The grade 100 clevis self-locking hooks TWN 1837 are used to assemble chain slings and are often used in the construction industry. The clevis design enables the direct attachment to the chain strands. When the hooks are under load, they lock automatically. They may only be reopened manually when the hooks are not under load anymore.
The manufacturing and testing requirements comply with the DIN EN 1677-3 under consideration of the grade 100 load capacities.
