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ASME B18.2.6 Heavy Hex Structural bolts, Inch Series-NINGBO BOLT

 

ASTM A325 Specification

 

ASTM A325M Metric Heavy Hex Structural Bolts

 

 

 

 

 

Dimensions of ASME B18.2.6 Heavy Hex Structural 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 LT

Transition

 Thread Length Y

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Ref

Ref

1/2

0.5000

0.515

0.482

0.875

0.850

1.010

0.969

0.323

0.302

0.031

0.009

1.00

0.19

5/8

0.6250

0.642

0.605

1.062

1.031

1.227

1.175

0.403

0.378

0.062

0.021

1.25

0.22

3/4

0.7500

0.768

0.729

1.250

1.212

1.443

1.383

0.483

0.455

0.062

0.021

1.38

0.25

7/8

0.8750

0.895

0.852

1.438

1.394

1.660

1.589

0.563

0.531

0.062

0.031

1.50

0.28

1

1.0000

1.022

0.976

1.625

1.575

1.876

1.796

0.627

0.591

0.093

0.062

1.75

0.31

1 1/8

1.1250

1.149

1.098

1.812

1.756

2.093

2.002

0.718

0.658

0.093

0.062

2.00

0.34

1 1/4

1.2500

1.277

1.223

2.000

1.938

2.309

2.209

0.813

0.749

0.093

0.062

2.00

0.38

1 3/8

1.3750

1.404

1.345

2.188

2.119

2.526

2.416

0.878

0.810

0.093

0.062

2.25

0.44

1 1/2

1.5000

1.531

1.470

2.375

2.300

2.742

2.622

0.974

0.902

0.093

0.062

2.25

0.44

 

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Address:Panjiashan, Xiepu Town,

Zhenhai, Ningbo, China

TEL: 86-574-86231358

FAX: 86-574-86231338

EMAIL: bolt@ningbo-bolt.com

 

 

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