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Conforms to Federal Specification RR-C-271D, Type IVA or Type IVB, Grade A, Class 3
Quenched and tempered, with alloy pin
Proof load is 2.2 times working load limit
Ultimate load is 6 times working load limit

Bolt type shackles are typically used on wire rope loops for lifting or towing.

chain-shackle
Unit of Measure
1 

Item #

Nominal Size (in)

WLL (Tons)

A (in)

B (in)

C (in)

D (in)

E (in)

F (in)

I (in)

P (in)

CBS12 N/A 1/2 N/A 2 N/A 0.81 N/A 0.63 N/A 0.5 N/A 1.88 N/A 0.5 N/A 1.19 N/A 1.63 N/A 2.8
CBS58 N/A 5/8 N/A 3.25 N/A 1.06 N/A 0.75 N/A 0.69 N/A 2.38 N/A 0.63 N/A 1.5 N/A 2 N/A 3.53
CBS34 N/A 3/4 N/A 4.75 N/A 1.25 N/A 0.86 N/A 0.81 N/A 2.81 N/A 0.75 N/A 1.81 N/A 2.38 N/A 4.07
CBS78 N/A 7/8 N/A 6 1/2 N/A 1.44 N/A 1 N/A 0.97 N/A 3.31 N/A 0.88 N/A 2.09 N/A 2.81 N/A 4.71
CBS1 N/A 1 N/A 8.5 N/A 1.69 N/A 1.13 N/A 1.06 N/A 3.75 N/A 1 N/A 2.38 N/A 3.19 N/A 5.31
CBS118 N/A 1 1/8 N/A 9 1/2 N/A 1.81 N/A 1.25 N/A 1.25 N/A 4.25 N/A 1.13 N/A 2.69 N/A 3.58 N/A 5.9
CBS114 N/A 1 1/4 N/A 12 N/A 2.03 N/A 1.38 N/A 1.38 N/A 4.69 N/A 1.25 N/A 3 N/A 3.94 N/A 6.51
CBS138 N/A 1 3/8 N/A 13 1/2 N/A 1.5 N/A 1.5 N/A 5.25 N/A 1.38 N/A 3.31 N/A 3.31 N/A 4.38 N/A 7.21
CBS112 N/A 1 1/2 N/A 17 N/A 2.38 N/A 1.63 N/A 1.62 N/A 5.75 N/A 1.5 N/A 3.63 N/A 4.81 N/A 7.73
CBS134 N/A 1 3/4 N/A 25 N/A 2.88 N/A 2 N/A 2.25 N/A 7 N/A 1.75 N/A 4.19 N/A 5.75 N/A 9.05
CBS2 N/A 2 N/A 35 N/A 3.25 N/A 2.25 N/A 2.4 N/A 7.75 N/A 2 N/A 4.81 N/A 6.75 N/A 10.41
CBS212 N/A 2 1/2 N/A 55 N/A 4.13 N/A 2.75 N/A 3.13 N/A 10.5 N/A 2.62 N/A 5.69 N/A 8 N/A 13.56
CBS3 N/A 3 N/A 85 N/A 5 N/A 3.25 N/A 3.62 N/A 13 N/A 3 N/A 6.5 N/A 8.5 N/A 16.5
Unit of Measure
1