Wendy M Kenmore , WA December 18, 2015 The plastic part of the thumb screw on my kitchenaid mixer broke Found the part I needed on the internet. Checked Amazon and then went directly to AppliancePartsPros.com to order my replacement screw. I was delighted with the price, the prompt delivery and great customer service! Thank you! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes