Nominal Size, Inches

E

F

G

B

H

L_T

Body Dia

Width Across Flats

Width Across Corners

Flange

Ht

Thread Length

For Screws with

L up to 6"

For Screws with

L > 6"

Max

Min

Max

Min

Max

Min

Max

Max

Basic

Basic

.250

.250

.245

.375

.367

.433

.409

.56

.28

.750

1.00

.3125

.3125

.3065

.500

.489

.577

.548

.68

.32

.875

1.125

.375

.375

.369

.5625

.551

.650

.618

.81

.39

1.00

1.25

.4375

.4375

.4305

.625

.612

.722

.685

.93

.46

1.125

1.375

.500

.500

.493

.75

.736

.866

.825

1.07

.51

1.25

1.50

.5625

.5625

.5545

.8125

.798

.938

.895

1.19

.57

1.375

1.625

.625

.625

.617

.9375

.922

1.083

1.034

1.33

.62

1.50

1.75

.75

.75

.741

1.125

1.10

1.299

1.234

1.59

.73

1.75

2.00