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CM Hammerlok Coupling Link
The above picture may not be
an exact representation of the product

CM Hammerlok Coupling Link
Herc-Alloy 800

WLL: 2,100 to 72,300 lbs.
Sizes: 7/32 to 1-1/4 in.

Constructed of drop forged alloy steel and used primarily in the construction of overhead lifting slings. Specifically used for connecting the chain branches to the master link and to the hook attachments. Dual-rated Hammerloks® meet the strength levels of Grade 80 and 100.

  • Used for overhead lifting slings to connect chain branches to the master link and the hook to attachments.
  • Constructed of drop forged alloy steel
  • Can be used with Grade 80 chain
  • Must be matched to chain size
  • Do not use for chain repair or splicing
  • Meets ASTM A952 standards.
  • Design factor 4:1
Hammerlok® herc-alloy 800®
Size (in) Working Load Limit (lbs) Completed Unit Load Pin Kit Dimensions (in)
Product Code Weight (lbs) Standard Package Product Code Weight (lbs) A B C D E F G
7/32 2,100 664021-2 0.12 36 R664021-2 0.01 0.25 0.25 1.40 0.50 0.58 1.21 0.44
9/32 3,500 664028-2 0.26 36 R664028-2 0.02 0.34 0.31 1.94 0.75 0.70 1.51 0.56
3/8 7,100 664038-2 0.59 36 R664038-2 0.05 0.48 0.50 2.41 0.88 0.91 2.09 0.80
1/2 12,000 664050-2 1.42 24 R664050-2 0.12 0.66 0.70 3.51 1.29 1.41 2.96 1.15
5/8 18,100 664062-2 2.35 12 R664062-2 0.20 0.78 0.81 4.06 1.50 1.70 3.52 1.40
3/4 28,300 664075-2 3.67 12 R664075-2 0.30 0.96 0.94 4.78 1.80 1.97 4.11 1.71
7/8 34,200 664089-2 5.98 6 R664089-2 0.40 1.16 1.05 5.25 1.97 2.09 4.95 1.88
1 47,700 664100-2 9.47 - R664100-2 0.70 1.32 1.25 6.00 2.31 2.37 5.87 2.33
1-1/4 72,300 664125-2 16.61 - R664125-2 1.20 1.57 1.53 6.81 2.17 2.98 7.04 2.67