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CM Super Strong round pin chain shackle, galvanized

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Schematic

CM Super Strong 1-1/2" Round Pin Chain Shackle – 40,000 lb WLL – M557G

SKU M557G

$441.39

Use it with

Details

Working Load Limit 20 TON
Factor 5:1
Finish Galv.
SUPER STRONG CHAIN (DEE) SHACKLE — ROUND PIN, GALVANIZED

CM Super Strong Chain Shackles are rated 17% to 50% stronger than carbon shackles of the same size. The dee shape, with straight parallel legs, is made for an in-line pull: joining chain, or connecting one sling to a load. For several slings or an angled pull, use an anchor (bow) shackle.

  • Micro alloy steel body, hardened for strength and ductility
  • Alloy quenched & tempered pin
  • 5:1 design factor (round pin; screw pin and bolt type are 6:1)
  • Shows major deformation before failure
  • WLL and traceability code permanently marked on the body
  • Meets the dimensional requirements, and exceeds the performance requirements, of RR-C-271
Pin TypeROUND PIN WITH COTTER
ShapeDEE (CHAIN)
MaterialMICRO ALLOY STEEL; ALLOY QUENCHED & TEMPERED PIN
FinishGALVANIZED
Design Factor5 : 1
Size Range1/4" — 2"
WLL Range3/4 TON — 35 TON
StandardRR-C-271
Product CodeM557G
DatasheetSuper Strong chain shackles brochure PDF

Working Load Limits by Size

Size (in) WLL (ton) Weight (lb) Round Pin #
1/4 3/4 0.12 M546G
5/16 1 0.20 M547G
3/8 1-1/2 0.30 M548G
1/2 3 0.75 M550G
5/8 4-1/2 1.30 M551G
3/4 6-1/2 2.30 M552G
7/8 8-1/2 3.50 M553G
1 10 5.00 M554G
1-1/8 12 7.00 M555G
1-1/4 14 9.50 M556G
1-3/8 17 12.50 M566G
1-1/2 20 17.20 M557G
1-5/8 24 23.50 M585G
1-3/4 30 27.70 M577G
2 35 39.00 M558G
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Never exceed the rated Working Load Limit. Always follow applicable domestic safety regulations. Inspect before every use — remove from service if deformed, worn, or damaged.

5:1 DESIGN FACTOR │ SUPER STRONG │ GALVANIZED Liftgear Houston, Texas