Where can I find information on Kent 700c Eagle Ridge front and rear outer axle nuts, so they can be replaced with 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)