M2 - stock retainer plate nut, threadlocker or not

[metroplex]

I adjusted the drop on my Benelli M2 (went from the factory B to C for a 5mm drop) and wondered whether I should use blue threadlocker on the 13mm nylock nut in the rear of the stock. Benelli didn't seem to use any, and there's both a split lock washer and nylock nut to hold it in place.

 

Any thoughts?

[truckcop]

Never felt the need nor have I ever actually had the need to do so in the 20+ years of owning M1/M2's. The lock washer and nut work just fine without any help.

[metroplex]

Thanks, it never hurts to ask.