Clevis grab hook is designed for use with transport chain. Alloy fabrication makes it excellent for heavy duty applications, our grab hooks for tie down use features a non-cradle profile so it fits through the rub rail of a flatbed trailer. Not approved for overhead lifting due to the exposed cotter pin. Clevis tow/binder grab hook also available in forged grade 80: 5/16" Clevis Grab Hook-Grade 80. California Residents: WARNING