Nominal Dia, Inches

E

F

G

H

R

L_T

Body Dia

Width Across Flats

Width Across Corners

Height

Radius of Fillet

Thread Length for Bolt Lengths

Up to 6"

Over 6"

Max

Max

Min

Max

Min

Max

Min

Max

Min

Basic

Basic

.50

.515

.875

.850

1.010

.969

.364

.302

.03

.01

1.25

1.50

.625

.642

1.062

1.031

1.227

1.175

.444

.378

.06

.02

1.50

1.75

.75

.768

1.250

1.212

1.443

1.383

.524

.455

.06

.02

1.75

2.00

.875

.895

1.438

1.394

1.660

1.589

.604

.531

.06

.02

2.00

2.25

1.00

1.022

1.625

1.575

1.876

1.796

.700

.591

.09

.03

2.25

2.50

1.125

1.149

1.812

1.756

2.093

2.002

.780

.658

.09

.03

2.5

2.75

1.25

1.277

2.000

1.938

2.309

2.209

.876

.749

.09

.03

2.75

3.00

1.375

1.404

2.188

2.119

2.526

2.416

.940

.810

.09

.03

3.00

3.25

1.50

1.531

2.375

2.300

2.742

2.622

1.036

.902

.09

.03

3.25

3.50

1.75

1.785

2.750

2.662

3.175

3.035

1.196

1.054

.12

.04

3.75

4.00

2.00

2.039

3.125

3.025

3.608

3.449

1.388

1.175

.12

.04

4.25

4.50

2.25

2.305

3.500

3.388

4.041

3.862

1.548

1.327

.19

.06

4.75

5.00

2.50

2.559

3.875

3.750

4.474

4.275

1.708

1.479

.19

.06

5.25

5.50

2.75

2.827

4.250

4.112

4.907

4.688

1.869

1.632

.19

.06

5.75

6.00

3.00

3.081

4.625

4.475

5.340

5.102

2.060

1.815

.19

.06

6.25

6.50