Self-Locking Hook Hook Type Self-Locking Hook Working Load Limit 4 560 lb Lifting Capability For Lifting Grade 100 Material Alloy Steel Material Thickness 13/16 in Hook Opening Width 1 1/2 in Overall Width 3 1/2 in Eye Inside Diameter 1 3/4 in Eye Inside Height 1 1/2 in Shank Diameter Not Applicable Shank Length Not Applicable Clevis Inside Width Not Applicable Attachment Type Swivel Clevis Pin Diameter Not Applicable Markings Deformation Markings Maximum Angle Markings