What to fill bolt holes with

[CarpeDiem 527]

I am going to replace some winches and the bolt patterns are not compatible. 

The deck is plywood.

What's the best way to fill the old holes so that they're best possible for future possibilities... 

I used sone knead it aqua on some old cable holes I had, this seemed to work OK. It's cheap and I probably have plenty left. But wondering if there's a better way. 

Thanks 

 

[wild violet 38]

Just epoxy glue some dowels into the old holes fair up and paint

[wheels 544]

Wild Violet has the proper solution. Wooden Dowel and glue.
Next is to use epoxy filler.
Kneadit does not have much in the way of "wetting" ability. Epoxy with a little more "excess" of liquid will soak into the timber fibres better.

[Psyche 794]

How big are the holes 10mm? I'd just bog them

[whitepointer 34]

Tape underneath hole, then run some epoxy into holes, when nearly cured finish off with epoxy filler and primer

[Black Panther 1,765]

2 minutes ago, whitepointer said:

Tape underneath hole, then run some epoxy into holes, when nearly cured finish off with epoxy filler and primer

That's what I did, no problems. 

[wkavinsky 1]

Definitely fill with epoxy (with filler or without is fine).

It'll be stronger, and more water proof than the original wood.

[jay 3]

You might be able to line up one or more of the old holes with the new hole pattern, reducing the number of new holes needed. If you drill the new holes oversize 1st, then you can epoxy fill the old and new holes at the same time as described above, wait until cured, then re-drill the new holes to correct size taking care to only drill the epoxy fill. This way the new holes are epoxy sealed to stop water getting into the ply. Fairing might not be necessary if the holes are all covered by the new winch.