[Ant]

Found this information
Quote US Navy:
Naval Ships' Technical Manual, Chapter 75:
"Although lockwashers may be encountered, using the flat washers with selflocking nuts, self-locking fasteners, self-locking inserts, or thread sealants such as MIL-S-22473 anaerobic compounds is preferable.

A flat washer is used for many purposes, some proper and some not. The two most common proper purposes are:
1. To distribute the pressure of the nut or bolt evenly over the part being secured, reducing the chance of damage thereto, and
2. To provide a smooth surface for the nut or bolt to bear on, making it less likely to loosen as a result of an uneven fastening surface.

Bottom line use flatwashers and if not sure or the part is inaccessible use the correct thread lock and as mentioned Loctite Blue or medium strength is generally sufficient for general automotive applications, if you want to get it apart. For the newcomer Dont use Loctite 262 on your knock off wheel threads or any thread lock for that matter as the larger the thread the worse the problem can become to undo!