It would be necessary to drill and tap the plug for a threaded stud or a bolt, and use washers and a nut to pull the plug to the "out" position. Just don't drill all the way through, or you'll need to make a new plug!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!