Locking Hook, Hook Type Self-Locking Hook, Working Load Limit 5,700 lb, Lifting Capability For Lifting, Grade 100, Material Alloy Steel, Hook Opening Width 1 3/8 in, Usable Length 7 3/8 in, Eye Inside Diameter 1 13/32 in, Eye Inside Height 1 1/8 in, Shank Diameter Not Applicable, Shank Length Not Applicable, Clevis Inside Width Not Applicable, Attachment Type Swivel, Clevis Pin Diameter Not Applicable, Compatible Chain Grade 100, Hardware Included Bushing, Finish Powder Coated, Color Blue