My son needs to work on fine mechanical skills and is obsessed with things like wrenches and screwdrivers. I want to build a board of bolts and nuts so he can use a wrench on them, but I don't want the nuts to come off
Any ideas on how to make nuts not come off of bolts after they're on? I was just going to attach some bolts and nuts to a board and let him go crazy but I don't want the nuts to come off for fear of losing them or choking #diy source