As Chris Rock once said: “Whitney Houston? I used to sing with her… You supa hot fire? …I’m the fire extinguisher!” Below is the story of how I learned how use rivnuts and tighten 4 bolts. Sometimes you just need a fire extinguisher on-hand and don’t want to be a hillbilly with junk rattling all over your car. FEAR NOT! Kidde has a solution (Pronounced kid-eh) All this was really an excuse to go to harbor freight and try installing some rivnuts. Rivnut installation is similar to rivets. They allow you to add a threaded attachment point to thin materials that may not hold threads and are too thin for inserts. They are also used on square tubing because the inside is rarely accessible to put a traditional nut on. For more information, please contact your local fire department.