Ernesto N Casselberry , FL June 08, 2019 Appliance: Whirlpool Rangehood UMV1160CW2 Whirlpool Microwave Umv1160cw2: I ordered the plate mounting and the top screw, no problem. How to replace Microwave Top Mounting Screw. I installed the plate mounting on the wall, and the without any problem. The plate mounting was the right one for the job. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours