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SAE J429 Hex Bolts-NINGBO BOLT

 

SAE J429 Specification

 

SAE J429 Hex Cap Screws

 

SAE J429 Metric Hex Bolts

 

SAE J429 Metric Hex Cap Screws

ASME B18.2.1 Hex Bolts

ASME B18.2.1 Standard Dimensions for Hex Bolts

Nominal Size or Basic product Diameter

Full-Size Body Diameter, E

Width Across Flats, F

Width Across Corners, G

Head Height, H

Radius of Fillet, R

Thread Length for Bolt Lengths, LT

6 in. & Shorter

Over 6 in.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Nom.

Nom.

1/4

0.2500

0.260

0.237

0.438

0.425

0.505

0.484

0.188

0.150

0.03

0.01

0.750

1.000

5/16

0.3125

0.324

0.298

0.500

0.484

0.577

0.552

0.235

0.195

0.03

0.01

0.875

1.125

3/8

0.3750

0.388

0.360

0.562

0.544

0.650

0.620

0.268

0.226

0.03

0.01

1.000

1.250

7/16

0.4375

0.452

0.421

0.625

0.603

0.722

0.687

0.316

0.272

0.03

0.01

1.125

1.375

1/2

0.5000

0.515

0.482

0.750

0.725

0.866

0.826

0.364

0.302

0.03

0.01

1.250

1.500

5/8

0.6250

0.642

0.605

0.938

0.906

1.083

1.033

0.444

0.378

0.06

0.02

1.500

1.750

3/4

0.7500

0.768

0.729

1.125

1.088

1.299

1.240

0.524

0.455

0.06

0.02

1.750

2.000

7/8

0.8750

0.895

0.852

1.312

1.269

1.516

1.447

0.604

0.531

0.06

0.02

2.000

2.250

1

1.0000

1.022

0.976

1.500

1.450

1.732

1.653

0.700

0.591

0.09

0.03

2.250

2.500

1 1/8

1.1250

1.149

1.098

1.688

1.631

1.949

1.859

0.780

0.658

0.09

0.03

2.500

2.750

1 1/4

1.2500

1.277

1.223

1.875

1.812

2.165

2.066

0.876

0.749

0.09

0.03

2.750

3.000

1 3/8

1.3750

1.404

1.345

2.062

1.994

2.382

2.273

0.940

0.810

0.09

0.03

3.000

3.250

1 1/2

1.5000

1.531

1.470

2.250

2.175

2.598

2.480

1.036

0.902

0.09

0.03

3.250

3.500

1 5/8

1.6250

1.658

1.591

2.438

2.356

2.815

2.616

1.116

0.978

0.09

0.03

3.500

3.750

1 3/4

1.7500

1.785

1.716

2.625

2.538

3.031

2.893

1.196

1.054

0.12

0.04

3.750

4.000

1 7/8

1.8750

1.912

1.839

2.812

2.719

3.248

3.099

1.276

1.130

0.12

0.04

4.000

4.250

2

2.000

2.039

1.964

3.000

2.9000

3.464

3.306

1.388

1.175

0.12

0.04

4.250

4.500

2 1/4

2.2500

2.305

2.214

3.375

3.262

3.897

3.719

1.548

1.327

0.19

0.06

4.750

5.000

2 1/2

2.5000

2.559

2.461

3.750

3.625

4.330

4.133

1.708

1.479

0.19

0.06

5.250

5.500

2 3/4

2.7500

2.827

2.711

4.125

3.988

4.763

4.546

1.869

1.632

0.19

0.06

5.750

6.000

3

3.000

3.081

2.961

4.500

4.350

5.196

4.959

2.060

1.815

0.19

0.06

6.250

6.500

3 1/4

3.2500

3.335

3.210

4.875

4.712

5.629

5.372

2.251

1.936

0.19

0.06

6.750

7.000

3 1/2

3.5000

3.589

3.461

5.250

5.075

6.062

5.786

2.380

2.057

0.19

0.06

7.250

7.500

3 3/4

3.7500

3.858

3.726

5.625

5.437

6.495

6.198

2.572

2.241

0.19

0.06

7.750

8.000

4

4.000

4.111

3.975

6.000

5.800

6.928

6.612

2.764

2.424

0.19

0.06

8.250

8.500

 

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