i have a bolt for my bowl(pretty ghetto lol). the thing is that no pen will fit it, its too big for a pen. i keep searching around the house but i cant find anything. i cant get anything around here because there all gay about being underage, any ideas?
Go to a hardware store and pick up something else. try the plumbing section. stay away from copper/aluminum. try to get steel maybe even brass. if your making a bong stay away from PVC. have fun with your creation.
also, i dont know what your using for a bowl but i dont think its possable to use a bolt. i think you just got your hardware terms confused. this is a bolt.