These latches will not work on new N style Cosby Hooks.
Crosby SS-4055 3/4TC & 1TA Latch Kit - #1090027
Latch Kits for Rigging Hooks from Bishop Lifting
Crosby crosby ss4055 3/4tc-1ta hook latch (1090027)
Crosby Ss4055 3/4Tc-1Ta Hook Latch (1090027) : Industrial & Scientific
LINGUET DE SECURITE EN TOLE CROSBY SS4055
7 ton Alloy Crosby S-4320AN Hook Latch Kits
Crosby SS-4055 3/4TC & 1TA Latch Kit - #1090027
Latch Kits for Rigging Hooks from Bishop Lifting
LINGUET DE SECURITE EN TOLE CROSBY SS4055