28UNEF

.4757

.4720

.4768

.4740

.0003

9⁄16-12UNC

.5068

.5016

.5084

.5045

.0003

9⁄16-18 UNF

.5250

.5205

.5264

.5230

.0003

NOMINAL

SIZE

UNIFIED PITCH DIAMETERS

CLASS 2A

CLASS 3A

XTOL.

GO=–

NOGO=+

GO

NOT GO

GO

NOT GO

9⁄16-24UNEF

.5342

.5303

.5354

.5325

.0003

5⁄8-11UNC

.5644

.5589

.5660

.5619

.0003

5⁄8-18UNF

.5875

.5828

.5889

.5854

.0003

5⁄8-24UNEF

.5967

.5927

.5979

.5949

.0003

11⁄16-24UNEF

.6592

.6552

.6604

.6574

.0003

3⁄4-10UNC

.6832

.6773

.6850

.6806

.0003

3⁄4-16UNF

.7079

.7029

.7094

.7056

.0003

3⁄4-20UNEF

.7162

.7118

.7175

.7142

.0003

13⁄16-20UNEF

.7787

.7743

.7800

.7767

.0003

7⁄8-9UNC

.8009

.7946

.8028

.7981

.0003

7⁄8-14UNF

.8270

.8216

.8286

.8245

.0003

7⁄8-20UNEF

.8412

.8368

.8425

.8392

.0003

15⁄16-20UNEF

.9036

.8991

.9050

.9016

.0003

1"-8UNC

.9168

.9100

.9188

.9137

.0004

1"-12UNF

.9441

.9382

.9459

.9415

.0003

1"-14 UNS

.9519

.9463

.9536

.9494

.0003

1"-20UNEF

.9661

.9616

.9675

.9641

.0003

11⁄16-12UN

1.0067

1.0010

1.0084

1.0042

.0003

11⁄16-18UNEF

1.0250

1.0203

1.0264

1.0228

.0003

11⁄8-7UNC

1.0300

1.0228

1.0322

1.0268

.0004

11⁄8-12UNF

1.0691

1.0631

1.0709

1.0664

.0003

11⁄8-18UNEF

1.0875

1.0828

1.0889

1.0853

.0003

13⁄16-12UN

1.1317

1.1259

1.1334

1.1291

.0003

13⁄16-18UNEF

1.1499

1.1450

1.1514

1.1478

.0003

11⁄4-7UNC

1.1550

1.1476

1.1572

1.1517

.0004

11⁄4-12UNF

1.1941

1.1879

1.1959

1.1913

.0003

11⁄4-18UNEF

1.2124

1.2075

1.2139

1.2103

.0003

15⁄16-12UN

1.2567

1.2509

1.2584

1.2541

.0003

15⁄16-18UNEF

1.2749

1.2700

1.2764

1.2728

.0003

13⁄8-6UNC

1.2643

1.2563

1.2667

1.2607

.0004

13⁄8-12UNF

1.3190

1.3127

1.3209

1.3162

.0003

13⁄8-18UNEF

1.3374

1.3325

1.3389

1.3353

.0003

17⁄16-12UN

1.3816

1.3757

1.3834

1.3790

.0003

17⁄16-18UNEF

1.3999

1.3949

1.4014

1.3977

.0003

11⁄2-6UNC

1.3893

1.3812

1.3917

1.3856

.0004

11⁄2-12UNF

1.4440

1.4376

1.4459

1.4411

.0003

11⁄2-18UNEF

1.4624

1.4574

1.4639

1.4602

.0003

Đường kính

danh nghĩa

của ren

Số ren/inch chiều dài

Hình ảnh

1/16’’

27

1/8’’

27

¼’’

18

3/8’’

18

½’’

14

¾’’

14

1’’

11.5

1-1/4’’

11.5

1-1/2’’

11.5

2’’

11.5

2-1/2’’

8

3’’

8

3-1/2’’

8

4’’

8

5’’

8

6’’

8

8’’

8

10’’

8

12’’

8

14’’

8

16’’

8

18’’

8

20’’

8

22’’

8

24’’

8

Đường kính

danh nghĩa

của ren

Số ren/inch chiều dài

Hình ảnh

1/16

27

1/8

27

1/4

18

3/8

18

1/2

14

3/4

14

1

11.5

1-1/4

11.5

1-1/2

11.5

2

11.5

NOMINAL

SIZE

    ĐƯỜNG KÍNH DANH NGHĨA

GO

28 NOT GO

38 NOT GO

XTOL.

