Yes, hubs are hexagon to match the axle. Previous owner cut (2) long barrel nuts in half & welded each half on either side of the split (across the split) in the hub (after drilling the threads out of one of the halves). Same on the split, 180 deg. across the hub. He then inserted a bolt through the drilled out half & into the threaded half & same on other sdie. Tightening the bolts squeezes the hub together around the axle. However, he didn't leave enough gap between the barrel nut halves when he welded them to the hub & as a result it can't be squeezed tight enough. Going to cut/grind a larger gap between the nut halves so it will squeeze tighter. If it works, I'll do the other side. It's still a virgin & hasn't been messed with. Should I get the orange p[aint from the dealer or will Canadian Tire have something? Sprayed my Husquavarna lawn tractor with "Pumpkin" orange - stuff was meant to paint outdoor plastic (wood, metal) lawn furniture. Not a high gloss but tough paint & dried as fast as lacquer.