Columbus McKinnon

1-1/8" Super Strong Screw Pin Anchor Shackle 12 TON-M655G

SKU: M655G
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Working Load Limit 12 TON
Factor 6:1
Origin USA
SUPER STRONG SCREW PIN SHACKLE — ALLOY STEEL / HEAT TREATED

Super Strong Shackles are rated 17% to 50% stronger than comparable-sized carbon shackles, with a 6:1 design factor throughout the range. All pins are forged from alloy steel, heat treated and tempered for greater strength. Each shackle is marked with size and working load limit.

  • Alloy steel pins — forged, heat treated & tempered
  • 6:1 design factor across all sizes
  • Each shackle marked with size and WLL
  • Manufactured in USA
Pin TypeSCREW PIN
MaterialALLOY STEEL, HEAT TREATED & TEMPERED
Design Factor6 : 1
Size Range3/16" — 2-1/2"
WLL Range1/2 TON — 55 TON
OriginMANUFACTURED IN USA

Working Load Limits by Size

Size (in) WLL (ton) Weight (lb) Screw Pin # Bolt, Nut & Cotter #
3/16 1/2 0.06 M645G
1/4 3/4 0.12 M646G M846G
5/16 1 0.20 M647G M847G
3/8 1-1/2 0.30 M648G M848G
7/16 2 0.50 M649G M849G
1/2 3 0.75 M650G M850G
5/8 4-1/2 1.30 M651G M851G
3/4 6-1/2 2.30 M652G M852G
7/8 8-1/2 3.50 M653G M853G
1 10 5.00 M654G M854G
1-1/8 12 7.00 M655G M855G
1-1/4 14 9.50 M656G M856G
1-3/8 17 12.50 M666G M866G
1-1/2 20 17.20 M657G M857G
1-5/8 24 23.50 M685G M885G
1-3/4 30 27.70 M677G M877G
2 35 39.00 M658G M858G
2-1/2 55 90.50 MC860G

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.


6:1 DESIGN FACTOR │ ALLOY STEEL │ HEAT TREATED Liftgear Houston, Texas

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