Shank Hook Hook Type Shank Hook Working Load Limit 10 000 lb Lifting Capability Not for Lifting Grade 40 Material Alloy Steel Hook Opening Width 1 3/8 in Usable Length 3 1/4 in Eye Inside Diameter Not Applicable Eye Inside Height Not Applicable Thread Size Not Applicable Shank Diameter 1 5/32 in Shank Length 3 1/4 in Clevis Inside Width Not Applicable Attachment Type Unthreaded Shank Clevis Pin Diameter Not Applicable Compatible Chain Grade 43