Size – INCH

Pitch-UNC

E (Min.)

E (Max.)

S (Min.)

S (Max.)

K (Min.)

K (Max.)

1/2

13

0.84

0.866

0.736

0.750

0.302

0.323

9/16

12

0.91

0.938

0.798

0.812

0.348

0.371

5/8

11

1.051

1.083

0.922

0.938

0.378

0.403

3/4

10

1.254

1.299

1.100

1.125

0.455

0.483

7/8

9

1.465

1.516

1.285

1.312

0.531

0.563

1

8

1.675

1.732

1.469

1.500

0.591

0.627

1-1/8

8

1.859

1.949

1.631

1.688

0.658

0.718

1-1/4

8

2.066

2.165

1.812

1.875

0.749

0.813

1-3/8

8

2.273

2.382

1.994

2.062

0.810

0.878

1-1/2

8

2.48

2.598

2.175

2.250

0.902

0.974

1-5/8

8

2.686

2.815

2.356

2.438

0.962

1.038

1-3/4

8

2.893

3.031

2.538

2.625

1.054

1.134

1-7/8

8

3.099

3.248

2.719

2.812

1.114

1.198

2

8

3.306

3.464

2.900

3.000

1.175

1.263

2-1/4

8

3.719

3.897

3.262

3.375

1.327

1.423

2-1/2

8

4.133

4.33

3.625

3.750

1.479

1.583

2-3/4

8

4.546

4.763

3.988

4.125

1.632

1.744

3

8

4.959

5.196

4.350

4.500

1.815

1.935