Self-Locking Hook, Hook Type Self-Locking Hook, Working Load Limit 4,300 lb, Lifting Capability For Lifting, Grade 100, Material Alloy Steel, Hook Opening Width 1 5/8 in, Usable Length 7 3/4 in, Overall Width 3 5/8 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, Compatible Chain Trade Size 9/32 in, Minimum Operating Temperature Not Applicable