[JLars]

I've got a Pella fiberglass entry door (approx 6 years old) that has an adjustable threshold. The four adjustment screws will each turn, and the threshold moves accordingly, but as soon as someone steps on the threshold it drops to the lowest position leaving a gap beneath the door. Apparently the screws, or the mating parts (nuts?)are essentially stripped. Are the threshold components replaceable? If so, how is it done, as simply loosening the screws does not seem to 'release' the threshold cap. I appreciate any suggestions.

 

[joecaption]

Only thing I can think of off hand is a base nut like this.
http://www.bing.com/images/search?q...F5CA90D049B45D61F0B7DD9994F5&selectedIndex=98

 

[mknasa dad]

Could be that you may just need a new threshold. Call Pella and see if it is warrantied.

 

[Pellawandd]

Good morning - We invite you to connect with us toll-free at 855-735-5232 to speak with customer service for answers to your questions. Please let me know if there's anything else I can do to help. -Erin F., Pella Community Manager