CM super strong anchor shackles

  • These shackles have higher working load limits than specified by Federal Specifications.
  • All shackle pins are forged from alloy steel, heat treated and tempered to give greater strength.
  • All shackles are marked with size (inches and millimeters) and working load limit in tons.
  • Ultimate strength equals 6 times working load limit. Proof load equals 2.2 times working load limit.
  • All bolt, nut & cotter shackles have thread protected ends.
  • When ordering, specify galvanized (G) or painted (P).
  • Galvanized per ASTM A153.
  • Painted shackles are orange.
  • Ton = 2,000 lbs. (3⁄16″ – 2″), 2,200 lbs. (21⁄2″ – 31⁄2″).
  • Standard industry tolerances apply.
  • Built-in Distortion Detectors (3⁄16″ – 2″).

Screw Pin Type                                                            Round Pin Type                                                     Bolt & Nut Type

Working Load Limit (tons)

Size (In) Carbon Micro Alloy All Alloy Carbon Micro Alloy All Alloy Carbon Micro Alloy All Alloy Weight (Lbs)
3/16 1/3 1/2
1/3 1/2



.06
1/4 1/2 3/4
1/2 3/4



.12
5/16 3/4 1
3/4 1



.20
3/8 1 1 1/2 2 1 1 1/2



.30
7/16 1 1/2 2 2 5/8 1 1/2 2



.50
1/2 2 3 3 1/3 2 3 3 1/3 2 3 3 1/3 .75
5/8 3 1/4 4 1/2 5 3 4 1/2 5 3 4 1/2 5 1.3
3/4 4 3/4 6 1/2 7 4 3/4 6 1/2 7 4 3/4 6 1/2 7 2.3
7/8 6 1/2 8 1/2 9 1/2 6 1/2 8 1/2 9 1/2 6 1/2 8 1/2 9 1/2 3.5
1 8 1/2 10 12 1/2 8 1/2 10 12 1/2 8 1/2 10 12 1/2 5
1 1/8 10 12 15 10 12 15 10 12 15 7
1 1/4 12 14 18 12 14 18 12 14 18 9.5
1 3/8 13 1/2 17 21 13 1/2 17 21 13 1/2 17 21 12.5
1 1/2 17 20 25 17 20 25 17 20 30 17.2
1 5/8 20 24 29 20 24 29 20 24 35 23.5
1 3/4 25 30 34 25 30 34 25 30 40 27.7
2 35 35 43 35 35 43 35 35 50 39
2 1/2 55




55
80 90
3 85




85
110 237
3 1/2 120




120
140 242

Dimensions (inches) apply to all styles of anchor shackles

Size Diam of Pin Width Between Eyes Inside Length Inside Width at Bow (min) Outside Diam. of Eye (max) Approx Weight Each (lbs)
P W L B R
3/16 1/4 3/8 1 7/8 5/8 5/8 .06
1/4 5/16 15/32 1 1/8 3/4 7/8 .12
5/16 3/8 17/32 1 1/4 1 3/16 1 .20
3/8 7/16 21/32 1 7/16 1 5/16 1 1/8 .30
7/16 1/2 3/4 1 11/16 1 1/16 1 1/4 .50
1/2 5/8 13/16 1 7/8 1 3/16 1 3/8 .75
5/8 3/4 1 1/16 2 3/8 1 1/2 1 7/8 1.3
3/4 7/8 1 1/4 2 13/16 1 3/4 2 1/8 2.3
7/8 1 1 7/16 3 5/16 2 2 3/8 3.5
1 1 1/8 1 11/16 3 3/4 2 5/16 2 5/8 5.0
1 1/8 1 1/4 1 3/16 4 1/4 2 5/8 2 7/8 7.0
1 1/4 1 3/8 2 1/32 4 11/16 2 7/8 3 1/4 9.5
1 3/8 1 1/2 2 1/4 5 1/4 3 1/4 3 1/2 12.5
1 1/2 1 5/8 2 3/8 5 3/4 3 3/8 3 3/4 17.2
1 5/8 1 3/4 2 5/8 6 1/4 4 4 1/8 23.5
1 3/4 2 2 7/8 7 4 1/2 4 1/2 27.7
2 2 1/4 3 1/4 7 3/4 5 1/4 5 1/4 39.0

For More information, please visit
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