For bolt holes in wood, is there any issue with metal contacting wood? Do I need to treat the hole with varnish before inserting the bolt? Thank you.
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For bolt holes in wood, is there any issue with metal contacting wood? Do I need to treat the hole with varnish before inserting the bolt? Thank you.
This cadmium-plated bolt was installed through the wooden structure of my Fly Baby in about 1978. This picture was taken ~35 years later.
http://www.bowersflybaby.com/bolt.jpg
So, yes, you need to varnish the holes before sticking in the bolts.
Ron Wanttaja
Thanks! The photo sure makes the point.