Screws enter 3rd dimension when servicing impeller? We have you covered with this set of corrosion and rust proof stainless steel screws to get your canister back up and running. Fluval FX6 FX4 motor screws, set of 4 screws to attach motor assembly to canister. Same day shipping standard. Expedited available just send us a message. Thanks for looking.

Sorry but shipping is out of my control, I hate to do it I’d rather just not charge anything and put an 85 cent stamp on it but I have no control over tracking or making sure they get to you if I just put them in the mail.