A sample from the products for the E-1 Fan Cover-shroud include: Bolt,flange,6x12, Cover By Starter, Shroud Comp B., Shroud Comp. A.
This schematic depicts all components used in the Sh50 1989 (k) Belgium E-1 Fan Cover-shroud partslist.
On this parts fiche the Bolt,flange,6x20 is the most specified component.