The grade 80 clevis shortening claws with safety pin TWN 0851/1 are used to adjust the strand lengths of chain slings, lifting and lashing chains. The clevis design enables the direct attachment to the lifting chain. The safety pin prevents unintentional detachment of the chain. The manufacturing and testing requirements comply with the DIN EN 1677-1 and DIN 5692. The shortening claws have been tested in interaction with lifting chain. The chain pockets ensure a particularly tight fit for the inserted chain link. The safety bolt enables the use in lashing chains according to the DIN EN 12195-3.