As for bolts , if it ain't broke , don't fix it . I have only replace a luge bolt , maybe , 1 - 2 - 3 times in 50 years . It is usually from cross threading the nut . Or trying to install an incorrect nut .
As far as automotive bulbs , if it ain't burned out , I do not replace it .
But , notice , I am not paying myself for labor .
If at work , if one lamp in a fixture is burned out , I replace all of them . But the customer is paying for my labor .
As far as automotive bulbs , if it ain't burned out , I do not replace it .
But , notice , I am not paying myself for labor .
If at work , if one lamp in a fixture is burned out , I replace all of them . But the customer is paying for my labor .
