Shackle Dee / Segel D
Chain shackles, also referred to as D shackles, have a D-shaped bow that is narrower than anchor shackles. Because these shackles are designed and rated for in-line tension, they should not be side loaded, as side loading can twist or bend the bow of the shackle.
When using a chain shackle, the center line of the load should always coincide with the center line of the shackle when in use.