Retirement of Rhona Mohan. AF Fasteners would like to announce the retirement of Rhona Mohan after twenty one years of loyal and faithful service. Rhona joined the company in 1996 primarily to work on the Cincinnati centreless grinder, at which she became very proficient, no mean feat considering her previous job had been as a seamstress in a lingerie factory! Over the years, as the nature of works changed, Rhona turned her hand to any task that was required, lathe operator,