J-Hook Hook Type J-Hook Working Load Limit 850 lb Lifting Capability For Lifting Grade 80 Material Alloy Steel Material Thickness 5/8 in Hook Opening Width 2 1/2 in Overall Length 10 1/4 in Usable Length 9 in Overall Width 3 3/4 in Eye Inside Diameter 1 in Eye Inside Height 1 in Thread Size Not Applicable Shank Diameter Not Applicable Shank Length Not Applicable Clevis Inside Width Not Applicable Attachment Type Straight Eye Clevis Pin Diameter Not Applicable Markings None