Craig H Robbinsdale , MN August 09, 2023 Appliance: Whirlpool Mixer K5SS Whirlpool Mixer K5ss: Lost part thumb screw and cap hub. How to replace Stand Mixer Attachment Thumb Screw. I'm sorry I don't remember the name of the service person who helped me with my order. She is exceptional. She knew exactly what I was looking for. I did not have to go back to your online order.. She took all my information and placed for me. I said "it is nice to talk to someone who knows exactly what to do" I thank you very much. EXCEPTIONAL! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes