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Shackle - Class 1 Round Pin Chain - Alloy


  • RRC-271D Amend 1 Type IVB, Grade B, 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 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

Outside Diameter of Eye

D

(nominal)

P

(nom)

E

(ref)

W
(nom)

L
(nom)

R
(max)

1/2

0.625

0.718

0.813

1.875

1.375

5/8

0.750

0.843

1.063

2.375

1.875

3/4

0.875

0.968

1.250

2.813

2.125

7/8

1.000

1.109

1.438

3.312

2.375

1

1.125

1.234

1.688

3.750

2.625

1 1/8

1.250

1.375

1.812

4.250

2.875

1 1/4

1.375

1.531

2.031

4.688

3.250

1 3/8

1.500

1.656

2.250

5.250

3.500

 

Size

Working Load Limit WLL (tons)*

Product Code

Painted

UPC 43927-

Galvanized UPC 43927-

Approx Weight Each (lbs)

1/2

3.3

M550A

46149

44965

.60

5/8

5

M551A

46151

44328

1.2

3/4

7

M552A

46153

44329

2.0

7/8

9.5

M553A

46155

46231

3.0

1

12.5

M554A

46157

46232

4.5

1 1/8

15

M555A

46159

46233

6.5

1 1/4

18

M556A

46161

46234

8.6

1 3/8

21

M566A

46167

46235

12.0

 

*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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