Mounting threaded anchors in step pad of Classic 13?

[pcrussell50]

My 1986 13 Sport came with a small trolling motor whose mount was held in place by 3 lag bolts screwed through the glass and into the foam. Since I didn't want the trolling motor, I took out the lag screws and filled the holes with bathtub caulk to keep water out.

Now I took up fishing and want to mount the trolling motor again, but rather than lag bolts, I'd prefer to put in some kind of flush anchors, so I can take off the trolling motor with proper threaded bolts.

Since it's a puny little trolling motor, it almost seems as if I could use those plastic, auger-threaded, drywall anchors used for hanging pictures, maybe with some 5200 or 4200 to seal and provide extra strength?

Any other ideas?

-Peter

[Don McIntyre - MI]

I've had success in mounting a barrel bolt (example below):

http://www.grainger.com/product/ACCURATE-MFD-PRODUCTS-Barrel-Bolt-WP73988/_/N-8jr/Ntt-Bolt?adgrpID=19672347914&kwdID=%2Bbolt&s_kwcid=AL!2966!3!84146711474!b!!g!!%2Bbolt&sst=subset&ts_optout=true&s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/2JGU9_AS01?$smthumb$

Flush to the deck. I drilled a large enough hole to insert the barrel portion. Bent a nail 90 degrees and spun it around inside the hole with a drill, and vacuumed out the now chopped up foam. Mixed and poured a slow setting epoxy into the hole and placed the barrel bolt almost flush into the deck. By expanding the area to fill with epoxy, I had a larger area of contact for the epoxy to adhere to on the underside of the deck.

[pcrussell50]

Thanks, Don.

Anyone else?