Nominal Size, Inches

E

C

F

G

H

J

K

L_T

Body Dia Min (Max Equal to Nom Size)

Flange

Width Across Flats

Width Across Corners

Head Height

Wrench-ing Height

Flange Thick-ness

Thread Length

Max

Min

Max

Min

Min

Max

Min

Min

Basic

.250

.2435

.375

.365

.252

.244

.278

.260

.15

.058

1.00

.3125

.3053

.469

.457

.315

.306

.348

.312

.18

.074

1.125

.375

.3678

.562

.550

.377

.368

.420

.375

.21

.095

1.25

.4375

.4294

.656

.642

.438

.429

.489

.438

.26

.109

1.375

.500

.4919

.750

.735

.502

.493

.562

.500

.29

.129

1.50

.5625

.5538

.844

.828

.564

.555

.633

.563

.33

.145

1.625

.625

.6163

.938

.921

.627

.618

.705

.625

.36

.166

1.75

.750

.7406

1.125

1.107

.752

.743

.847

.750

.44

.200

2.00

.875

.8647

1.312

1.293

.877

.866

.987

.875

.51

.234

2.25

1.00

.9886

1.50

1.479

1.003

.991

1.13

1.00

.60

.268

2.50

1.125

1.1086

1.688

1.665

1.128

1.115

1.271

1.125

.66

.310

2.75

1.25

1.2336

1.875

1.852

1.253

1.24

1.414

1.25

.73

.350

3.00

1.375

1.3568

2.062

2.038

1.378

1.365

1.556

1.375

.80

.392

3.25

1.50

1..4818

2.25

2.224

1.503

1.489

1.697

1.50

.87

.433

3.50