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Dead bolts are installed by screwing together an exterior keyed cylinder to the interior knobbed cylinder. In between is the throw bolt that secures the door to the door jamb. Some present-day manufacturers of dead bolts do allow customization ,but not all. It may be that the mounting plate was not designed to be removed from the knob (or grasp). I've ...


Yes, this is just a lump of metal, big enough that it doesn't matter a lot what you lube it with. (I'd lean more to a grease than an oil -- lithium grease used with a light touch, perhaps.) But it also shouldn't need lubrication on a regular basis, so I suspect you've got something else going on.

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