Safety Release Hooks

The hook has a unique design giving a high degree of operational safety, which resulted in THE SEATRADE AWARD in 1989.

Re-tested and Refurbished Hooks

Please notice that Thanner does not offer to sell new hooks, only re-tested and refurbished hooks are available. All up to standards.

The hook has a unique design giving a high degree of operational safety, which resulted in THE SEATRADE AWARD in 1989.

The hook fulfils the rules of IMO resolution 689 and module B of the Directive for release hooks

One person can handle the hook due to low weight and easy operation.

Activating the hook for OFF-LOAD release is done by one hand, the carried equipment is released automatically, when waterborne. The activating force is independent of the weight of the equipment.

The function of the hook is based on two principles.

Holding is based on friction, which means that more weight is more safety.
Loading is a snap system which grips and locks the male part. There is no doubt about whether the loading is safe or not.

The hook has main service intervals of 5 years. After this period it must be re-tested and re-certified to ensure safety at the Manufacturer or an authorised service station.

Product Range

Part numbers

Safety release hook for davit launched inflatable life raft.
Weight: Hook=4.3kg (boat part) Male part=2.3 kg (raft part)

Download PDF documentation

Safety release hook for inflatable rescue boats.
Weight: Hook= 4.3kg (crane part) Male part= 2.3kg (boat part)

Download PDF documentation

Safety release hook for inflatable rescue boats
Weight: Hook=4.3kg (boat part) Male part= 2.3kg (crane part)

Download PDF documentation

Certifcates & Instructions