Go outside and trim them off?
Or tie some fishing line around them. Drill through the wall in new holes.
Pass fishing line through.
Secure line to biek
The outside of the back wall of my shed looks like an Indiana Jones booby trap such are the numbers screws protruding thanks to the thin wall and me mounting shelves. Taking it as a deterrent to stop people sneaking down the 1ft gap between the shed and the fence.
Take the screws out and replace them with bolts? You could just put a washer and nut on the outside (possibly with a rubber washer and/or a dab of sealant to keep the rain out). That would be stronger and neater.
Go outside and trim them off?
Or tie some fishing line around them. Drill through the wall in new holes.
Pass fishing line through.
Secure line to biek