I have a Parker Seal 21 (No.99)
On the foredeck , on each side near the mast, are running Bloch units. They have 3 blocks in each unit and used for reefing lines et al.
Does anyone know how they are attached to the deck as it looks like they are only screws that I would have thought was not strong enough.
Is there something hiding under the headlining inside the boat.

Click to View Image0 View(s)