I have some late 70's doors and one is missing a threshold insert (the adjustable wood kind), anybody know of where one could by just the "wood strip" that goes in and screws down (there is a metal piece that sticks up into the wood, though you can't see it)?
They have about 4 screws that go down into them?
Best Answer
That looks like an "adjustable height" threshold, whereas the "strip" can be raised and lowered using the large screws seen in your picture. Unfortunately, there are many manufacturers (both foreign and domestic, long gone and still in business) and the parts are not interchangeable even if you managed to find a similar item.
You could try this website, a common U.S. manufacturer. Unfortunately, I think we will be seeing a post not long from now that asks something like "how do I replace this entire threshold?"