Spare tire hold-down

Why in the world would anyone want to go to a hardware store buy a bolt probably made in China then have to grind the head to make it fit and it still won't stay in pace or fit right when there are probably hundreds of originals out there for a few bucks and you will have the satisfaction of your car being original not all cobbed up with incorrect junk like so many are and decreasing the value of it!!! Makes no sense at all!!