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                                                              Square Nuts                         ASNI/ASME B18.2.2

1986

Nominal Size

Width Across Flats(F)

Width Across Corners(G)

Thickness(H)

Basic

Max

Min

Max

Min

Basic

Max

Min

1/4

7/16

.438

.425

.619

.554

7/32

.235

.203

5/16

9/16

.562

.547

.795

.721

17/64

.283

.249

3/8

5/8

.625

.606

.884

.802

21/64

.346

.310

7/16

3/4

.750

.728

1.061

.970

3/8

.394

.356

1/2

13/16

.812

.788

1.149

1.052

7/16

.458

.418

5/8

1

1.000

.969

1.414

1.300

35/64

.569

.525

3/4

1-1/8

1.125

1.088

1.591

1.464

21/32

.680

.632

7/8

1-5/16

1.312

1.269

1.856

1.712

49/64

.792

.740

1

1-1/2

1.500

1.450

2.121

1.961

7/8

.903

.847

1-1/8

1-11/16

1.688

1.631

2.386

2.209

1

1.030

.970

1-1/4

1-7/8

1.875

1.812

2.652

2.458

1-3/32

1.126

1.062

 

 

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