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  Finished Hex Nuts   Light Hex (Thin Pattern)
  K Lock Nuts - Shake proof   Standard Pattern (Thin Pattern)
  Hex Jam Nuts   Steel and Stainless (Thin Pattern)
  Heavy Hex Nuts   Nylon Insert Stop Nuts, Light Hex, Grade 8
  Small Pattern Hex Machine Screw Nuts   Serrated Hex Flange Lock Nuts
  Acorn Nuts   Slotted Hex Lock Nuts
  Nylon Insert Stop Nuts (Standard Pattern)   Slotted Hex Castle Lock Nuts
  Light Hex (Standard Pattern)   Square and Hex Machine Screw Nuts
  Standard Pattern (Standard Pattern)   Wing Nuts - Cold Forged
  Steel and Stainless (Standard Pattern)   Wing Nuts - Washer Based
  Nylon Insert Stop Nuts (Thin Pattern)   WELD SCREWS AND WELD NUTS
 

 

 

Finished Hex Nuts - ANSI/ASME B18.2.2

 

  

Nominal Size
or Basic Major
Thread Diameter

F

G

H

 

Width
Across Flats

Width
Across Corners

Thickness

 

Basic

Max

Min

Max

Min

Basic

Max

Min

 

1/4

.2500

7/16

.438

.428

.505

.488

7/32

.226

.212

 

5/16

.3125

1/2

.500

.489

.577

.557

17/64

.273

.258

 

3/8

.3750

9/16

.562

.551

.650

.628

21/64

.337

.320

 

7/16

.4375

11/16

.688

.675

.794

.768

3/8

.385

.365

 

1/2

.5000

3/4

.750

.736

.866

.840

7/16

.448

.427

 

9/16

.5625

7/8

.875

.861

1.010

.982

31/64

.496

.473

 

5/8

.6250

15/16

.938

.922

1.083

1.051

35/64

.559

.535

 

3/4

.7500

1-1/8

1.125

1.088

1.299

1.240

41/64

.665

.617

 

7/8

.8750

1-5/16

1.312

1.269

1.516

1.447

3/4

.776

.724

 

1

1.0000

1-1/2

1.500

1.450

1.732

1.653

55/64

.887

.831

 

1-1/8

1.1250

1-11/16

1.688

1.631

1.949

1.859

31/32

.999

.939

 

1-3/8

1.3750

2-1/16

2.062

1.994

2.382

2.273

1-11/64

1.206

1.138

 

1-1/2

1.500

2-1/4

2.250

2.175

2.598

2.480

1-9/32

1.317

1.245

 

1-5/8

1.6250

2-7/16

2.438

2.356

2.815

2.686

1-25/64

1.429

1.353

 

1-3/4

1.7500

2-5/8

2.625

2.538

3.031

2.893

1-1/2

1.540

1.460

 

2

2.0000

3

3.000

2.900

3.464

3.306

1-23/32

1.763

1.675

 

2-1/4

2.2500

3-3/8

3.375

3.263

3.897

3.719

1-15/16

1.986

1.890

 

2-1/2

2.5000

3-3/4

3.750

3.625

4.330

4.133

2-5/32

2.209

2.105

 

2-3/4

2.7500

4-1/8

4.125

3.988

4.763

4.546

2-3/8

2.431

2.319

 

3

3.0000

4-1/2

4.500

4.350

5.196

4.959

2-19/32

2.654

2.534

 

 

 

 

K Lock Nuts - Shake proof #501-01

 

  

Nominal Size
or Basic Major
Thread Diameter

F

G

H

I

 

Width
Across Flats

Width
Across Corners

Thickness

Washer Diameter

 

Basic

Max

Min

Max

Min

Max

Min

Max

Min

 

4

.1120

1/4

.250

.241

.289

.275

.098

.087

.286

.277

 

5

.1250

1/4

.250

.241

.289

.275

.098

.087

.287

.277

 

6

.1380

5/16

.312

.302

.361

.344

.114

.102

.348

.338

 

6SP

.1380

1/4

.250

.241

.289

.275

.098

.087

.287

.277

 

8

.1640

11/32

.344

.332

.397

.378

.130

.117

.381

.370

 

8SP

.1640

5/16

.312

.302

.361

.344

.114

.102

.381

.370

 

10

.1900

3/8

.375

.362

.433

.413

.130

.117

.406

.395

 

12

.2160

7/16

.438

.423

.505

.482

.161

.148

.506

.494

 

1/4

.2500

7/16

.438

.423

.505

.482

.193

.178

.506

.494

 

5/16

.3125

1/2

.500

.489

.577

.557

.273

.258

.592

.579

 

3/8

.3750

9/16

.562

.551

.650

.628

.385

.365

.665

.651

 

1/2

.5000

3/4

.750

.736

.866

.840

.437

.425

.898

.878

 

Shakeproof is the original writer of the K-Lock specifications.
SP denotes a "small pattern" across the flats. #8SP dimensions are independent of the Shakeproof specifications.

 

 

Grade 2 Nut Properties

Description

A six sided internally threaded fastener with a thickness of (.875 x nominal thread diameter) and the width is (1.5 x nominal thread diameter).

Appication
& Advantaged

The most versatile and widely used nut design. Grade-2 nuts are for use with any low carbon screw or bolt that is not heat treated, with specified minimum tensile strenght of 74,00 psi or less.

Material

A low carbon steel that comforms to the following:
Carbon: .47% maximum, Phosphorus: .12% maximum, Sulfur:.23% maximum

Hardness

Rockwell B68 - C32

 

Steel Hot Dip Galvanized Nut Properties

Description

A six sided internally threaded fastener with a thickness of (.875 x nominal thread diameter) and the width is (1.5 x nominal thread diameter). Made from steel with a galvanic zinc coating.

Appication
& Advantaged

The most versatile and widely used nut design. Grade-2 nuts are for use with any low carbon screw or bolt that is not heat treated, with specified minimum tensile strenght of 74,000 psi or less, and subjected to moisture, salt and other such corrosive conditions.

Material

A low carbon steel that comforms to the following:
Carbon: .47% maximum, Phosphorus: .12% maximum, Sulfur:.23% maximum

Hardness

Rockwell B68 - C32

 

Stainless Steel, 18-8 and 316, Nut Properties

Description

A six sided internally threaded fastener with a thickness of (.875 x nominal thread diameter) and the width is (1.5 x nominal thread diameter). Made from austenitic alloys as described below.

Appication
& Advantaged

Designed to be used with stainless steel screws and bolts with a specified minimum tensile strength equal to or less than the specified proof stress of the mat inf nut. Both types of stainless are corrosion resistant with the 316 stainless having a greater amount of corrosion resistance as well as superior strength at higher temperatures.

Material

18-8: