I forgot to mention that when you get the new ratchet the screw has a captive square tap on it so you can knock the exiting one into the bar and don’t worry about fishing it out. I ordered 2… I figured if 1 was weakened other one prob was as well and who knows when they might discontinue them. I do not ratchet my wheels, I unlock them rotate my quilt and then lock them back into a tooth. I have a 9” brother 1500P so I roll a lot and I am afraid the plastic won’t take the abuse of a lot of ratcheting. Also I found adding a rubber washer on the knobs you tighten to raise and lower the bars puts a lot less stress on the hardware. Trying to tighten metal on metal takes more force. I wore out the low grade hardware and replaced it with grade 4 hardware which can take more abuse. I have to try to keep this frame alive as long as I can.