I had a gas cap vent screw vibrate loose last weekend and an air filter cover screw vibrate loose at the same time, so i obviously lost them in the two feet of snow and was unable to find them. i e-mailed jiffy and told them of my dilemma. within four days i had a new gas cap and two replacement screws. i was impressed with the fast service and this is just one reason why i will own a jiffy for life. (the other is that it will probably last longer than i will.)