RoyBoy posted:I always use clear fingernail polish on the threads. Easy to find, easy to use, holds the screw tightly, but not too tightly to remove easily.
This - inexpensive, works great, screws are easily backed out if necessary (great for those pesky screws in eyeglasses, too).
Get the correct parts and fix this correctly - it's survived this long, and will live on another 50 years with corrective repairs and maintenance.