Neil
'fraid you are stuck.
When a trade name well known for certain properties becomes a generic term its because there is no suitable single / very few word alternative that adequately covers the circumstances in which it has become the norm.
Although gluing, bonding, secure with engineering adhesive et al are probably more generic and equally adequate loctited specifically covers fixing a shaft it a hole or male and female threads to a suitable degree of permanence. This particular duty and the substances used thereof are both sufficiently widespread and sufficiently specific that a separate term is useful. All other candidates are more general with properties which may conflict with that application if unwisely chosen. It is, for example, possible to bond shafts in holes with glues and engineering adhesives that are not generically loctites but the overall properties and techniques may well be different.
Using loctite, preferably with a suitable grade or strength annotation, covers things nicely with minimal ambiguity. The edit from Brian G above nicely illustrates the problems you can get into when you start trying too pedantic. Shades of the Academie Francaise.
Clive.
PS Re Niels post above. Loctite(d) specific trade name and loctited process. If different brand is really important then say so but usually merely high, medium, low strength is sufficient. Or just assume what is usually used.
Simples
.Edited By Clive Foster on 22/05/2018 13:04:56
Edited By Clive Foster on 22/05/2018 13:08:15