Funny to see all that hassle some here seem to accept just for not using Loctite on standard nuts and bolts - for even safer joints. Not even visible to the public, so why looking for all sorts of contraptions just to avoid thread lockers. Certainly you select the suitable type of these , mostly the low strenght or max. normal strength, otherwise you need heavy tools for disassembling later. Nylocs are not safer than low strength Loctite and friction in threads is same, so what reason for not getting Loctiite and all ??
These "aircraft" safety nuts look like mangling threads when assembling or undoing them. No problem when exchanging the set - but I guess today you don´t bin BSF fasteners after one use only ?? So once more a good idea to have Loctite on threads, they will stay perfect for many times.
Vic