Where can I find information on Kent 700c Eagle Ridge axle nuts, I want to buy Hexlox
The quickest and most reliable way to find out for the bike would be by measuring directly. The Hexnuts come in M9, M10, or 3/8 sizes and then all are said to take a 6mm Hexlox. From reading here: https://hexlox.com/collections/hexlox-compatible-extras/products/hexnut-wheel-nut-lock

Extract from same page:


  FRONT WHEEL: 
  most Front Wheels use M9
  If your Front Wheel Nut fits your rear wheel or its for VanMoof, Miche and DuraAce, use M10 For vintage bikes please double check. 
  3/8 is rarely used. Best to check your axle diameter. 
  
  FOR REAR WHEEL:
  most Rear Wheels use M10x1mm
  Fits all Single Speed and Fixed rear wheels.
  Also suitable for Rohloff, Bion-X, NuVinci, VanMoof Front and Rear, Miche Front and Rear, DuraAce Front and Rear.
  
  FOR SHIMANO ALFINE/NEXUS. 
  Select: Rear 3/8 - Alfine/Nexus 
  (3/8' x 26tpi)