loctite is for *******. use grease and muscle that **** in place.

i've learned my lesson when it comes to lockrings, one hub stripped, one hub had it's threading shell sheared off.

once its on, sprint down the street or mash the bike up a hill. dont use your brakes or resist to stop, just coast till you stop moving, then get off, and tighten it more. two cycles should do it, three could be overkill.

personally, i use an old 1/8" chainwhip that has a tooth notch then combine that with a 3 foot cheater bar to get all the leverage in the world. of course, this would be a two man job.