Not true. The Shackle pin goes through the rode/chain link. This allows the shackle to rotate on the shank, so the shackle is not side loaded. People will use two shackles if they can't get the shackle pin through the chain.When you use the shackle, do NOT forget to wire tie the shackle pin to prevent it from loosening. This is called "seizing". Use Stainless Steel or Monel (nickle) wire only. The Shackle pin goes thru the slot in the shank of the anchor, just in case people did not know this.