Shipping to the United States has been suspended due to recent tariff changes.
Christmas Holiday Closure
We will be closing 4pm on 16th December and re-opening 5th Jan
Nyloc nuts retain their locking ability up to 250 °F (121 °C).
Can they be reused?
It depends upon what you read and what you want to believe.
Personally, I would take into account how tight the nut feels when tightening, how critical the location and how much a replacement nut costs.