Kitchen Aid Waste disposal plug

thingiverse

Recently, my cousin asked for help repairing her kitchen waste disposal unit plug. The plug features a magnet that activates the unit when fitted, presumably to prevent accidents while disposing of food down the drain. Unfortunately, the manufacturer no longer produces these plugs, and hers had broken off where the aluminium alloy handle meets the nylon body. To solve this issue, I drilled out the handle and tapped an M5 thread into it. Next, I installed a stainless steel screw (M5 x 40mm) with some loctite and sawed off the head. The original plug had a slotted hole for the handle stem, secured by a small dowel through the body. However, tapping out a thread was unsuccessful, so I designed a new threaded hole using modeling software to accommodate the M5 screw on the handle. Once tightened, a 2mm drill and drift allowed me to reinsert the original pin, ensuring the screw won't come loose when twisting the plug into the sink's drain opening.