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Heavy Hex Bolts
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Heavy Hex Bolts


Heavy Hex Bolts
Heavy Hex Bolts

A low carbon steel Hex Head Bolt with a wider head than that of a standard Hex bolt. It offers greater wrenching area than standard Hex Machine bolts for use in heavy duty industrial work.

 


Bolt Diameter

D

F

C

H

Body Diameter

Width Across Flats

Width Across Corners

Height

Max

Basic

Max

Min

Max

Min

Basic

Max

Min

1/2

0.515

7/8

0.875

0.850

1.010

0.969

11/32

0.364

0.302

5/8

0.642

1-1/16

1.062

1.031

1.227

1.175

27/64

0.444

0.378

3/4

0.768

1-1/4

1.250

1.212

1.443

1.383

1/2

0.524

0.455

7/8

0.895

1-7/16

1.438

1.394

1.660

1.589

37/64

0.604

0.531

1

1.022

1-5/8

1.625

1.575

1.876

1.796

43/64

0.700

0.591

1-1/8

1.149

1-13/16

1.812

1.756

2.093

2.002

3/4

0.780

0.658

1-1/4

1.277

2

2.00

1.938

2.309

2.209

27/32

0.876

0.749

1-3/8

1.404

2-3/16

2.188

2.119

2.526

2.416

29/32

0.940

0.810

1-1/2

1.531

2-3/8

2.375

2.300

2.742

2.622

1

1.036

0.902

1-3/4

1.785

2-3/4

2.750

2.662

3.175

3.035

1-5/32

1.196

1.054

2

2.039

3-1/8

3.125

3.025

3.608

3.449

1-11/32

1.388

1.175

2-1/4

2.305

3-1/2

3.500

3.388

4.041

3.862

1-1/2

1.548

1.327

2-1/2

2.559

3-7/8

3.875

3.750

4.474

4.275

1-21/32

1.708

1.479

Dimensional specifications per ASME B18.2.1

STANDARD THREAD LENGTH

Bolt lengths ≤ 6”:
Bolt lengths > 6”:

Thread length = (2 X diameter) + 1/4”
Thread length = (2 X diameter) + 1/2”
 





 

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