ShoalDiverSA
Contributor
Went to the local fastener specialist yesterday. I purchased some 5x16mm socket head button screws and 5mm internal star washers. I removed the shackle pins last night and replaced them with the new hardware. They fit perfectly. The length of the screws is spot-on for the amount that the shackles have been deformed.
How it all fits together
The finished product
This has turned out very neatly (IMO) and I would recommend using the materials I have mentioned for Mares post-type fins, as they are off-the-shelf components. They are also really reasonably priced. Even if 4mm shackles are used, the pins could be replaced with the button head screws as they give a much neater finish. In fact, the combo looks so neat now, that it would have been better aesthetically to mount them the other way round (screw heads facing up). But I'll be leaving that for the next pair I modify .
Cheers,
Andrew
How it all fits together
The finished product
This has turned out very neatly (IMO) and I would recommend using the materials I have mentioned for Mares post-type fins, as they are off-the-shelf components. They are also really reasonably priced. Even if 4mm shackles are used, the pins could be replaced with the button head screws as they give a much neater finish. In fact, the combo looks so neat now, that it would have been better aesthetically to mount them the other way round (screw heads facing up). But I'll be leaving that for the next pair I modify .
Cheers,
Andrew