Self-Locking Hook, Hook Type Self-Locking Hook, Working Load Limit 4,300 lb, Lifting Capability For Lifting, Grade 100, Material Alloy Steel, Material Thickness 1 1/32 in, Hook Opening Width 1 5/8 in, Usable Length 5 1/2 in, Overall Width 3 5/8 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 Eye, Clevis Pin Diameter Not Applicable, Markings None