CM 40608 STEEL 6 TON HOOK 640- 158 [D3B1]. This came from a local supplier that closed. These hooks look to be old stock but new. This would likely work on any CM 6 ton hoist or chain fail as it mounts on the chain. If you have any questions at all feel free to ask.
40608 -- Columbus McKinnon CM -- LOWER HOOK with LATCH 6 TON 640- 158. Please check the pictures to verify anything stated in the ad. The item "CM 40608 STEEL 6 TON HOOK 640- 158 D3B1" is in sale since Wednesday, September 27, 2017. This item is in the category "Business & Industrial\Material Handling\Hoists, Winches & Rigging\Cranes & Hoists\Other Cranes & Hoists".
The seller is "jspec1" and is located in Farmington, Michigan. This item can be shipped worldwide.