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CM Alloy Anchor Shackles Bolt/Nut/Cotter
CM Alloy Anchor Shackles Round Pin
CM Alloy Anchor Shackles Screw Pin
CM Alloy Anchor Shackles Screw Pin
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an exact representation of the product

CM Alloy Anchor Shackles

WLL: 2 to 150 Tons
Sizes: 3/8 to 3-1/2 in.

CM Alloy Shackles are designed with a 5:1 design factor and have a strength rating approximately 50% higher than a comparable-sized carbon shackle and about 25% stronger than super strong shackles. Anchor shackles can be side loaded or used for multiple connections.

  • 3/8” to 2” sizes made in the U.S.A. from domestic (U.S.A.) Special Bar Quality (SBQ) steel having fine grain, reduced sulfur and phosphorus. 2-1/2” to 3-1/2” sizes forged form high-quality German alloy steel at our STB facility in Hamm, Germany and then finished in the U.S.A.
  • Shackles show major deformation before failure
  • CM shackles are forged to shape rather than bent like the competition. This allows for better shackle identification markings and dimensional consistency.
  • Working load limit and traceability codes shown as permanent markings on body
  • All shackles have alloy quenched and tempered pins
  • Available in sizes 3/8" to 3-1/2"
  • Available finishes include powder coated, galvanized or self-colored
  • Shackles meet dimensional and performance requirements of RR-C-271
  • Special testing and certification is available upon request at the time of the order.
  • CM Smart ID RFID technology is available as an option on screw pin anchor shackles sizes 1/2" to 1-3/4" and bolt, nut & cotter shackles sizes 3/4" to 1-3/4".
  • Chart Note: To order products with CM Smart ID RFID technology add "-RF" after the product number in the chart above. RFID-equipped rigging products are not eligible for our In-Stock Guarantee.

High-capacity alloy shackles (2-1/2" to 3-1/2") also feature:

  • Convenient articulating lifting points on the bolt allow for easy rigging and transport.
  • Feature higher average Charpy values than the competition, delivering better performance and exceptional toughness in cold temperature applications.
ALLOY ANCHOR SHACKLES
Size D (in.) Working Load Limit Alloy Material
Origin
Std. Weight  Product Code Dimensions (in.)
Screw Pin Round Pin Bolt, Nut & Cotter
U.S.A. Germany Self Colored Galvanized Orange Powder Coated Self Colored Galvanized Orange Powder Coated Self Colored Galvanized Orange Powder Coated P E W R L B min
3/8 2 X   50 0.30 M648A M648AG M648AP - - - M848A M848AG M848AP 0.44 0.52 0.66 1.00 1.40 1.00
7/16 2.6 X   50 0.50 M649A M649AG M649AP - - - M849A M849AG M849AP 0.50 0.58 0.72 1.15 1.69 1.19
1/2 3.3 X   50 0.75 M650A M650AG M650AP M350A M350AG M350AP M850A M850AG M850AP 0.63 0.70 0.84 1.34 1.94 1.38
5/8 5 X   25 1.30 M651A M651AG M651AP M351A M351AG M351AP M851A M851AG M851AP 0.75 0.83 1.06 1.66 2.41 1.63
3/4 7 X   10 2.30 M652A M652AG M652AP M352A M352AG M352AP M852A M852AG M852AP 0.88 0.95 1.28 1.94 2.84 1.89
7/8 9.5 X   10 3.50 M653A M653AG M653AP M353A M353AG M353AP M853A M853AG M853AP 1.00 1.09 1.44 2.14 3.31 2.06
1 12.5 X   5 5.00 M654A M654AG M654AP M354A M354AG M354AP M854A M854AG M854AP 1.13 1.22 1.72 2.44 3.75 2.52
1-1/8 15 X   Bulk 7.00 M655A M655AG M655AP M355A M355AG M355AP M855A M855AG M855AP 1.25 1.36 1.84 2.66 4.02 2.69
1-1/4 18 X   Bulk 9.50 M656A M656AG M656AP M356A M356AG M356AP M856A M856AG M856AP 1.38 1.52 2.03 3.15 4.63 2.88
1-3/8 21 X   Bulk 12.50 M666A M666AG M666AP M366A M366AG M366AP M866A M866AG M866AP 1.50 1.65 2.25 3.25 5.19 3.25
1-1/2 25 X   Bulk 17.20 M657A M657AG M657AP M357A M357AG M357AP - - - 1.63 1.77 2.41 3.50 5.63 3.50
1-1/2 30 X   Bulk 17.20 - - - - - - M857A M857AG M857AP 1.63 1.77 2.41 3.50 5.63 3.50
1-5/8 29 X   Bulk 23.50 M685A M685AG M685AP M385A M385AG M385AP - - - 1.75 1.88 2.66 3.91 6.13 4.13
1-5/8 35 X   Bulk 23.50 - - - - - - M885A M885AG M885AP 1.75 1.88 2.66 3.91 6.13 4.13
1-3/4 34 X   Bulk 27.70 M677A M677AG M677AP M377A M377AG M377AP - - - 2.00 2.13 2.94 4.06 6.97 4.75
1-3/4 40 X   Bulk 27.70 - - - - - - M877A M877AG M877AP 2.00 2.13 2.94 4.06 6.97 4.75
2 43 X   Bulk 39.00 M658A M658AG M658AP M358A M358AG M358AP - - - 2.25 2.38 3.28 4.51 7.44 5.50
2 50 X   Bulk 39.00 - - - - - - M858A M858AG M858AP 2.25 2.38 3.28 4.51 7.44 5.50
2-1/2 85   X Bulk 109.00 - - - - - - MC860A MC860AG - 2.75 2.99 4.13 6.13 10.48 6.75
3 120   X Bulk 148.00 - - - - - - MC862A MC862AG - 3.25 3.53 5.00 6.56 13.00 7.38
3-1/2 150   X Bulk 265.00 - - - - - - MC864A MC864AG - 3.75 4.06 5.25 8.38 15.00 9.00