1/2" Eye Self-Locking Hook - Grade 80Grade 80 Eye Self Locking Hook The Grade 80 Eye Self Locking Hook is designed for demanding overhead lifting and rigging applications where enhanced load security is critical. Manufactured from high strength Grade 80 alloy steel, this hook features an automatic self locking mechanism that engages when a load is applied, helping prevent accidental disengagement during lifting operations. The eye style attachment provides greater versatility than clevis