GO=+

NOGO=–

(.086)#2-56UNC

.0976

.0996

.0989

.0002

(.086)#2-64UNF

.0962

.0981

.0974

.0002

(.099)#3-48UNC

.1126

.1148

.1140

.0002

(.099)#3-56UNF

.1106

.1126

.1119

.0002

(.112)#4-40UNC

.1283

.1308

.1299

.0002

(.112)#4-48UNF

.1256

.1279

.1271

.0002

(.125)#5-40UNC

.1413

.1438

.1430

.0002

(.138)#6-32UNC

.1583

.1611

.1601

.0003

(.138)#6-40UNF

.1543

.1569

.1560

.0002

(.164)#8-32UNC

.1843

.1872

.1862

.0003

(.164)#8-36UNF

.1821

.1849

.1840

.0002

(.190)#10-24 UNC

.2170

.2203

.2192

.0003

(.190)#10-32UNF

.2103

.2133

.2123

.0003

(.216)#12-24 UNC

.2430

.2464

.2453

.0003

1⁄4-20UNC

.2825

.2864

.2851

.0003

1⁄4-28UNF

.2732

.2765

.2754

.0003

5⁄16-18UNC

.3486

.3529

.3515

.0003

5⁄16-24UNF

.3395

.3433

.3421

.0003

3⁄8-16UNC

.4156

.4203

.4189

.0003

3⁄8-24UNF

.4020

.4059

.4047

.0003

7⁄16-14UNC

.4839

.4890

.4875

.0003

7⁄16-20UNF

.4700

.4744

.4731

.0003

1⁄2-13UNC

.5499

.5554

.5537

.0003

1⁄2-20UNF

.5325

.5371

.5357

.0003

9⁄16-12UNC

.6167

.6225

.6208

.0003

9⁄16-18 UNF

.5986

.6035

.6020

.0003

5⁄8-11UNC

.6841

.6903

.6885

.0003

5⁄8-18UNF

.6611

.6661

.6646

.0003

3⁄4-10UNC

.8149

.8216

.8196

.0003

3⁄4-16UNF

.7906

.7961

.7945

.0003

PIPE SIZE - TPI

(Inch)

NPSM

NPSC

NPSL

Ren Trong  2B

Ren Ngoài 2A

Ren Trong

Ren Trong

Ren Ngoài

GO

NOT

GO

GO

NOT

GO

GO

NOT

GO

GO

NOT

GO

GO

NOT

GO

1/8÷27

.3736

.3783

.3725

.3689

.3701

.3771

.3863

.3898

.3840

.3805

1/4÷18

.4916

.4974

.4903

.4859

.4864

.4968

.5073

.5125

.5038

.4986

3/8÷18

.6270

.6329

.6256

.6211

.6218

.6322

.6444

.6496

.6409

.6357

1/2÷14

.7784

.7851

.7769

.7718

.7717

.7851

.8008

.8075

.7963

.7896

3/4÷14

.9889

.9958

.9873

.9820

.9822

.9956

1.0112

1.0179

1.0067

1.0000

1÷11-1/2

1.2386

1.2462

1.2369

1.2311

1.2305

1.2468

1.2658

1.2739

1.2604

1.2523

1-1/4÷11-1/2

1.5834

1.5912

1.5816

1.5756

1.5752

1.5915

1.6106

1.6187

1.6051

1.5970

1-1/2÷11-1/2

1.8223

1.8302

1.8205

1.8144

1.8142

1.8305

1.8495

1.8576

1.8441

1.8360

2÷11-1/2

2.2963

2.3044

2.2944

2.2882

2.2881

2.3044

2.3234

2.3315

2.3180

2.3099

2-1/2÷8

2.7622

2.7720

2.7600

2.7526

2.7504

2.7739

2.8012

2.8129

2.7934

2.7817

3÷8

3.3885

3.3984

3.3862

3.3786

3.3768

3.4002

3.4276

3.4393

3.4198

3.4081