Anchor Shackles


Screw Pin Anchor Shackles allow quick and easy removal of the screw pin and can be useful in applications where the shackle is frequently removed, but not so much in applications where the pin is subject to torque or twisting.

  • These shackles meet requirements of Federal Specification RR-C-271D Amendment 1
  • All shackle pins are forged from alloy steel, heat treated and tempered to give greater strength
  • Available in painted, galvanized and self-colored finishes (Dacromate coating upon special request only)
  • All shackles are marked with size (inches and millimeters) and working load limit in tons
  • Ultimate strength equals 5 times working load limit
  • All bolt, nut & cotter shackles have thread protected ends
  • Galvanized per ASTM A153
  • Standard industry tolerances apply
  • Design factor 5:1

Columbus McKinnon Screw Pin Anchor Shackles

  • Rated for overhead lifting
  • All shackles meet or exceed Federal Specification RRC-271D and ASME B30.26
  • Working Load Limit and traceability codes shown as permanent marking on body and pin
  • All shackles have allow quenched and tempered pins
  • Special testing and certification including magnetic particle, proof load and fatigue test available upon request at time of order
  • Proof tested at 2.2 times the working load limit
  • Ultimate strength equals six times working load limit
  • Do not exceed working load limit
  • Click on part number for additional information and purchase
Part NumberDescriptionWorking Load Limit (ton)Price
M6523/4" Screw Pin Anchor Shackle6.526.24
M6541" Screw Pin Anchor Shackle1053.59
M6561 1/4" Screw Pin Anchor Shackle14104.4
M6571 1/2" Screw Pin Anchor Shackle20156.1
M6771 3/4" Screw Pin Anchor Shackle30270.65


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