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Shackle - Class 1 Round Pin Anchor - Carbon


  • RRC-271D Amend 1 Type IVA, Grade A, Class 1

  • All shackles meet or exceed Federal Specification RRC-271D

  • Working Load Limit and traceability codes shown as permanent marking on body and pin

  • Available in painted, galvanized and self-colored finishes (Dacromate coating upon special request only)

  • All shackles have alloy quenched and tempered pins

  • Shackles made from technically advanced microalloy material

  • Load break tests consistently show microalloy outperforms quenched and tempered carbon material

  • Shock load testing of assemblies at -300oF consistently demonstrate microalloy outperforms quenched and tempered carbon material*

  • Shackles exhibit extreme deformation before failure*

  • Special testing and certification including magnetic particle, proof load, and fatigue test available upon request at time of order

  • Special products engineering available to fit your special lifting, tie down, and pulling needs


*Independent lab verified
Click Here to view Metric Chart
SIZE

DIMENSIONS (INCHES)

SIZE

Diameter of Pin

Diameter of Hole

Width between Eyes

Inside Length

Inside Width at Bow

Outside Diameter of Eye

D

(nominal)

P

(nom)

E

(ref)

W

(nom)

L
(nom)

B
(min)

R
(max)

3/16

0.250

0.307

0.375

0.875

0.562

0.625

1/4

0.312

0.401

0.469

1.125

0.750

0.875

5/16

0.375

0.463

0.531

1.250

0.812

1.000

3/8

0.438

0.531

0.656

1.437

0.937

1.125

7/16

0.500

0.593

0.750

1.689

1.062

1.250

1/2

0.625

0.718

0.813

1.875

1.187

1.375

5/8

0.750

0.843

1.063

2.375

1.500

1.875

3/4

0.875

0.968

1.250

2.813

1.750

2.125

7/8

1.000

1.109

1.438

3.312

2.000

2.375

1

1.125

1.234

1.688

3.750

2.312

2.625

1 1/8

1.250

1.375

1.812

4.250

2.625

2.875

1 1/4

1.375

1.531

2.031

4.688

2.875

3.250

1 3/8

1.500

1.656

2.250

5.250

3.250

3.500

1 1/2

1.625

1.781

2.375

5.750

3.375

3.750

1 5/8

1.750

1.906

2.625

6.250

4.000

4.125

1 3/4

2.000

2.156

2.875

7.000

4.500

4.500

2

2.250

2.406

3.250

7.750

5.250

5.250

 

Size

Working Load Limit WLL (tons)*

Product Code

Painted

UPC 43927-

Galvanized UPC 43927-

Approx Weight Each (lbs)

3/16

1/2

M345

-

40095

.06

1/4

3/4

M346

40100

40099

.12

5/16

1

M347

40105

40104

.20

3/8

1 1/2

M348

40110

40109

.30

7/16

2

M349

40115

40114

.50

1/2

3

M350

40120

40119

.75

5/8

4 1/2

M351

40125

40124

1.3

3/4

6 1/2

M352

40130

40129

2.3

7/8

8 1/2

M353

40135

40134

3.5

1

10

M354

41950

40139

5.0

1 1/8

12

M355

40145

40144

7.0

1 1/4

14

M356

40150

40149

9.5

1 3/8

17

M366

40158

40157

12.5

1 1/2

20

M357

40164

40163

17.2

1 5/8

24

M385

40169

40168

23.5

1 3/4

30

M377

40175

40174

27.7

2

35

M358

40180

40179

39.0

 

*1 ton = 2000 lbs
WARNING
To Avoid Injury
  • Do not exceed working load limit
  • Always follow safe rigging practices
  • Do not shock load or impact load
  • Do not replace pin with other than original equipment parts
  • Always inspect for wear and or damage before use.
  • Replace if damaged or worn
  • Please note side load limitations
  • Do not side load round pin shackles

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