HEX LAG SCREWS

HEX LAG SCREWS

HEAD DIMENSIONS

All Dimensions in Inches

Nominal Size of Basic Product Diameter

Body or Shoulder Dia.

Width Across Flats

Width Across Corners

Height

Shoulder Length

Threads per Inch

Max.

Min.

Basic

Max.

Min.

Max.

Min.

Basic

Max.

Min.

Min.

10

0.1900

0.199

0.178

9/32

0.281

0.271

0.323

0.309

1/8

0.140

0.110

0.094

11

1/4

0.2500

0.260

0.237

7/16

0.438

0.425

0.505

0.484

11/64

0.188

0.150

0.094

10

5/16

0.3125

0.324

0.298

1/2

0.500

0.484

0.577

0.552

7/32

0.235

0.195

0.125

9

3/8

0.3750

0.388

0.360

9/16

0.562

0.544

0.650

0.620

1/4

0.268

0.226

0.125

7

7/16

0.4375

0.452

0.421

5/8

0.625

0.603

0.722

0.687

19/64

0.316

0.272

0.156

7

1/2

0.5000

0.515

0.482

3/4

0.750

0.725

0.866

0.826

11/32

0.364

0.302

0.156

6

5/8

0.6250

0.642

0.605

15/16

0.938

0.906

1.083

1.033

27/64

0.444

0.378

0.312

5

3/4

0.7500

0.768

0.729

1-1/8

1.125

1.088

1.299

1.240

1/2

0.524

0.455

0.375

4-1/2

7/8

0.8750

0.895

0.852

1-5/16

1.312

1.269

1.516

1.447

37/64

0.604

0.531

0.375

4

1

1.0000

1.022

0.976

1-1/2

1.500

1.450

1.732

1.653

43/64

0.700

0.591

0.625

3-1/2

1-1/8

1.1250

1.149

1.098

1-11/16

1.688

1.631

1.949

1.859

3/4

0.780

0.658

0.625

3-1/4

1-1/4

1.2500

1.277

1.223

1-7/8

1.875

1.812

2.165

2.066

27/32

0.876

0.749

0.625

3-1/4