Nominal
Size

F

C

H

Width Across
Flats

Width Across Corners

Thickness

Basic

Max

Min

Max

Min

Basic

Max

Min

3/8

9/16

0.562

0.551

0.650

0.628

21/64

0.337

0.320

1/2

3/4

0.750

0.736

0.866

0.840

7/16

0.448

0.427

5/8

15/16

0.938

0.922

1.083

1.051

35/64

0.559

0.535

3/4

1-1/8

1.125

1.088

1.299

1.240

41/64

0.665

0.617

7/8

1-5/16

1.312

1.269

1.516

1.447

3/4

0.776

0.724

1

1-1/2

1.500

1.450

1.732

1.653

55/64

0.887

0.831

1-1/8

1-11/16

1.688

1.631

1.949

1.859

31/32

0.999

0.939

1-1/4

1-7/8

1.875

1.812

2.165

2.066

1-1/16

1.094

1.030

1-3/8

2-1/16

2.062

1.994

2.382

2.273

1-11/64

1.206

1.138

1-1/2

2-1/4

2.250

2.175

2.598

2.480

1-9/32

1.317

1.245

STOCK

Diameters:
Finish:

3/8?? upto 1 1/2?? Black and hot dip galvanized
 Black,Hot Dip Galvanized and Zinc.

APPLICATION

Note

Hex nuts (also referred to as finished hex nuts) are compatible with low carbon steel bolts such as ASTM A307, SAE grade 2,  SAE grade 5 and grade 8 nuts are also available in a finished pattern.  Since hot dip galvanizing typically adds 2.2 to 5 mils of thickness to the threaded portion of a fastener, galvanized hex nuts are tapped oversize to compensate for the corrosion resistant coating on the bolts.
Ningbo Dongxin can supply from above 1 1/2?? upto 4?? hex nuts,including DIN 934,DIN 5587 series hex nuts also.