Slip Hook Hook Type Slip Hook Working Load Limit 30 000 lb Lifting Capability For Lifting Grade 100 Material Carbon Steel Material Thickness 1 1/2 in Hook Opening Width 4 1/4 in Overall Length 21 3/8 in Usable Length 16 3/4 in Overall Width 10 3/8 in Eye Inside Diameter 4 3/32 in Eye Inside Height 3 3/4 in Shank Diameter Not Applicable Shank Length Not Applicable Clevis Inside Width Not Applicable Attachment Type Swivel Clevis Pin Diameter Not Applicable