Abstract: A fastener assembly for bringing into contacting engagement a module-mounting plate with a retaining-sleeve aperture and a module-supporting plate with a receptacle aperture includes first and second sub-assemblies. The first sub-assembly includes a shaft-retaining sleeve within which there is retained for rotation relative to the shaft-retaining sleeve a drive shaft having drive-shaft distal and proximate portions, the distal portion having defined thereabout a helical grove. The shaft-retaining sleeve is press fit within the retaining-sleeve aperture such that the drive-shaft proximal and distal portions protrude from opposite sides of the module-mounting plate.

Abstract: A partial-slot card guide installation tool comprises two opposing runners configured to register with grooves of a full-sized slot of a rack system, and two guides fixed relative to the two opposing runners. The two guides configured to receive a partial-slot card guide and position the partial-slot card guide within the full-sized slot to provide a partial-sized slot smaller than the full-sized slot within the full-sized slot.