Removing seriously rusted bolts?
The slats are deteriorated and if I can't rehab them I will look for a hardwood pallet to repurpose.
The problem I'm facing is that the 1/4" steel bolts attaching the slats have rusted. I will replace these with stainless steel bolts, but I first need to remove the rusted bolts, without damaging the frame or further damaging the wood. The other two links show the two sides of the bolts. I think these are beyond loosening with WD-40.
The best I can think of is to grasp the back end of the bolt with a locking plier and drill through the head with a 1/4" bit. If you know of a better method, I'd like to hear.
Another question is, once I have this bench rehabed, it will be sitting where it gets exposure to the sun for most of the day. What is the best clear coating that I can apply to preserve the wood under this circumstance?